Levron Aerogel develops advanced aerogel-based passive thermal barrier materials for ESS and BESS safety — helping support thermal containment, propagation mitigation, compartmental isolation, and high-temperature passive defense in utility-scale stationary battery infrastructure.
A single localized failure in a stationary battery system is not a contained event. Left unchecked, thermal energy migrates through racks, compartments, and enclosures — escalating from an isolated module fault into a container-level incident. Understanding this propagation dynamic is the foundation of effective ESS safety design.
Localized thermal runaway in high-energy battery cells can reach extreme temperatures in seconds — far exceeding the limits of standard insulation materials. Passive barriers must be rated for sustained high-temperature exposure, not just momentary peaks.
The window between initial cell failure and broader propagation is measured in minutes. Passive thermal barriers can extend this window — buying critical time for cooling systems, emergency response, or natural event limit. This delay time is an engineerable design parameter.
Unlike mobile applications, stationary battery containers concentrate high-energy-density modules in fixed enclosures without the natural ventilation or spatial redundancy present in distributed deployments. This density makes thermal propagation faster and harder to interrupt without purpose-built passive barriers at the compartment level.
In a standard BESS cabinet, adjacent racks share thermal proximity without intentional barriers. Convective and radiative heat transfer between racks accelerates propagation once a single rack reaches thermal runaway temperatures. Thermally isolating these rack-to-rack interfaces is a high-value protection pathway.
The inner walls of battery containers and cabinets are exposed to potential high-temperature events during module failures. Without protection, structural enclosure integrity can be compromised — leading to external fire risk. Aerogel-based layers adjacent to enclosure walls can help limit thermal transfer to the container structure itself.
Active cooling systems manage normal operating temperatures effectively. But during thermal runaway — when temperatures spike far beyond normal operating ranges in seconds — only passive barriers can provide the immediate, always-on material resistance that helps limit spread.
Liquid or air cooling manages operational heat loads during normal cycling. Requires power, sensors, and control systems. Limited effectiveness during rapid thermal runaway events.
Always-active material resistance. No power, sensors, or control required. Provides thermal isolation at compartment boundaries, slowing or interrupting propagation pathways regardless of system state.
Battery Management Systems detect abnormal temperatures and may trigger cooling or disconnection. Detection latency and response delays mean they cannot replace material-level passive protection.
Last-resort containment for full escalation events. Effective at suppression but cannot prevent propagation from occurring — and are costly to deploy and reset.
Passive barriers require no power, logic, or mechanical activation. They perform under all operating conditions — normal, fault, and emergency — without dependency on system health.
Dividing the BESS into thermally isolated zones limits propagation to the zone of origin. Each barrier layer adds a new thermal resistance boundary — reducing the total system risk surface.
High-performance thermal barriers extend the time-to-propagation — providing critical operational response time for cooling systems, automated disconnection, and emergency teams.
Containing thermal events within isolated compartments reduces the probability of full container-level losses — protecting hardware, enclosure integrity, and the operational continuity of the wider installation.
Systems with robust passive protection are more resilient to partial fault events — supporting operational reliability, reducing downtime risk, and contributing to lifecycle asset value in long-duration storage infrastructure.
Passive barriers are most effective when designed into the system architecture from the start — at the rack separator, module boundary, cabinet partition, and enclosure wall levels — rather than retrofitted.
Stationary battery systems are not as space-constrained as EV packs — but layout efficiency still matters. Compartmental barriers, cabinet partitions, and enclosure linings all compete with rack density, cable management, cooling pathways, and serviceability space. Thinner materials with equivalent or superior thermal performance create more engineering flexibility.
Every centimeter of thermal barrier material between racks or compartments reduces the cabinet's usable depth and module density. Thinner aerogel barriers let engineers protect more zones without sacrificing layout efficiency.
Utility-scale BESS installations involve many containers and racks. Lightweight thermal barrier materials — enabled by the >90% air-by-volume structure of aerogel — reduce structural load and simplify installation logistics compared with heavy conventional insulation slabs.
A thinner barrier is only valuable if it maintains performance at 600–800°C+ temperatures. Aerogel's silica nano-porous structure enables sustained high-temperature resistance in a form factor that conventional thick materials cannot match.
Stationary BESS installations may experience humidity, condensation, and ambient moisture ingress over their service life. Materials that absorb moisture lose insulation performance progressively. Superhydrophobic aerogel maintains stable thermal behavior regardless of environmental moisture levels.
