SYSTEM AND METHOD FOR TREATING WASTE LITHIUM ION BATTERY

WIPO Patent Application WO/2023/007869

A1

This system for treating a waste lithium ion battery is for recovering lithium from a waste lithium ion battery through the elution of lithium by immersing, in water, a calcinated product that can be obtained by calcinating a waste lithium ion battery containing phosphorus as a positive electrode active material. The system comprises: a mixing device for mixing an alkali metal salt other than lithium with a positive electrode active material contained in a waste lithium ion battery; and a calcinating device for calcinating, at a predetermined first temperature, the mixture obtained by the mixing device at a predetermined first temperature, wherein the mixing device is configured such that an alkali metal salt is ground and kneaded into the positive electrode active material.

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OSAWA HIROAKI
TAKADA SHOJI
YAMASHITA MARIKO
TSUZAWA MASAKI
NAGAI RYOSUKE
SUGATA MASAHIRO
ANDO FUMINORI
LI DAMING
ZHAO FENGWA
LI YANG
TANG WENFANG
SONG MINGJUN
YANG HONGFENG

PCT/JP2022/016752

February 02, 2023

March 31, 2022

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KAWASAKI HEAVY IND LTD (JP)
CHINA CONCH VENTURE HOLDINGS LTD (CN)
ANHUI CONCH KAWASAKI ENERGY CONSERVATION EQUIPMENT MFG CO LTD (CN)

C22B7/00; C22B26/12

WO2019026978A1

2019-02-07

JP2016191143A	2016-11-10
JP2016191143A	2016-11-10
JP2012229481A	2012-11-22

ARCO PATENT & TRADEMARK ATTORNEYS (JP)

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