Lithium ion batteries including stabilized lithium composite particles
First Claim
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1. A lithium ion battery comprising:
- a cathode comprising a material comprising an olivine or spinel structure; and
an anode comprising a graphite or hard carbon material and having a coating, the coating comprising a composite lithium powder comprising a lithium metal powder core coated with a complex lithium salt selected from the group consisting of LiPF6, LiBF4, LiClO4, LiAsF6, LiF3SO3, and mixtures thereof that surrounds and encapsulates the core.
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Abstract
A lithium ion battery having a cathode and an anode, the cathode includes a material having an olivine or spinel structure, the anode includes a coating of a composite lithium powder coated with a complex lithium salt, such as LiPF6, LiBF4, LiClO4, LiAsF6, LiF3SO3, and mixtures thereof. A separator is disposed between the anode and the cathode, and a non-aqueous electrolyte solution in contact with the cathode, the anode, and the separator. The anode can include a carbon material. A layer of a composite lithium powder coated with a complex lithium salt can be disposed between the anode and the separator.
11 Citations
12 Claims
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1. A lithium ion battery comprising:
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a cathode comprising a material comprising an olivine or spinel structure; and an anode comprising a graphite or hard carbon material and having a coating, the coating comprising a composite lithium powder comprising a lithium metal powder core coated with a complex lithium salt selected from the group consisting of LiPF6, LiBF4, LiClO4, LiAsF6, LiF3SO3, and mixtures thereof that surrounds and encapsulates the core. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A battery comprising:
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a cathode comprising a material having an olivine or spinel structure; an anode comprising a carbon material; a separator disposed between the anode and the cathode, wherein a layer of a composite lithium powder comprising a lithium metal powder core coated with a complex lithium salt selected from the group consisting of LiPF6, LiBF4, LiClO4, LiAsF6, LiF3SO3, and mixtures thereof that surrounds and encapsulates the core is disposed between the anode and the separator; and a non-aqueous electrolyte solution in contact with the cathode, the anode, and the separator. - View Dependent Claims (8, 9, 10, 11, 12)
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Specification