Levron Aerogel is not a generic insulation supplier. It is an advanced aerogel material company developing silica-based passive thermal barrier platforms engineered for battery safety environments — lightweight, high-temperature capable, hydrophobic, and relevant to stationary energy storage system protection strategies.
Glass wool or ceramic wool reinforced aerogel felt — flexible, thin, and high-performance. Designed for barrier layer applications at module, rack, compartment, and enclosure levels. A1 fire classification. Operating range to 650°C standard, 1300°C in ceramic reinforced configurations.
Silica aerogel granules for fill-based thermal protection applications — cavities, gap-filling, loose insulation zones, and complex geometry applications where cut-and-fit sheets cannot reach. The same nano-porous structure and thermal performance in an adaptable free-form format.
Levron Aerogel works with customers on application-specific material configurations — custom dimensions, reinforcement types, formats, and composite assemblies. The felt and granule platforms are starting points, not fixed endpoints.
A 165° water contact angle — active to 650°C — means Levron Aerogel materials do not absorb moisture from ambient air, condensation, or environmental exposure. In BESS installations across variable climate environments, this moisture-independence allows consistent thermal performance throughout the system's service life.
Aerogel-based thermal barriers operate continuously. No power input, no sensor network, no control logic required. This makes them uniquely reliable as a safety layer — functioning identically whether the BESS system is operating normally, cycling under load, in fault condition, or completely powered down.
Silica aerogel materials do not degrade through routine thermal cycling within their operating range. The inorganic silica structure does not oxidize, combust, or lose thermal properties through environmental exposure — making these materials well-suited to long-duration infrastructure deployments.
Platform-level and product-context metrics relevant to stationary battery system design. Where exact ESS-specific values are configuration-dependent, data is presented as platform-level behavior with engineering interpretation.
Among the lowest thermal conductivity values achievable in any solid material. This ultra-low conductivity is what enables thin, compact barrier formats that achieve equivalent or superior thermal resistance compared to materials 3–5× thicker. In the applied felt configuration, product-level conductivity is approximately 0.022–0.024 W/m·K — still significantly below conventional alternatives.
Full thermal barrier performance from cryogenic to high-temperature service conditions — a 850-degree operating span that covers all realistic BESS service environments and fault conditions.
850°C operating spanCeramic wool reinforcement extends the upper operating limit significantly — relevant for applications requiring resistance to extreme thermal events beyond standard runaway temperatures.
Extreme thermal defenseA1 is the highest non-combustible material classification. In BESS fire protection design, the barrier material itself must not contribute fuel to a thermal event under any foreseeable conditions.
Non-combustibleSuperhydrophobic surface behavior means the material actively repels moisture rather than absorbing it. Unlike mineral wool alternatives that can lose 50%+ conductivity performance when wet, aerogel maintains stable thermal properties in humid environments.
Moisture-independentThe nano-porous structure is primarily composed of air — the best natural insulator. This ultra-high porosity is directly responsible for both the exceptional thermal performance and the lightweight character of the material.
Structure-driven performanceHigh specific heat means the material absorbs significant thermal energy per unit mass before reaching equilibrium — providing an additional thermal buffer during rapid heating events beyond simple conduction resistance.
Thermal energy absorptionSufficient structural integrity for barrier installation in rack separators, compression-loaded compartment walls, and enclosure-adjacent applications — without requiring rigid substrates in most installation scenarios.
Structurally functionalOver 90% of the material volume is nano-scale air — the source of both its thermal performance and its lightweight character. This structure also makes aerogel inherently low-density, reducing installation mass at any scale.
Ultra-light architectureThe following represents application-level concepts and integration possibilities — not validated final-use designs. Each BESS architecture is unique. Levron Aerogel works with engineering teams to identify appropriate barrier placement, thickness, and format for specific system configurations.
Thin aerogel felt panels positioned between adjacent racks interrupt direct thermal radiation and conduction pathways. In a multi-rack BESS cabinet, these separators represent the most impactful thermal isolation zone — containing events at the individual rack level.
Horizontal or vertical aerogel panels dividing the container into distinct thermal compartments. Heat generated in one compartment must traverse the barrier before affecting adjacent compartments — allowing the rest of the system to remain operational or safely shut down.
