Abstract: Methods and systems are provided for a cathode material for lithium ion batteries. In one example, the cathode material may include a lithium mixed metal oxide core and a surface coating surrounding the core. Optionally, a passivating layer may continuously surround the surface coating. In some examples, the surface coating or surface layer may include a sacrificial lithium source, a lithium-based active cathode catalyst, or a combination thereof. In other examples, methods are provided for manufacturing the cathode material for use in a lithium ion battery.

Abstract: Systems and methods are provided for passivating lithium nitride (Li3N) for use in a lithium-ion battery as a cathode pre-lithiation reagent. In one example, the cathode pre-lithiation reagent may include a core particle composed of Li3N, and a passivation coating uniformly disposed on at least a portion of a surface of the core particle. In some examples, the passivation coating may cover a majority of the surface of the core particle or may substantially completely cover the surface of the core particle. The cathode pre-lithiation reagent may further be included in the lithium-ion battery, where the passivation coating may mitigate unwanted side reactions during processing and manufacturing. In this way, Li3N may be successfully and reproducibly utilized as a cathode pre-lithiation reagent, such that initial lithium ion consumption may be compensated and capacity of the lithium-ion battery may be concomitantly increased.

Abstract: Methods and systems are provided for a cathode material for lithium ion batteries. In one example, the cathode material may include a lithium mixed metal oxide core and a surface coating surrounding the core. Optionally, a passivating layer may continuously surround the surface coating. In some examples, the surface coating or surface layer may include a sacrificial lithium source, a lithium-based active cathode catalyst, or a combination thereof. In other examples, methods are provided for manufacturing the cathode material for use in a lithium ion battery.