Anode for fluoride ion battery
AssigneeHonda Motor Co., Ltd.
InventorsKaoru Omichi, Qingmin Xu, Christopher Brooks
Life of this patent
Estimating the term…
Abstract
An anode for a fluoride ion electrochemical cell is provided and includes a layered material of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, or combinations thereof. The anode may be included in a fluoride ion electrochemical cell, which additionally includes a cathode and a fluoride ion electrolyte arranged between the cathode and the anode. At least one of the cathode and the anode reversibly exchange the fluoride ions with the electrolyte during charging or discharging of the electrochemical cell.
Claims20
An electrochemical cell comprising:
- a cathode,
- an anode including a layered material selected from the group consisting of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, and combinations thereof, and
- a fluoride ion electrolyte and arranged between the cathode and the anode,
- wherein at least one of the cathode and the anode reversibly exchange fluoride ions with the electrolyte during charging or discharging of the electrochemical cell.
A method of making an electrochemical cell, comprising:
- preparing an anode including by,
- a) providing a metal substrate,
- b) preparing a slurry in an inert atmosphere by mixing 60-95 wt % of a layered material, 1-20 wt % of a conductive carbon, and 1-20 wt % of a liquid binder, the layered material selected from the group consisting of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, and combinations thereof,
- c) depositing the slurry on the metal substrate, and
- d) drying the slurry in a vacuum to thereby prepare the anode,
- providing a fluoride ion electrolyte and a cathode, and
- arranging the electrolyte between the anode and the cathode.
A method of using an electrochemical cell comprising charging the electrochemical cell and discharging the electrochemical cell, wherein the electrochemical cell comprises,
- a) a cathode,
- b) an anode including a layered material selected from the group consisting of hard carbon, nitrogen doped graphite, boron doped graphite, TiS2, MoS2, TiSe2, MoSe2, VS2, VSe2, electrides of alkali earth metal nitrides, electrides of metal carbides, and combinations thereof, and
- c) a fluoride ion electrolyte arranged between the cathode and the anode.
Dependencies are inferred from the claim text.