リチウムイオン電池の再資源化処理方法

Japanese Patent JP7120578

B2

To provide: a processing method which allows valuables to be efficiently collected from a lithium ion battery in a simple and convenient manner; and a good-quality metal material for nickel metal hydride batteries or a metal material for hydrogen storage, which includes collected valuables.SOLUTION: A method for processing lithium ion batteries in which a positive electrode having an Al-containing current collector and a positive electrode active material layer containing a lithium transition metal composite oxide containing Ni and/or Co as a positive electrode active material, a negative electrode having a Cu-containing current collector and a negative electrode active material layer, and an electrolyte are encased in a battery case comprises the steps of: discharging the lithium ion batteries in such a manner that a quantity of elution of the Cu is 0.02 mass% or less to a mass of the positive electrode; dismantling the lithium ion batteries to collect the positive electrodes subsequently to the discharge; and obtaining the metal material containing Ni and/or Co from the collected positive electrodes.SELECTED DRAWING: None

Natsuura Tatsuya
Atsushi Yokoyama
Tomokazu Abe
Yasuhide Maki
Shinichi Ogura
Shigetaka Kai

JP2020151630A

August 17, 2022

September 09, 2020

Click for automatic bibliography generation  

Nippon Heavy Chemical Co., Ltd.
Honda motor industry stock company

H01M10/54

JP2012193424A
JP2013101830A
JP2014173157A
JP2015103320A

Yoshida Masayoshi
Hiroaki Umemura
Yasuko Yoshida

Previous Patent: Cosmetics in a delaminated container

Next Patent: NUCLEAR FUEL PELLET HAVING LOW DENSITY PART AND PRODUCTION THEREOF