Title:
蓄電装置
Document Type and Number:
Japanese Patent JP7448499
Kind Code:
B2
Abstract:
A power storage device includes a plurality of power storage cells. An end surface portion of a case has an aspect ratio of 1.4 or more. At least a part of a first region between a lower end of a sealing part projected image and an upper end of a principal surface region projected image receives a pressure of a first surface pressure. At least a part of a second region between the upper end of the principal surface region projected image and a lower end of the principal surface region projected image receives a pressure of a second surface pressure. The first surface pressure is higher than the second surface pressure and is 1.5 MPa or more and 3.5 MPa or less. A height of at least a part of the first region receiving the pressure of the first surface pressure is 1 mm or more.
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Inventors:
Yuki Nagai
Takaaki Matsui
Takashi Noze
Koichiro Isobe
Ryoichi Wakimoto
Takaaki Matsui
Takashi Noze
Koichiro Isobe
Ryoichi Wakimoto
Application Number:
JP2021029770A
Publication Date:
March 12, 2024
Filing Date:
February 26, 2021
Export Citation:
Assignee:
Toyota Motor Corporation
Prime Planet Energy & Solutions Co., Ltd.
Prime Planet Energy & Solutions Co., Ltd.
International Classes:
H01M50/262; H01M10/04; H01M10/058; H01M50/103; H01M50/15; H01M50/209; H01M50/291; H01M50/293
Domestic Patent References:
| JP2018081841A | ||||
| JP2019128991A | ||||
| JP2018060755A | ||||
| JP2014157747A |
Foreign References:
| WO2020031737A1 | ||||
| WO2020261729A1 | ||||
| WO2011111153A1 |
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office