Title:
蓄電素子
Document Type and Number:
Japanese Patent JP6792205
Kind Code:
B2
Abstract:
An object of the invention is to shorten the manufacturing time of an energy storage device by causing electrolyte to efficiently penetrate into a positive composite layer in a process of injecting the electrolyte. An energy storage device in which a negative electrode having a negative composite layer on a negative electrode collector foil and a negative composite layer non-forming part along a side of a negative electrode collector foil, and a positive electrode having a positive composite layer on a positive electrode collector foil and a positive composite layer non-forming part along a side of the positive electrode collector foil are laminated with a separator interposed therebetween, the separator having an insulating layer on its surface opposing the positive electrode, the negative composite layer non-forming part and the positive composite layer non-forming part are disposed in opposite directions to each other, a part of the negative composite layer non-forming part is connected to a negative electrode current collector, and a part of the positive composite layer non-forming part is connected to a positive electrode current collector. An end S1 on a side of the negative electrode current collector of the separator is projected more than an end P1 on the side of the negative electrode current collector of the positive composite layer, an end S2 on a side of the positive electrode current collector of the separator is projected more than an end P2 on the side of the positive electrode current collector of the positive composite layer, and a distance W2 from the end P2 of the positive composite layer to the end S2 of the separator is smaller than a distance W1 from the end P1 of the positive composite layer to the end S1 of the separator. This makes it possible to shorten the manufacturing time of the energy storage device.
Inventors:
Jie Tanaka
Application Number:
JP2017544204A
Publication Date:
November 25, 2020
Filing Date:
October 06, 2016
Export Citation:
Assignee:
Gs Yuasa Co., Ltd.
International Classes:
H01M10/04; H01G11/26; H01G11/52; H01M10/058; H01M50/443; H01M50/451; H01M50/454; H01M50/491
Domestic Patent References:
| JP2014067633A | ||||
| JP2015118875A | ||||
| JP2010205429A | ||||
| JP2013232425A | ||||
| JP2002298824A | ||||
| JP2009099558A |