Toppan develops Fire Extinguishing Film for Lithium-ion batteries

Film produces no harmful gases

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Toppan
Toppan’s fire extinguishing film is on sale from February.

Toppan Printing (Toppan) (TYO: 7911), a global enterprise in communication, security, packaging, décor materials, and electronics solutions, has developed a fire extinguishing film that responds to heat by emitting aerosol particles. This new film is an addition to Toppan’s “Smart Life-value Packaging” lineup, which is part of the recently launched “Toppan S-value Packaging” range targeting added value for society and fulfilling living. The fire extinguishing film is on sale from February and targeted at manufacturers of batteries and electrical appliances.

With applications for rechargeable batteries expanding to such fields as mobile devices and mobility, lithium-ion batteries are becoming more widely used and offering higher power levels. However, this increases the risk of fire-related accidents, not only during use but also after disposal. Toppan has combined its advanced coating technologies and transparent vapor-deposited GL barrier film with a highly effective fire extinguishing agent from Yamato Protec Corporation to produce an adhesive film with outstanding long-term durability and workability.

Toppan
The fire extinguishing film can be attached to the inside of lithium-ion battery cases, switchboard panels, or outlet covers.

Toppan’s fire extinguishing film is highly effective in extinguishing fires at an early stage or preventing their spread in the event of equipment problems or short circuits. It is lightweight and compact, meaning it can be used with ease in enclosed spaces and locations in which there is a fire risk. Potential applications include attachment to the inside of lithium-ion battery cases, switchboards and power distribution equipment, outlet covers, or waste containers at public facilities. The film uses no substances that pose a risk to humans or the environment and produces no harmful gases when it is activated.

The film works by filling an enclosed space with fire extinguishing aerosol particles in response to the heat generated by a fire. The aerosol particles extinguish the fire through negative catalysis. This makes it an effective solution for putting out fires promptly and containing their spread to prevent further damage.

“This film enables greater fire safety without any negative impact on people or the environment,” said Yoshimitsu Anamizu, managing executive officer of Toppan’s Living and Industry Division. “We intend to develop more products based on this technology to contribute to accident and disaster prevention and a safer, more sustainable society for everyone.”

Toppan
The fire extinguishing capabilities of the film are based on negative catalysis by aerosol particles

The fire extinguishing film will be on display in the Toppan Booth (S1-12, South Hall 1) at Tokyo Pack 2021, which will be held at the Tokyo Big Sight exhibition center from 24 to 26 February.

GL Barrier is Toppan’s range of transparent films providing world-class barrier performance. The multilayer structure of GL Barrier films combines unique coating and vapor-deposited layers to enable outstanding, stable barrier performance relied upon for a wide range of items in the food, medical, pharmaceutical, and industrial materials sectors. Films in the GL Barrier range include Prime Barrier, for products with superior functionality and added value, Freshlight, for simple barrier packaging, and GL Film, for diverse applications from fast-moving consumer goods to industrial materials.