New Apple patent application for dense lithium cells allowing longer battery life

New Apple patent application for dense lithium cells allowing longer battery life
A new patent application from Apple reveals techniques to increase the energy capacity of rechargeable lithium battery cells without increasing the size of the battery, allowing longer battery life in future devices. The application entitled entitled “Increasing Energy Density in Rechargeable Lithium Battery Cells” describes charging a battery using a "multi-step constant-current constant-voltage (CC-CV) charging technique."
The CC-CV charging technique would allow the thickness of the anode active material inside a battery cell to be increased in both "volumetric and gravimetric energy density." But while the density of the power capacity would be increased, the size of the battery, as well as its maximum charging time and minimum life cycle, would remain unchanged.
(source)
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