Aerogel felt lining bonded or mechanically fixed to the inner surface of battery container walls provides a last line of passive thermal defense — protecting structural steel from thermal damage and preventing external fire spread from internal events.
In modular BESS configurations with individually replaceable battery modules, aerogel layers at module boundaries can help limit thermal event transmission to adjacent modules — preserving more of the system during partial failures and potentially enabling targeted module replacement rather than full system decommissioning.
Battery Management System components and control electronics located within or adjacent to battery cabinets may benefit from aerogel thermal shielding — protecting sensitive electronics from elevated ambient temperatures during partial fault events.
The following comparison is conceptual and illustrative — based on known general material properties. Application-specific performance varies by system configuration, installation design, and operating conditions.
| Comparison Criterion | Levron Aerogel Felt | Stone Wool | Glass Wool | Generic Thick Barrier |
|---|---|---|---|---|
| Thermal Conductivity | 0.022–0.024 W/m·K (felt) · 0.012–0.016 W/m·K (platform) | ~0.035–0.045 W/m·K | ~0.030–0.040 W/m·K | Variable · typically >0.04 W/m·K |
| Thickness Efficiency (equiv. R-value) | ✓ High — ~2 cm vs. 6 cm stone wool | ✗ Low — requires thick sections | ✗ Low — requires thick sections | ✗ Low to medium |
| High-Temperature Resistance | ✓ 650°C standard · 1300°C (ceramic) | ~ 750°C (limited) | ✗ ~250–550°C (depends on binder) | ~ Variable by type |
| Moisture Resistance | ✓ Superhydrophobic · 165° contact angle | ✗ Absorbs moisture · loses R-value | ✗ Absorbs moisture · loses R-value | ✗ Typically weak moisture resistance |
| Fire Classification (Felt) | ✓ A1 — Non-combustible | ✓ A1 (mineral glass) | ~ A1–A2 depending on binders | ~ Variable |
| Weight Efficiency | ✓ Ultra-light · >90% air | ✗ Higher density | ~ Moderate weight | ✗ Heavy |
| Long-Term Thermal Stability | ✓ Stable silica structure · no thermal degradation | ~ Generally stable but moisture vulnerability | ~ Binder degradation risk over time | ~ Variable |
| Compact Integration Potential | ✓ Thin profiles · flexible · cut-to-fit | ✗ Bulky · difficult to cut precise geometries | ~ More flexible but thicker | ✗ Limited flexibility |
The fire resistance and moisture stability characteristics of Levron Aerogel are not abstract material properties — they translate directly into real-world performance advantages for stationary battery systems deployed in demanding infrastructure environments.
In controlled 1000°C flame exposure testing, 2 centimeters of Levron Aerogel Felt maintained barrier integrity beyond the combined performance of 9 centimeters of conventional insulation materials. This is not a product specification claim — it is a material performance narrative that demonstrates the extreme thermal efficiency advantage of nano-porous aerogel architecture in fire barrier applications.
Conceptual narrative — not a certified comparative test standard. See engineering team for configuration-specific discussion.
Utility-scale BESS systems operate over 10–20 year asset lifecycles in outdoor or semi-outdoor environments. Conventional mineral insulation materials can absorb significant moisture from humidity, condensation cycles, and ambient exposure — leading to progressive thermal performance degradation. Aerogel's superhydrophobic surface chemistry maintains stable thermal resistance regardless of environmental moisture levels.
Conceptual thermal performance retention after moisture exposure. Actual values depend on material grade, exposure conditions, and duration. For reference only.
In stationary energy storage infrastructure, materials must maintain performance over the full system lifecycle — not just on day one. A thermal barrier that progressively loses performance due to moisture absorption or thermal cycling degradation is not a reliable passive protection layer for a 15-20 year infrastructure asset. Levron Aerogel's silica nano-porous structure and superhydrophobic surface chemistry are designed to support stable, long-term thermal barrier behavior.
The exceptional thermal barrier performance of aerogel is not the result of any single property — it emerges from the synergistic suppression of all three primary heat transfer mechanisms simultaneously, enabled by the nano-porous silica structure.
The nano-porous structure of aerogel features pores in the 50–100 nanometer range. At this scale, conventional air convection cannot occur — the pore diameter is smaller than the mean free path of air molecules, effectively suppressing convective heat transfer entirely within the material bulk.
