Lithium-ion battery
First Claim
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1. A lithium-ion battery comprising:
- a positive electrode comprising a LiCoO2 active material;
a polymeric separator configured to allow electrolyte and lithium ions to flow between a first side of the separator and an opposite second side of the separator;
a liquid electrolyte comprising a lithium salt dissolved in at least one non-aqueous solvent;
a negative electrode comprising a lithium titanate active material;
wherein the positive electrode has a first capacity and the negative electrode has a second capacity that is less than the first capacity.
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Abstract
A lithium-ion battery includes a positive electrode having an active material and a polymeric separator configured to allow electrolyte and lithium ions to flow between a first side of the separator and an opposite second side of the separator. The battery also includes a liquid electrolyte having a lithium salt dissolved in at least one non-aqueous solvent and a negative electrode having a lithium titanate active material. The positive electrode has a first capacity and the negative electrode has a second capacity that is less than the first capacity.
205 Citations
38 Claims
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1. A lithium-ion battery comprising:
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a positive electrode comprising a LiCoO2 active material; a polymeric separator configured to allow electrolyte and lithium ions to flow between a first side of the separator and an opposite second side of the separator; a liquid electrolyte comprising a lithium salt dissolved in at least one non-aqueous solvent; a negative electrode comprising a lithium titanate active material; wherein the positive electrode has a first capacity and the negative electrode has a second capacity that is less than the first capacity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A lithium-ion battery comprising:
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a positive electrode having a first capacity and comprising a foil current collector and a LiCoO2 active material; a polymeric separator; a liquid electrolyte; and a negative electrode having a second capacity that is not greater than the first capacity, the negative electrode comprising a foil current collector and a lithium titanate active material. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A lithium-ion battery comprising:
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a positive electrode having a first capacity and comprising a foil current collector and an active material comprising LiCoO2, a binder, and a conductive additive; a liquid electrolyte; a negative electrode having a second capacity that is not greater than the first capacity, the negative electrode comprising a foil current collector and a Li4Ti5O12 active material; and a porous polymeric separator provided between the positive electrode and the negative electrode. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification