Title:
非水電解質二次電池及びその解体方法
Document Type and Number:
Japanese Patent JP7320017
Kind Code:
B2
Abstract:
To provide a nonaqueous electrolyte secondary battery which allows an electrode body to be easily disassembled into an easily recyclable form, and a disassembling method thereof.SOLUTION: A nonaqueous electrolyte secondary battery comprises an electrode body. The electrode body has a cathode having a cathode mixture layer, an anode having an anode mixture layer, a separator disposed between the cathode and the anode and a functional layer. The separator has a microporous film. The functional layer is provided between the electrode mixture layer and the microporous film so as to be in contact with at least one of the cathode mixture layer and the anode mixture layer. [A]The functional layer contains a binding resin and a degradable resin, and the electrode mixture layer contains a hardening resin, or [B] the functional layer contains a binding property resin and a hardening resin, and the electrode mixture layer contains a degradable resin. The degradable resin is a resin which can be broken down when being exposed to ionizing radiation. The hardening resin is a resin which is hardened when being exposed to ionizing radiation.SELECTED DRAWING: Figure 1
Inventors:
Yurika Kojima
Hiromasa Yagi
Hiromasa Yagi
Application Number:
JP2021051206A
Publication Date:
August 02, 2023
Filing Date:
March 25, 2021
Export Citation:
Assignee:
Prime Planet Energy & Solutions Co., Ltd.
International Classes:
H01M10/0585; H01M4/62; H01M10/54; H01M50/414; H01M50/417; H01M50/42; H01M50/426; H01M50/429; H01M50/434; H01M50/443; H01M50/449
Domestic Patent References:
| JP2016119222A | ||||
| JP2016178083A |
Foreign References:
| WO2020067778A1 | ||||
| US20200350632 | ||||
| CN107513130A |
Other References:
山岡 仁史,放射線分解性高分子材料,繊維学会誌,1991年,47巻9号,504-509頁
ブタジエン系合成ゴム架橋体の放射線による劣化,日本ゴム協会誌,1986年,59巻8号,472-476頁
小出 武城 ほか,ゴムに対する放射線の効果,高分子,1959年,8巻12号,681-687頁
ブタジエン系合成ゴム架橋体の放射線による劣化,日本ゴム協会誌,1986年,59巻8号,472-476頁
小出 武城 ほか,ゴムに対する放射線の効果,高分子,1959年,8巻12号,681-687頁
Attorney, Agent or Firm:
Patent Attorney Fukami Patent Office