With over 90% of the material volume composed of nano-scale air pores, very little solid silica exists to conduct heat directly from one surface to the other. The discontinuous, highly interconnected silica nano-network minimizes solid-phase thermal conduction pathways — the primary heat transfer mechanism in conventional solid insulation.
Aerogel suppresses conduction (disconnected silica nano-network), convection (sub-mean-free-path pore size prevents air movement), and radiation (nano-pore network scatters infrared radiation efficiently at high temperatures). This simultaneous suppression of all three mechanisms is why aerogel performs so significantly better than conventional materials at equivalent thickness.
The silica nano-network is discontinuous and highly fragmented — minimizing solid-phase heat conduction pathways through the material cross-section.
Pores smaller than the mean free path of air molecules (~70 nm at standard pressure) prevent bulk air movement — eliminating convective heat transfer within the material.
The high surface area and nano-scale pore structure of aerogel effectively scatters infrared thermal radiation — especially important at elevated temperatures (>300°C) where radiation becomes the dominant heat transfer mechanism.
Levron Aerogel is not a distributor or a converter. It is a vertically integrated aerogel materials developer and manufacturer — with R&D depth, production capability, and the engineering culture to work on demanding application-specific problems in stationary battery safety.
Over seven years of focused aerogel chemistry, process development, and application engineering — building foundational knowledge in silica aerogel synthesis, felt manufacturing, granule processing, and performance characterization.
A dedicated 14,000 square meter integrated production facility — from raw material processing through felt and granule manufacturing to quality control and packaging. Not a pilot operation — a production-ready platform.
Levron Aerogel Felt and Levron Aerogel Granules represent the current commercial platform — designed for thermal barrier, fire protection, and thermal management applications across energy, industrial, and specialty sectors.
Ongoing R&D into broader aerogel chemistry platforms — including higher-performance compositions, composite material combinations, and novel application-specific formats for demanding industrial and energy environments.
Not every BESS application follows a standard format. Levron Aerogel supports custom material configurations, non-standard dimensions, and composite assemblies — designed around the specific requirements of each partner's system architecture.
Seven years of proprietary process development has built institutional knowledge in aerogel synthesis that allows Levron to adapt and improve material formulations in response to specific application challenges — not just catalog existing products.
Levron works with engineering partners from material evaluation through pilot production to scaled supply. Initial engagements are designed to efficiently move through material evaluation, application testing, and system integration dialogue.
The Levron material platform is designed for industrial application environments — not consumer products. This bias toward infrastructure, energy, and industrial use cases means the engineering culture, product specs, and development priorities align with the needs of BESS developers and integrators.
Levron presents its materials with honest, engineering-appropriate framing — not inflated claims. Where properties are configuration-dependent or require application-specific testing, this is clearly stated. Technical partners can trust the data they receive.
Beyond current products, Levron's R&D capabilities represent a growing platform of advanced aerogel chemistry exploration — positioning the company as a potential long-term strategic partner for organizations building applications with evolving material performance requirements.
The path from initial evaluation to active engineering engagement is structured to be efficient for technical stakeholders. Levron Aerogel works with ESS engineering teams at every phase — from sample evaluation through pilot integration design.
Engineering team review of materials, specs, and ESS application context. Identify relevant product formats and configurations.
Request material samples — standard felt and granule formats for internal laboratory evaluation and system-fit assessment.
Technical discussion with Levron engineering team — integration concepts, format requirements, application-specific configuration discussion.
Application-specific material configuration development and pilot production for integration testing within target ESS system architecture.
Transition to scaled supply partnership — consistent quality, volume production capability, and ongoing technical support for system integration teams.
Evaluate Levron Aerogel Felt and Granule materials directly in your own facility — assess thermal properties, physical format, integration feasibility, and material behavior relevant to your ESS protection requirements.
Request Sample KitConnect with the Levron Aerogel engineering team for a focused discussion on your ESS thermal protection requirements, barrier placement strategy, material format selection, and application-specific configuration options.
Talk to an EngineerAccess material documentation, technical references, and engineering knowledge to support your ESS thermal protection evaluation process.
Full technical platform overview of Levron Aerogel Felt — properties, configurations, operating range, fire class, moisture data, and application context.
Request DocumentRequest full technical datasheet for Levron Aerogel Felt or Granules — including comprehensive material property tables, configuration options, and engineering data relevant to thermal system design.
