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Journal Article

Citation

Shimoju T, Shibagaki M. J. Japan Soc. Safety Eng. 2022; 61(2): 149-155.

Vernacular Title

環境試験槽用爆発戸によるハザード抑制策の有効性 −リチウムイオン2 次電池の熱暴走実験結果から−

Copyright

(Copyright © 2022, Japan Society for Safety Engineering)

DOI

10.18943/safety.61.2_149

PMID

unavailable

Abstract

When the explosion vent opens due to thermal runaway of the lithium-ion secondary battery placed in the environmental test chamber, and the open state is maintained, new hazards may be produced by continuous flame emissions, repeated gas explosions, and toxic gas outflows. This paper proposes a hinged door type explosion vent (explosion door) that opens at a set pressure and closes by its own weight to control these hazards. Next, the hazard control effects of the proposed system is discussed from the results of its operational experiments.

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環境試験槽内に設置されたリチウムイオン2 次電池の熱暴走によって爆発放散口が開口し,開口状態を維持すると,立ち上る炎の継続,ガス爆発の繰返し,有害ガスの流出等に起因して新たなハザードが顕在化する恐れがある.本報文は,まずこれらのハザードを抑制するためにまず設定圧力で開口し,自重で閉口する蝶番ドア式爆発放散口(爆発戸)を提案している.次にその動作実験結果より,本提案システムのハザード抑制効果を考察している.


Language: ja

Keywords

environmental test; explosion door; hazard; lithium-ion secondary battery; thermal runaway; ハザード; リチウムイオン2 次電池; 熱暴走; 爆発戸; 環境試験

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