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US 2006/0078797 A1Published application
Lithium ion battery and methods of manufacture
AssigneeLithium Power Technologies, Inc.
InventorM. Zafar Munshi
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AssigneeLithium Power Technologies, Inc.
InventorM. Zafar Munshi
Estimating the term…
A lithium ion battery includes an anode, a cathode, and an electrolyte between the two. When the battery is in its initial charged state, as it is upon exiting the manufacturing process, the anode is composed of a first portion of lithium-deficient electrode material, and a second portion of lithium-rich or lithium-intercalated material coated on at least a part of the surface of the first portion. And the cathode is composed of lithium-deficient material adapted to react reversibly with lithium ions from the lithium-rich second portion of the anode during subsequent discharge of the battery from its initial charged state as the second portion becomes fully consumed. During each subsequent charge-discharge reaction cycle, free lithium ions from the cathode are inserted into the lattice structure of the solely remaining first portion of the anode to render it lithium-rich in the charged state, without plating lithium metal onto the anode, and lithium ions from the anode are re-inserted into the lattice structure of the cathode to render it lithium-rich in the discharged state. Methods of manufacture are described.
A lithium ion battery, comprising, in the initial manufactured state of the battery, an anode structured of a lithium metal electrode overlying and bonded to a lithium-deficient carbon electrode, a lithium deficient cathode, and an electrolyte separating said anode and said cathode, wherein the amount of lithium metal in said lithium metal electrode is substantially equivalent to the capacity of said lithium-deficient cathode to absorb lithium during discharge of said battery, whereby to preclude highly reactive contact of free lithium with said electrolyte during and after manufacture of the battery, said initial manufactured state of said battery being a charged state.
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A lithium ion battery, comprising an anode, a cathode, and an electrolyte disposed between the two, said battery having an initial charged state in its newly manufactured condition, in which said anode is composed of a lithium-deficient electrode, and a lithium metal layer overlying and adhered to at least a part of the surface of said lithium-deficient electrode of the anode, and said cathode is a separate lithium-deficient electrode adapted to absorb within its lattice structure substantially all lithium ions released by said lithium metal layer of said anode, the quantity of lithium in said lithium metal layer being not greater than will allow it to be fully consumed during the first discharge of the battery from its initial charged state, whereby to substantially eliminate contact between free lithium and said electrolyte while said battery is in its initial charged state.
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A method of manufacturing a lithium ion battery, comprising the steps of:
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Dependencies are inferred from the claim text.