Request DatasheetEngineering knowledge guide covering: thermal propagation risk in stationary battery systems, passive barrier strategy options, compartmental isolation approaches, and aerogel material considerations for BESS applications.
Request GuideRequest a physical sample pack of Levron Aerogel Felt and Granules — enabling direct material assessment, fit tests, and preliminary thermal evaluation in your engineering environment before engaging in detailed application development.
Request Sample KitA focused engineering explainer covering the logic of passive thermal containment as a complementary BESS safety layer — covering active vs. passive protection, barrier placement principles, and system integration concepts.
Request ExplainerA focused technical brief on silica aerogel material science — nano-porous structure, heat transfer suppression mechanisms, property ranges, and why aerogel's material architecture enables performance levels impossible with conventional insulation approaches.
Request BriefLevron Aerogel materials are positioned as a thermal barrier material platform relevant to ESS thermal safety applications — not as a pre-validated, ESS-certified product. Application-specific validation, testing, and certification requirements depend on the specific BESS system architecture, jurisdiction, and project standards. Levron works with engineering and procurement teams to support their evaluation processes, but responsibility for final application validation remains with the system designer and integrator. We recommend engaging our engineering team early in the design phase to structure appropriate evaluation pathways.
Levron Aerogel Felt is available in flexible sheet format and can be supplied in various thicknesses and dimensions depending on application requirements. Custom cutting, shaping, and composite assemblies can be discussed through our engineering consultation process. The granule format is also available for fill-based or complex geometry applications. We encourage technical teams to contact us directly to discuss specific dimensional, format, and configuration requirements for their BESS application context.
Aerogel's exceptional thermal performance relative to conventional materials stems from its nano-porous structure — achieving thermal conductivities of 0.012–0.016 W/m·K at the platform level, compared to 0.035–0.045 W/m·K for typical stone wool. In a 1000°C flame exposure scenario, 2 cm of Levron Felt demonstrated sustained barrier integrity beyond the combined performance of 9 cm of conventional materials in our internal testing narrative. For formal comparative testing specific to your BESS application and relevant test standards, we recommend contacting our engineering team to discuss appropriate evaluation approaches.
Levron Aerogel's superhydrophobic behavior — a 165° water contact angle active to 650°C — is directly relevant to outdoor and variable-climate installations. Unlike conventional mineral insulation materials that absorb ambient moisture and progressively lose thermal performance, aerogel maintains stable thermal properties regardless of environmental humidity levels. Over a 15–20 year asset lifecycle, this moisture-independence represents a significant long-term reliability advantage. Specific outdoor installation designs should be discussed with our engineering team to ensure appropriate integration formats and any necessary vapor management considerations.
The simplest starting point is a material sample request — we supply standard format samples of Levron Aerogel Felt and Granules that allow your engineering team to assess material properties, physical integration fit, and preliminary thermal behavior directly. Beyond samples, an engineering consultation call with our technical team allows focused discussion of your specific ESS application requirements, system architecture, and barrier placement strategy — typically sufficient to determine whether a structured pilot project makes sense. Contact us through the form below to begin either pathway.
Levron Aerogel works with ESS developers, BESS integrators, battery system architects, EPC firms, and fire safety engineers to evaluate thermal barrier material strategies. Choose your pathway below.
Direct technical conversation with the Levron Aerogel engineering team. Discuss your BESS thermal protection requirements, barrier zone strategy, system architecture integration concepts, and material format options. Focused and efficient — designed for engineers with specific application questions.
Talk to an EngineerFor procurement and sourcing teams evaluating Levron Aerogel as a potential thermal barrier material supplier for ESS / BESS projects. Request pricing, lead times, volume capabilities, and supply structure information for your project planning needs.
Request QuoteFor ESS and BESS developers actively designing or building stationary battery storage systems who want to evaluate aerogel thermal barrier integration in a real application context — from material selection through pilot installation and performance assessment.
Start a Pilot ProjectFor organizations seeking a strategic material partnership with a growing advanced aerogel company — including distribution partnerships, joint development agreements, long-term supply arrangements, and investment or co-development discussions in the energy storage sector.
Partnership InquiryLevron Aerogel is a vertically integrated aerogel materials manufacturer. All technical content on this page is presented for engineering evaluation purposes. Material properties are platform-level or product-configuration data — application-specific performance should be confirmed through direct engineering engagement and testing.