Rechargeable aqueous zinc hybrid battery

Patent metadata

Field	Value
Publication number	US-2019312303-A1
Application number	US-201815949275-A
Country	US
Kind code	A1
Filing date	Apr 10, 2018
Priority date	Apr 10, 2018
Publication date	Oct 10, 2019
Grant date	—

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

1 . A zinc ion hybrid battery, comprising:
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.

2 . The zinc ion hybrid battery according to claim 1 , wherein the 4V cathode active material is compatible with aqueous electrolyte and has a redox potential of less than 5.5 V vs Li/Li+.

3 . The zinc ion hybrid battery according to claim 2 , wherein the 4V cathode active material 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-methypipertdine 1-oxyl (TEMPO).

4 . The zinc ion hybrid battery according to claim 1 , wherein the zinc salt of an anion comprising a fluoroalkylsulfonyl group of formula (I) 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 ).

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

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

7 . 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).

8 . The zinc ion hybrid battery according to claim 1 , wherein the battery is a single-compartment cell battery comprising one liquid electrolyte wherein no physical barrier separates the cathode electrolyte from the anode electrolyte.

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

10 . The zinc ion hybrid battery according to claim 1 , wherein the battery is a two-compartment cell battery, comprising:
an anode compartment comprising an anolyte; a cathode compartment comprising a catholyte; and a solid electrolyte permeable to lithium ions: wherein the solid electrolyte prevents the crossover of the anolyte and the catholyte.

11 . The zinc ion hybrid battery according to claim 10 , wherein the anode is a carbon fiber mat

12 . A vehicle comprising a zinc ion hybrid battery according to claim 1 .

Assignees

• Toyota Eng & Mfg North America

Inventors

• Yang Ruidong
• Takechi Kensuke
• Suto Koji

Classifications

• H01M2300/0002

  Aqueous electrolytes · CPC title

• H01M10/36 Primary

  Accumulators not provided for in groups H01M10/05-H01M10/34 · CPC title

• H01M2300/0045

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

• H01M4/583

  Carbonaceous material, e.g. graphite-intercalation compounds or CFx · CPC title

• H01M2220/20

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