Direct observation of internal state of thermal runaway in lithium ion battery during nail-penetration test

被引：94

作者：

Yokoshima, Tokihiko ^{[1
]}

Mukoyama, Daikichi ^{[1
]}

Maeda, Fujio ^{[1
]}

Osaka, Tetsuya ^{[1
]}

Takazawa, Koji ^{[2
]}

Egusa, Shun ^{[2
]}

Naoi, Satomi ^{[3
]}

Ishikura, Satoru ^{[3
]}

Yamamoto, Koichi ^{[3
]}

机构：

[1] Waseda Univ, Res Org Nano & Life Innovat, Shinjuku Ku, 513 Waseda Tsurumaki Cho, Tokyo 1620041, Japan

[2] Toshiba Infrastruct Syst & Solut Corp, Saiwai Ku, 72-34 Horikawa Cho, Kawasaki, Kanagawa 2128585, Japan

[3] Natl Inst Technol & Evaluat, Suminoe Ku, 1-22-16 Nankokita, Osaka, Osaka 5590034, Japan

来源：

JOURNAL OF POWER SOURCES | 2018年 / 393卷

关键词：

PROPAGATION; SAFETY; MODEL; MODULE;

D O I：

10.1016/j.jpowsour.2018.04.092

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A system using a high-speed and high-precision X-ray inspection system for testing internal short circuits in lithium-ion batteries (LIBs) was firstly developed for the safety test on LIBs. X-ray transmission moving images of the anode and cathode were obtained in the layered LIB structure. The nail-penetration test was chosen to test for the presence of an internal short circuit. This system would allow direct observation of smoke generation inside outside the battery, ballooning of the pouch, as well as changing layered structures of electrodes in real time. Since the results of a conventional nail-penetration test are indicated only by smoke generation, fire, or explosion, this new system allows electrode changes in the pouch to be observed for the first time. This system is expected to lead to great developments in the safety of LIBs.

引用

页码：67 / 74

页数：8

共 33 条

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