Title:
SECONDARY BATTERY TREATMENT METHOD
Document Type and Number:
Japanese Patent JP2019186000
Kind Code:
A
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
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Inventors:
MAEDA HIROBUMI
SHIMOTASHIRO HAJIME
SHIMOTASHIRO HAJIME
Application Number:
JP2018074619A
Publication Date:
October 24, 2019
Filing Date:
April 09, 2018
Export Citation:
Assignee:
NIPPON MAGNETIC DRESSING CO LTD
International Classes:
H01M10/54; C22B7/00; C22B11/02
Domestic Patent References:
| JP2010003512A | 2010-01-07 | |||
| JP2012138301A | 2012-07-19 | |||
| JP2016204676A | 2016-12-08 |
Attorney, Agent or Firm:
Masahiro Shimoda
Ichiro Abe
Ichiro Abe