New Member | Zhengzhou Yi'an TOMYA: Building Thermal Runaway Protection Solutions for Energy Storage

Zhengzhou Yi'an Waterborne Polymer Materials Co., Ltd. (TOMYA) has recently completed its membership admission process and officially joined the China Energy Storage Alliance (CNESA) as a member organization.

 As the large-scale deployment of new energy storage accelerates, thermal runaway protection has become critical to the safe development of the energy storage industry. As a CNESA member and a national high-tech enterprise, Zhengzhou Yi'an Waterborne Polymer Materials Co., Ltd. (TOMYA), leveraging its self-developed DSP nano-silicon-based materials, has launched its Energy Storage Thermal Safety Management System 3.0, building a full-chain passive protection system from battery packs to energy storage containers and positioning itself at the forefront of the global energy storage thermal safety sector.

An Advanced Innovation Platform Reinforcing R&D Strength

The company is dedicated to the R&D of thermal safety materials and system solutions for energy storage, with an integrated innovation platform covering material development, solution design, and operating-condition validation. It operates a 670-mu (approximately 44.7-hectare) materials R&D base, an 8,000-square-meter professional thermal runaway testing ground, and 10 R&D and testing laboratories, forming an industry-leading thermal safety R&D and testing center.

The project team is led by Professor Li Zhenwen, a leading figure in nanotechnology, and R&D Director Wang Zhen, with in-depth industry-university-research collaboration with universities including Beihang University and Zhengzhou University. The company has won the First Prize of the Henan Provincial Science and Technology Progress Award, with its technical achievements officially recognized. It has also obtained multiple internationally recognized certifications, including the full ISO system, IATF 16949, UL, TÜV Rheinland, and SGS, earning dual endorsement from both domestic and overseas markets for its products and technologies.

Self-Developed Core Materials that Disrupt Traditional Thermal Protection

The company has independently developed DSP nano-silicon-based composite materials featuring a unique nested-bubble "Matryoshka" microstructure. At high temperatures, the material rapidly ceramizes to form a stable, long-lasting thermal insulation layer, with protection performance far exceeding that of traditional fireproof insulation materials.

The material delivers outstanding core performance: temperature resistance above 1,600°C, thermal conductivity as low as 0.025-0.035 W/(m·K), combined with ultra-thin and lightweight properties, water and corrosion resistance, non-toxic and halogen-free composition, and weather and salt-spray resistance. In extreme fire tests, it achieved volume loss of less than 1% after 2 hours of ablation at 1,000°C and less than 2% after 1 hour at 1,600°C; under extreme conditions with a hot-face temperature of 1,350°C, the cold-face temperature can be as low as 51°C - industry-leading thermal insulation performance.

Three-Tier Protection System for One-Stop Compliance Certification

Built on the DSP core material, the company has established a complete product matrix of coatings, boards, core materials, felts, structural adhesives, and gels, creating a three-tier safety protection system: burn-through prevention for battery covers, high fire resistance for packs, and fire spread prevention for containers.

Among them, the 0.35 mm ultra-thin DSP insulation and fireproof coating is easy to apply and suitable for spraying onto cell packs and energy storage cabins; DSP fireproof boards meet the Class A1 non-combustible standard and set a world record of 3.5 hours in the UL 263 fire resistance test. The complete protection system keeps the enclosure intact after thermal runaway with no fire spread, with safety indicators far exceeding industry standards - providing one-stop support for customers to pass the world's most stringent energy storage safety tests, including UL 9540A, NFPA 855, and IEC.

Partnering with Industry Leaders to Build a Safe Energy Storage Ecosystem

Zhengzhou Yi'an is one of the few companies worldwide that possesses core material technology, application development, and structural design capabilities to provide complete thermal runaway management and safety protection material solutions for energy storage. The company has established testing and mass-production cooperation with most of the top energy storage enterprises at home and abroad, and has delivered complete UL 9540A large-scale fire test solutions more than 20 times - all passed on the first attempt - safeguarding energy storage safety.