電気化学セル

Japanese Patent JP7304788

B2

To provide a lamination type electrochemical cell that can reduce the possibility of internal short circuit caused by a negative electrode terminal tab and has improved safety.SOLUTION: An electrochemical cell 1 includes a laminated electrode body 2 having a positive electrode 10 and a negative electrode 20 which are laminated via a separator 30, an insulating tape 4 attached to the laminated electrode body, and an exterior package body for accommodating the laminated electrode body therein. The insulating tape includes a first insulating tape 40 which is attached so as to cover the positive electrode body 12 arranged on the outermost peripheral side through a separator, and a second insulating tape 45 which is attached so as to cover the negative electrode body 22 arranged on the outermost peripheral side through a separator. The first insulating tape includes an extension tape portion 41 which is attached so as to cover, through a separator, a positive electrode connecting piece 13 that connects the positive electrode body arranged on the outermost peripheral side and the positive electrode body arranged at one layer just inside the negative electrode body arranged on the outermost peripheral side.SELECTED DRAWING: Figure 7

Nagayuki Kimura
Shunji Watanabe
Kazumi Tanaka

JP2019184461A

July 07, 2023

October 07, 2019

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Seiko Instruments Inc.

H01M10/04; H01G11/82; H01M6/02; H01M10/0587; H01M50/105; H01M50/474; H01M50/531; H01M50/586; H01M50/595

JP2018018663A
JP2005310578A
JP2016170888A
JP2002289257A
JP2017188371A
JP2016110856A
JP2002164076A
JP2003157902A

田▲崎▼ 聡
Shingo Suzuki
Kazuzumi Nishizawa

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