| 摘要 |
PROBLEM TO BE SOLVED: To suppress expansion of fire incident to thermal runaway of a lithium ion battery, by mounting a fire extinguisher on the lithium ion battery.SOLUTION: A fire extinguisher 12 is mounted detachably on a lithium ion battery, including a safety valve opening when the internal pressure of a battery outer container rises, while covering the outside of the safety valve. The fire extinguisher 12 includes an adsorption filter 34 using anti-inflammatory metal meshes 30a, 30b and a glass wool arranged relatively to the safety valve 14. Flame of an electrolyte ejected by action of the safety valve 14 is extinguished by the anti-inflammatory metal meshes 30a, 30b and the electrolyte passed through the anti-inflammatory metal meshes 30a, 30b is adsorbed by the adsorption filter 34 using heat-resistant fibers and held so that it is scarcely ejected from an exhaust port 28. |
