公开(公告)号：EP4379075A1

公开(公告)日：2024-06-05

申请号：EP22848952.2

申请日：2022-03-31

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA ,  China Conch Venture Holdings Limited ,  Anhui Conch Kawasaki Energy Conservation Equipment Manufacturing Company Limited

发明人： 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

IPC分类号： C22B7/00 ,  C22B26/12

CPC分类号： Y02P10/20 ,  Y02W30/84 ,  C22B7/00 ,  H01M10/0525 ,  C22B26/12 ,  C22B1/02 ,  H01M10/54

摘要： A waste lithium-ion battery processing system is a system for processing a waste lithium-ion battery, the system performing roasting a waste lithium-ion battery whose cathode active material contains phosphorus to obtain a roasted product and immersing the roasted product in water to elute lithium from the roasted product into the water, thereby recovering the lithium from the waste lithium-ion battery. The system includes: mixing equipment that mixes a non-lithium alkali metal salt into the cathode active material contained in the waste lithium-ion battery; and a roaster that roasts, at a predetermined first temperature, a mixture that is obtained from mixing by the mixing equipment. The mixing equipment kneads the alkali metal salt into the cathode active material while grinding the alkali metal salt.

公开(公告)号：EP4379905A1

公开(公告)日：2024-06-05

申请号：EP22848951.4

申请日：2022-03-31

申请人： KAWASAKI JUKOGYO KABUSHIKI KAISHA ,  China Conch Venture Holdings Limited ,  Anhui Conch Kawasaki Energy Conservation Equipment Manufacturing Company Limited

发明人： 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

IPC分类号： H01M10/54

CPC分类号： Y02P10/20 ,  Y02W30/84 ,  C22B7/00 ,  H01M10/0525 ,  C22B26/12 ,  C22B1/02 ,  H01M10/54

摘要： A waste lithium-ion battery processing method is a method of processing a waste lithium-ion battery whose cathode active material contains phosphorus to recover lithium from the waste lithium-ion battery. The method includes: a thermal decomposition step of roasting the waste lithium-ion battery to thermally decompose the waste lithium-ion battery to produce a roasted product that contains the cathode active material; and a recovery step of immersing the produced roasted product in water to elute the lithium from the roasted product into the water, and then recovering the lithium. The thermal decomposition step includes: a roasting step of roasting the waste lithium-ion battery at a predetermined first temperature; and a mixing step of, before the roasting step, mixing a non-lithium alkali metal salt into the cathode active material of the waste lithium-ion battery.

公开(公告)号：EP3981516A1

公开(公告)日：2022-04-13

申请号：EP20818199.0

申请日：2020-02-26

申请人： Kawasaki Jukogyo Kabushiki Kaisha

发明人： ANDO, Fuminori ,  OSAWA, Hiroaki ,  TAKADA, Shoji ,  NAKAJIMA, Chie ,  YAMASHITA, Mariko ,  SUGATA, Masahiro ,  FUKUMOTO, Koji ,  TSUZAWA, Masaki ,  NAGAI, Ryosuke

IPC分类号： B03B5/28 ,  B09B3/00 ,  B09B5/00 ,  C22B7/00 ,  C22B26/12 ,  H01M10/54 ,  C22B3/06 ,  C22B3/22 ,  C22B3/44

摘要： Provided are a system for and a method of processing a waste lithium-ion battery, the system and the method making it possible to improve the recovery rate of lithium. One example of the system for processing a waste lithium-ion battery according to the present invention includes: a first aqueous solution generator (1) that includes a first elution tank (1a) storing water, and that immerses an active material taken out from the waste lithium-ion battery in the water in the first elution tank (1a) and subjects the active material to carbon dioxide bubbling in the first elution tank (1a) to generate an aqueous solution of pH 5.5 to 8.5, in which lithium contained in the active material is eluted; a first solid-liquid separator (2) that removes a solid component from the aqueous solution generated by the first aqueous solution generator (1); a first crystallizer (3) that causes lithium carbonate to be deposited from the aqueous solution, from which the solid component has been removed by the first solid-liquid separator (2); and a second solid-liquid separator (4) that performs solid-liquid separation on slurry containing the lithium carbonate deposited in the first crystallizer (3) to take out the lithium carbonate.