公开(公告)号：US11316208B2

公开(公告)日：2022-04-26

申请号：US17218863

申请日：2021-03-31

Applicant: American Hyperform, Inc.

Inventor： William Novis Smith ,  Scott D. Swoffer

IPC: H01M10/54 ,  H01M4/50 ,  H01M4/52 ,  H01M4/58 ,  H01M10/05 ,  H01M10/42 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  C01G53/00 ,  C22B3/00 ,  C22B47/00

Abstract: A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric acid or hydrochloric acid at a pH less than 2. Cobalt, nickel, and manganese oxides from the recycled lithium-ion battery material dissolve into the acidic water with the reductive assistance of gaseous sulfur dioxide. Anode carbon is filtered from the acidic water, leaving the dissolved cobalt, nickel, and manganese oxides in a filtrate. The filtrate is mixed with aqueous sodium hydroxide at a pH greater than 8. Nickel cobalt manganese hydroxide precipitates from the filtrate. The nickel cobalt manganese hydroxide is filtered from the filtrate and dried. The filtrate may be treated ammonium fluoride or ammonium bifluoride to precipitate lithium fluoride from the filtrate. The composition ratio of nickel to cobalt to manganese in the acid filtrate may be adjusted to a desired ratio. The anode carbon is recovered and purified for reuse.

公开(公告)号：US11710857B2

公开(公告)日：2023-07-25

申请号：US17722332

申请日：2022-04-16

Applicant: American Hyperform, Inc.

Inventor： William Novis Smith ,  Scott D. Swoffer

IPC: H01M10/42 ,  H01M10/54 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  C01G53/00 ,  C22B3/00 ,  C22B47/00

CPC classification number: H01M10/4242 ,  C01G53/006 ,  C22B23/043 ,  C22B47/0063 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/0525 ,  H01M10/54

Abstract: A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric acid or hydrochloric acid at a pH less than 2. Cobalt, nickel, and manganese oxides from the recycled lithium-ion battery material dissolve into the acidic water with the reductive assistance of gaseous sulfur dioxide. Anode carbon is filtered from the acidic water, leaving the dissolved cobalt, nickel, and manganese oxides in a filtrate. The filtrate is mixed with aqueous sodium hydroxide at a pH greater than 8. Nickel cobalt manganese hydroxide precipitates from the filtrate. The nickel cobalt manganese hydroxide is filtered from the filtrate and dried. The filtrate may be treated ammonium fluoride or ammonium bifluoride to precipitate lithium fluoride from the filtrate. The composition ratio of nickel to cobalt to manganese in the acid filtrate may be adjusted to a desired ratio. The anode carbon is recovered and purified for reuse.

公开(公告)号：US20230065685A1

公开(公告)日：2023-03-02

申请号：US17722332

申请日：2022-04-16

Applicant: American Hyperform, Inc.

Inventor： William Novis Smith ,  Scott D. Swoffer

IPC: H01M10/42 ,  H01M10/0525 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M10/54 ,  C01G53/00 ,  C22B3/00 ,  C22B47/00

Abstract: A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric acid or hydrochloric acid at a pH less than 2. Cobalt, nickel, and manganese oxides from the recycled lithium-ion battery material dissolve into the acidic water with the reductive assistance of gaseous sulfur dioxide. Anode carbon is filtered from the acidic water, leaving the dissolved cobalt, nickel, and manganese oxides in a filtrate. The filtrate is mixed with aqueous sodium hydroxide at a pH greater than 8. Nickel cobalt manganese hydroxide precipitates from the filtrate. The nickel cobalt manganese hydroxide is filtered from the filtrate and dried. The filtrate may be treated ammonium fluoride or ammonium bifluoride to precipitate lithium fluoride from the filtrate. The composition ratio of nickel to cobalt to manganese in the acid filtrate may be adjusted to a desired ratio. The anode carbon is recovered and purified for reuse.

公开(公告)号：US20220013815A1

公开(公告)日：2022-01-13

申请号：US17218863

申请日：2021-03-31

Applicant: American Hyperform, Inc.

Inventor： William Novis Smith ,  Scott D. Swoffer

IPC: H01M10/42 ,  H01M10/0525 ,  H01M4/583 ,  H01M4/525 ,  H01M4/505

Abstract: A process for recovering a nickel cobalt manganese hydroxide from recycled lithium-ion battery (LIB) material such as black mass, black powder, filter cake, or the like. The recycled LIB material is mixed with water and either sulfuric acid or hydrochloric acid at a pH less than 2. Cobalt, nickel, and manganese oxides from the recycled lithium-ion battery material dissolve into the acidic water with the reductive assistance of gaseous sulfur dioxide. Anode carbon is filtered from the acidic water, leaving the dissolved cobalt, nickel, and manganese oxides in a filtrate. The filtrate is mixed with aqueous sodium hydroxide at a pH greater than 8. Nickel cobalt manganese hydroxide precipitates from the filtrate. The nickel cobalt manganese hydroxide is filtered from the filtrate and dried. The filtrate may be treated ammonium fluoride or ammonium bifluoride to precipitate lithium fluoride from the filtrate. The composition ratio of nickel to cobalt to manganese in the acid filtrate may be adjusted to a desired ratio. The anode carbon is recovered and purified for reuse.