Method And System For An Ultra-High Voltage Cobalt-Free Cathode For Alkali Ion Batteries

Patent metadata

Field	Value
Publication number	US-2020411895-A1
Application number	US-201916452245-A
Country	US
Kind code	A1
Filing date	Jun 25, 2019
Priority date	Jun 25, 2019
Publication date	Dec 31, 2020
Grant date	—

Abstract

Systems and methods for an ultra-high voltage cobalt-free cathode for alkali ion batteries may include an anode, a cathode, and a separator, with the cathode comprising an active material ANi(1-x)MnxSbOy, where x is a number between 0.0 and 1.0, y is an integer, and A comprises one or more of lithium, sodium, and potassium. The anode may include one or more of an alkali metal, silicon, and carbon. In one example, x is a value in the range between 0.05 and 0.9 and y is a value in the range between 1 and 8 where a specific capacity of the active material is greater than 50 milliamp-hours per gram. In another example, x is a value in the range between 0.4 and 0.6 and y is a value in the range between 1 and 8, where a specific capacity of the active material is greater than 70 milliamp-hours per gram.

First claim

1 . An active material for use in a battery, the active material comprising:
ANi (1-x) Mn x SbO y , where x is a number between 0.0 and 1.0, y is an integer, and A comprises one or more of lithium, sodium, and potassium.

2 . The active material of claim 1 , wherein the active material is used in a battery comprising an anode, a separator, and an electrolyte.

3 . The battery according to claim 2 , wherein the electrolyte comprises a liquid, solid, or gel.

4 . The battery according to claim 2 , wherein the anode comprises one or more of: an alkali metal, silicon, and carbon.

5 . The active material according to claim 1 , wherein 0.05<x<0.9 and 1<y<8.

6 . The active material according to claim 5 , wherein a discharge specific capacity of the active material on a conductive material to form an electrode is >50 milliamp-hours per gram.

7 . The active material according to claim 1 , wherein 0.4<x<0.6 and 1<y<8.

8 . The active material according to claim 7 , wherein a discharge specific capacity of the active material on a conductive material to form an electrode is >70 milliamp-hours per gram.

9 . The active material according to claim 1 , wherein the active material is doped with a transition metal oxide or a non-transition metal oxide.

10 . The active material according to claim 1 , wherein the active material comprises a 5 to 30% excess of lithium.

11 . The active material according to claim 1 , wherein x=0.2, y=2, and a discharge specific capacity of the active material on a conductive material to form an electrode is greater than 100 milliamp-hours per gram.

12 . The active material of claim 1 , wherein the active material operates at a voltage of more than 4.5 volts vs Li/Li+.

13 . A method of forming a battery, the method comprising:
providing an anode, a cathode, and a separator, the cathode comprising an active material ANi (1-x) Mn x SbO y , where x is a number between 0.0 and 1.0, y is an integer, and A comprises one or more of lithium, sodium, and potassium.

14 . The method according to claim 13 , wherein the anode comprises one or more of: an alkali metal, silicon, and carbon.

15 . The method according to claim 13 , wherein the active material comprises a 5 to 30% excess of lithium.

16 . The method according to claim 13 , wherein 0.05<x<0.9 and 1<y<8.

17 . The method according to claim 16 , wherein a discharge specific capacity of the active material is >50 milliamp-hours per gram.

18 . The method according to claim 13 , wherein 0.4<x<0.6 and 1<y<8.

19 . The method according to claim 18 , wherein a discharge specific capacity of the active material is >70 milliamp-hours per gram.

20 . The method according to claim 13 , wherein the active material is doped with a transition metal oxide or a non-transition metal oxide.

21 . The method according to claim 13 , wherein x=0.2, y=2, and a discharge specific capacity of the active material is greater than 100 milliamp-hours per gram.

22 . The method according to claim 13 , wherein the cathode active material comprises a 5 to 30% excess of lithium.

23 . The method according to claim 13 , wherein the battery operates at a voltage of more than 4.5 volts vs Li/Li+.

24 . A battery, the battery comprising:
an anode, a cathode, and a separator, wherein:
the cathode comprises an active material ANi (1-x) Mn x SbO y , where x is a number between 0.0 and 1.0, y is an integer, and A comprises one or more of lithium, sodium, and potassium.

25 . The battery according to claim 24 , wherein the electrolyte comprises a liquid, solid, or gel.

26 . The battery according to claim 24 , wherein the anode comprises one or more of: an alkali metal, silicon, and carbon.

27 . The battery of claim 24 , wherein the active material comprises a 5 to 30% excess of lithium.

28 . The battery according to claim 24 , wherein 0.05<x<0.9 and 1<y<8.

29 . The battery according to claim 28 , wherein a specific capacity of the active material is >50 milliamp-hours per gram.

30 . The battery according to claim 24 , wherein 0.4<x<0.6 and 1<y<8.

31 . The battery according to claim 30 , wherein a specific capacity of the active material is >70 milliamp-hours per gram.

32 . The battery according to claim 24 , wherein the active material is doped with a transition metal oxide or a non-transition metal oxide.

33 . The battery according to claim 24 , wherein x=0.2, y=2, and a discharge specific capacity of the active material is greater than 100 milliamp-hours per gram.

34 . The battery of claim 24 , wherein the active material operates at a voltage of more than 4.5 volts vs Li/Li+.

Assignees

• Enevate Corp

Inventors

• Ansari Younes
• Ji Liwen
• Pestana Jill Renee
• Park Benjamin

Classifications

• H01M10/054

  Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium · CPC title

• H01M4/0404

  by coating on electrode collectors · CPC title

• H01M4/58 Primary

  of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates · CPC title

• H01M4/505

  of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy · CPC title

• H01M4/525

  of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy · CPC title