Lithium storage cell capable of operating at high temperature
AssigneeSaft
InventorsFrederic Bonhomme, Philippe Biensan, David Germond, Jean-Marc Laluque
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Abstract
The use of a rechargeable lithium storage cell at a temperature lying in the range 80° C. to 180° C., said cell comprising a cathode, an anode comprising either Li4Ti5O12 or a carbon-containing material capable of inserting lithium, a separator, a non-aqueous solvent, and a lithium slat, wherein: the active material of said cathode is a lithiated metal oxide having the following formula: LiNi1-x-yCoxAl/MnyO2 in which: Al/Mn means Al and/or Mn; 0≦x≦0.5; 0≦y≦0.5; the sum x+y being less than 0.66; and wherein the lithium salt is selected from the group consisting of: LiPF6, LiBF4, LiBOB, LiBETI, and mixtures thereof.
Claims17
The use of a rechargeable lithium storage cell at a temperature lying in the range 80° C. to 180° C. said cell comprising a cathode, an anode comprising either Li4Ti5O12 or a carbon-containing material capable of inserting lithium, a separator, a non-aqueous solvent, and a lithium salt, wherein:
- the active material of said cathode is a lithiated metal oxide having the following formula:
- LiNiz-x-yCoxAl/MnyO2
- in which:
- Al/Mn means Al and/or Mn;
- 0≦x≦0.5;
- 0≦y≦0.5;
- the sum x+y being less than 0.66;
- and wherein the lithium salt is selected from the group consisting of:
- LiPF6, LiBF4, LiBOB, LiBETI, and mixtures thereof.
An electrochemical storage cell comprising a cathode, an anode comprising either Li4Ti5O12 or a carbon-containing material capable of inserting lithium, a separator of ceramic-coated polyethylene-terephalate, a non-aqueous solvent, and a lithium salt, the active material of said cathode being a lithiated metal oxide having the following formula:
- LiNi1-x-yCoxAl/MnyO2
- in which
- Al/Mn means Al and/or Mn;
- 0≦x≦0.5;
- 0≦y≦0.5;
- the sum x+y being less than 0.66;
- and the lithium salt being selected from the group consisting of LiPF6, LiBF4, LiBOB, LiBETI, and mixtures thereof.
(canceled)
Dependencies are inferred from the claim text.