Rivian IP Holdings, LLC

Woochul Shin

Soo Kim

Ki Tae Park

Tae Kyoung Kim

Majid Talebiesfandarani

Yumi Kim

Rubayyat Mahbub

Sun Ung Kim

Provided herein is a cathode. The cathode can include a cathode active material. The cathode can include a coating disposed on the cathode active material. The coating can include LiMMAF(OH), where Mis a first metal, Mis a second metal, A is an anionic species, 1≤x≤2, 0≤y≤1, 0≤z≤1, and 0≤u≤1.

Electrode coatings and components thereof

Aspects of the disclosure relate to electrode active composites for use in battery cells that include a cathode active material including oxygen and an oxygen scavenging oxide. The cathode active material can be a blend of a lithium metal phosphate and an over-lithiated oxide. Advantageously, the blend of a lithium metal phosphate and over-lithiated oxide can have a higher energy density relative to the lithium metal phosphate alone and the oxygen scavenging oxide can improve the stability of the active composite.

Electrode active composite

Aspects of the disclosure relate to electrode active materials for use in battery cells that include a lithium metal phosphate core having a more ionically conductive layer thereon. The layer of the ionic conducting material advantageously can increase lithium ion conduction of the active material by at least one order of magnitude relative to the core material alone. As such, electrodes may be fabricated with lower areal densities resulting in battery cells that have such electrodes with higher charge rates and potentially smaller physical dimensions.

Fast-charge lithium metal phosphate materials

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Newark, CA, United States of America

Woochul Shin