ELECTROLYTES FOR LOW IMPEDANCE, WIDE OPERATING TEMPERATURE RANGE LITHIUM-ION BATTERY MODULE
First Claim
1. A lithium ion battery cell, comprising:
- a housing;
a cathode disposed within the housing, wherein the cathode comprises a cathode active material;
an anode disposed within the housing, wherein the anode comprises an anode active material; and
an electrolyte disposed within the housing and in contact with the cathode and anode, wherein the electrolyte consists essentially of;
a solvent mixture comprising a cyclic carbonate, an non-cyclic carbonate, and a linear ester;
a lithium salt in a concentration ranging from approximately 1.0 molar (M) to approximately 1.6M; and
an additive mixture consisting essentially of lithium difluoro(oxalato)borate (LiDFOB) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte, and vinylene carbonate (VC) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte.
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Accused Products
Abstract
A lithium ion battery cell includes a housing, a cathode disposed within the housing, wherein the cathode comprises a cathode active material, an anode disposed within the housing, wherein the anode comprises an anode active material, and an electrolyte disposed within the housing and in contact with the cathode and anode. The electrolyte consists essentially of a solvent mixture, a lithium salt in a concentration ranging from approximately 1.0 molar (M) to approximately 1.6 M, and an additive mixture. The solvent mixture includes a cyclic carbonate, an non-cyclic carbonate, and a linear ester. The additive mixture consists essentially of lithium difluoro(oxalato)borate (LiDFOB) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte, and vinylene carbonate (VC) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte.
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Citations
27 Claims
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1. A lithium ion battery cell, comprising:
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a housing; a cathode disposed within the housing, wherein the cathode comprises a cathode active material; an anode disposed within the housing, wherein the anode comprises an anode active material; and an electrolyte disposed within the housing and in contact with the cathode and anode, wherein the electrolyte consists essentially of; a solvent mixture comprising a cyclic carbonate, an non-cyclic carbonate, and a linear ester; a lithium salt in a concentration ranging from approximately 1.0 molar (M) to approximately 1.6M; and an additive mixture consisting essentially of lithium difluoro(oxalato)borate (LiDFOB) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte, and vinylene carbonate (VC) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A lithium ion battery cell, comprising:
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a housing; a cathode disposed within the housing, wherein the cathode comprises a cathode active material; an anode disposed within the housing, wherein the anode comprises an anode active material; and an electrolyte disposed within the housing and in contact with the cathode and anode, wherein the electrolyte comprises a solvent mixture, a lithium salt in a concentration ranging from approximately 1.0 molar (M) to approximately 1.6 M, and lithium difluoro(oxalato)borate (LiDFOB) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte; and wherein the solvent mixture comprises a cyclic carbonate, a non-cyclic carbonate, and a linear ester, and wherein the cyclic carbonate consists essentially of fluoroethylene carbonate (FEC). - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A lithium ion battery cell, comprising:
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a housing; a cathode disposed within the housing, wherein the cathode comprises a cathode active material; an anode disposed within the housing, wherein the anode comprises a titanate-based active material; and an electrolyte disposed within the housing and in contact with the cathode and anode, wherein the electrolyte comprises a solvent mixture, a lithium salt in a concentration ranging from approximately 1.0 molar (M) to approximately 1.6 M, and lithium difluoro(oxalato)borate (LiDFOB) in an amount ranging from approximately 0.5 wt % to approximately 2.0 wt % based on the weight of the electrolyte; wherein the solvent mixture comprises a cyclic carbonate, an non-cyclic carbonate, and a linear ester, wherein the cyclic carbonate consists essentially of propylene carbonate (PC). - View Dependent Claims (24, 25, 26, 27)
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Specification