Title:
二次電池の処理方法
Document Type and Number:
Japanese Patent JP6853402
Kind Code:
B2
Abstract:
To recover a valuable metal by separating a substrate and a lead frame material contained in a secondary battery in a heat treatment of the secondary battery.SOLUTION: A secondary battery is placed in an environment of 250°C to 550°C, and an electrolyte, plastics, and resins are gasified. A portion where a metal is crimped to an outside of a metal case, substrates fixed with the plastics, lead frame materials, etc. are expanded by heat so as to be in a state of being easily peeled off from the metal case by an impact or the like. A secondary battery body and metal components such as the substrates and the lead frame materials are sieved with a sieve mesh that does not allow the secondary battery body to pass through.SELECTED DRAWING: Figure 1
Inventors:
Hirofumi Maeda
Hajime Shimoda
Hajime Shimoda
Application Number:
JP2020088555A
Publication Date:
March 31, 2021
Filing Date:
May 21, 2020
Export Citation:
Assignee:
Nippon Magnetic Separation Co., Ltd.
International Classes:
H01M10/54; B09B3/00; B09B5/00; C22B7/00; C22B11/02
Domestic Patent References:
| JP2010003512A | ||||
| JP2017037818A | ||||
| JP2016204676A | ||||
| JP2013230437A | ||||
| JP2009161845A | ||||
| JP2012251220A | ||||
| JP2019034254A |
Attorney, Agent or Firm:
Masahiro Shimoda
Ichiro Abe
Ichiro Abe