Rechargeable aqueous hybrid battery

Patent metadata

Field	Value
Publication number	US-10763543-B2
Application number	US-201815949275-A
Country	US
Kind code	B2
Filing date	Apr 10, 2018
Priority date	Apr 10, 2018
Publication date	Sep 1, 2020
Grant date	Sep 1, 2020

Abstract

A zinc ion hybrid battery is provided. The battery contains an anode capable of intercalation and de-intercalation of zinc ions, a cathode having a 4V active material capable of intercalation and de-intercalation of zinc ions, lithium ions and both zinc and lithium ions; and an aqueous electrolyte which comprises: water, and a zinc salt of an anion comprising a fluoroalkylsulfonyl group of formula (I):

R—SO2-  (I)

wherein R is a perfluoroalkyl group of 1-5 carbons.

First claim

The invention claimed is:

1. A single compartment zinc ion hybrid battery, comprising:
an anode that intercalates and de-intercalates zinc ions;
a cathode having a 4V active material that intercalates and de-intercalates zinc and lithium ions; and
an aqueous electrolyte which comprises:
water; and
a zinc salt having an anion comprising a fluoroalkylsulfonyl group of formula (I):
R—SO 2 —  (I)

wherein R is a perfluoroalkyl group of 1-5 carbons;
wherein the 4V cathode active material is stable to the aqueous electrolyte and comprises at least one material selected from the group consisting of LiMn 2 O 4 , LiCoO 2 , LiFe 2 (PO 4 ), LiMn 1/3 Ni 1/3 Co 1/3 O 2 , LiNi 0.5 Mn 1.5 O 4 , LiCoPO 4 , 2,2,6,6-tetra-methylpiperidine 1-oxyl (TEMPO) and 4-methoxy-2,2,6,6-tetra-methylpiperidine 1-oxyl (MeO-TEMPO), and
wherein no physical barrier separates the aqueous electrolyte contacting the cathode from the aqueous electrolyte contacting the anode.

2. The zinc ion hybrid battery according to claim 1 , wherein the zinc salt is selected from the group consisting of Zinc (II) bis(trifluoromethylsulfonyl)imide (Zn(TFSI) 2 ), Zinc (II) bis(pentafluoroethylsulfonyl)imide (Zn(BETI) 2 ), Zinc (II) trifluoromethylsulfonate (Zn(TFS) 2 , and Zinc (II) bis(fluoromethylsulfonyl)imide (Zn(FSI) 2 ).

3. The zinc ion hybrid battery according to claim 1 , wherein a molar ratio of the zinc salt comprising the fluoroslkylsulfonyl group of formula (I) to the water is from 1/10 to 50/1.

4. The zinc ion hybrid battery according to claim 1 , wherein the electrolyte further comprises a water soluble zinc salt different from the zinc salt comprising the fluoroslkylsulfonyl group of formula (I).

5. The zinc ion hybrid battery according to claim 1 , wherein the electrolyte further comprises a room temperature ionic liquid which is a salt of an organic cation and a bis(fluorosulfonyl) imide anion (FSI).

6. The zinc ion hybrid battery according to claim 1 , wherein the anode is a carbon fiber mat.

7. A two-compartment zinc ion hybrid battery, comprising:
an anode compartment comprising an anode that intercalates and de-intercalates zinc ions and an anolyte which comprises:
water;
and
a zinc salt having an anion comprising a fluoroalkylsulfonyl group of formula (I):
R—SO 2 —  (I)

wherein R is a perfluoroalkyl group of 1-5 carbons;
a cathode compartment comprising a cathode having a 4V active material which can intercalate and de-intercalate zinc ions, lithium ions or both zinc and lithium ions; and
a catholyte comprising zinc ions and lithium ions; and
a solid electrolyte permeable to lithium ions;
wherein
the 4V cathode active material is stable to the catholyte and comprises at least one material selected from the group consisting of LiMn 2 O 4 , LiCoO 2 , LiFe 2 (PO 4 ), LiMn 1/3 Ni 1/3 Co 1/3 O 2 , LiNi 0.5 Mn 1.5 O 4 , LiCoPO 4 , 2,2,6,6-tetra-methypiperidine 1-oxyl (TEMPO) and 4-methoxy-2,2,6,6-tetra-methypiperidine 1-oxyl (MeO-TEMPO), and
the solid electrolyte prevents the crossover of the anolyte and the catholyte.

8. The zinc ion hybrid battery according to claim 7 , wherein the anode is a carbon fiber mat.

9. A vehicle comprising the zinc ion hybrid battery according to claim 1 .

10. The two compartment zinc ion hybrid battery according to claim 7 , wherein the zinc salt of the anolyte is selected from the group consisting of Zinc (II) bis(trifluoromethylsulfonyl)imide (Zn(TFSI) 2 ), Zinc (II) bis(pentafluoroethylsulfonyl)imide (Zn(BETI) 2 ), Zinc (II) trifluoromethylsulfonate (Zn(TFS) 2 , and Zinc (II) bis(fluoromethylsulfonyl)imide (Zn(FSI) 2 ).

11. The two compartment zinc ion hybrid battery according to claim 7 , wherein a molar ratio of the zinc salt to water in the anolyte is from 1/10 to 50/1.

12. The two compartment zinc ion hybrid battery according to claim 7 , wherein the anolyte further comprises a water soluble zinc salt different from the zinc salt.

13. The zinc ion hybrid battery according to claim 7 , wherein the anolyte, catholyte or the anolyte and the catholyte further comprises a room, temperature ionic liquid which is a salt of an organic cation and a bis(fluorosulfonyl) imide anion (FSI).

14. A vehicle comprising the two compartment zinc ion hybrid battery according to claim 7 .

Assignees

• Toyota Eng & Mfg North America

Inventors

• Yang Ruidong
• Takechi Kensuke
• Suto Koji

Classifications

• H01M50/437

  Glass · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M2300/0045

  Room temperature molten salts comprising at least one organic ion · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M4/505

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