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US 2018/0294522 A1Published application
High-voltage lithium-polymer batteries for portable electronic devices
AssigneeApple Inc.
InventorsHongli Dai, Richard Mank
Life of this patent
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Abstract
The disclosed embodiments provide a lithium-polymer battery cell. The lithium-polymer battery cell includes an anode and a cathode containing lithium cobalt oxide particles doped with a doping agent. The lithium-polymer battery cell also includes a pouch enclosing the anode and the cathode, wherein the pouch is flexible. The cathode may allow a charge voltage of the lithium-polymer battery cell to be greater than 4.25V.
Claims20
A lithium-polymer battery cell, comprising:
- an anode;
- and
- a cathode comprising particles formed of LiCoO2 doped with a doping agent and coated with a protection chemical;
- wherein the doping agent comprises one or more of magnesium, titanium, zinc, silicon, aluminum, zirconium, vanadium, manganese, or niobium;
- wherein the protection chemical comprises one or more of an oxide, a phosphate, or a fluoride;
- and
- wherein a charge voltage of the lithium-polymer battery cell is greater than 4.25V.
4 more elements
A method for manufacturing a battery cell, comprising:
- obtaining a cathode and an anode, wherein the cathode comprises lithium cobalt oxide particles doped with a doping agent and coated with a protection chemical;
- and
- sealing the cathode and the anode in an enclosure to form the battery cell;
- wherein the doping agent comprises one or more of magnesium, titanium, zinc, silicon, aluminum, zirconium, vanadium, manganese, or niobium;
- and
- wherein the protection chemical comprises one or more of an oxide, a phosphate, or a fluoride.
3 more elements
A portable electronic device, comprising:
- a set of components powered by a lithium-polymer battery cell with a charge voltage of greater than 4.25V, the battery cell comprising:
- an anode;
- and
- a cathode comprising particles formed of LiCoO2 doped with a doping agent and coated with a protection chemical;
- wherein the doping agent comprises one or more of magnesium, titanium, zinc, silicon, aluminum, zirconium, vanadium, manganese, or niobium;
- and
- wherein the protection chemical comprises one or more of an oxide, a phosphate, or a fluoride.
4 more elements
Dependencies are inferred from the claim text.