A new Tesla patent outlines a new approach to solving this problem by “doping” cathode active materials with manganese. This innovation reportedly improves capacity retention and extends battery life. According to the patent, the doping process “reduces the dissolution of manganese from lithium manganese oxide spinel, minimizing cell degradation and capacity loss.”
The patent states: “Disclosed herein are various embodiments of manganese-doped cathode active materials having improved capacity retention and extended service life, as well as methods for preparing manganese-doped cathode active materials.” Tesla says these improvements could significantly increase cycle life and retain capacity in energy storage devices.
Source: Ferra
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