Rivian IP Holdings, LLC

Enovix Corporation

Ki Tae Park

Soo Kim

Tae Kyoung Kim

Majid Talebiesfandarani

Yumi Kim

Cary Michael Hayner

Sookyung Jeong

Liyuan Sun

Guoxian Liang

Kim Lester Fortunati

Woochul Shin

Byoungchul You

Sun Ung Kim

Yoshifumi Shimizu

Judith Alvarado Kim

Ashim Shatil Hague

Victor Prajapati

Chaojun Shi

Systems and methods are provided herein for removing alternate material from a foil while minimizing the amount of alternate material particles that are deposited on the surface of an active material. For example, a web may comprise an active material on a first portion of a foil and an alternate material on a second portion of the foil. One or more brushes may be used to remove the alternate material from the second portion of the foil. As the one or more brushes remove the alternate material from the second portion of the foil, a vacuum may be used to capture the alternate material that is removed from the second portion of the foil. In such an example, the resulting web no longer has alternate material on the second portion of the foil and has reduced alternate material particles on the surface of the active material.

Mechanical stripping of sacrificial layer

A thermal release layer for electrode materials in a battery cell is provided. The battery cell can include a terminal and an electrode, in contact with the terminal. The battery cell can include a first material that conducts electricity to establish electrical continuity with the terminal. The battery call can include a second material that, in response to a temperature of the electrode reaching or exceeding a temperature threshold, expands to reduce the electrical continuity with the terminal.

Battery thermal release layer

Particular embodiments may provide a lithium-ion battery comprising a MAX compound to prevent and/or decrease Manganese dissolution. In some embodiments, the MAX compound comprises the formula MAX, wherein M is an early transition metal atom, n is an integer from 1 to 3, A is a group 13 or group 14 element, and X is C or N.

MAX carbide additive materials for lithium-ion batteries

Provided are electrodes for lithium-ion batteries comprising: a first lithium metal phosphate material comprising a first plurality of active material particles; and a second lithium metal phosphate material comprising a second plurality of active material particles, wherein both the first lithium metal phosphate material and the second lithium metal phosphate material are LiMPO, wherein M is one or more of iron (Fe) or manganese (Mn), and wherein the first lithium metal phosphate material is blended with the second lithium metal phosphate material at a weight ratio of greater than 1:1.

Electrodes comprising blended active materials

A process of preparing a lithium metal phosphate includes contacting a water-soluble metal precursor, a water-insoluble metal precursor, and a phosphate precursor in an acidic aqueous medium; to form a reaction mixture; precipitating from the reaction mixture a metal phosphate; collecting the metal phosphate; combining the metal phosphate with a lithium precursor; and calcining the combined metal phosphate and lithium precursor at elevated temperature to form a lithium metal phosphate; wherein a mol ratio of water-soluble metal precursor to water-insoluble metal precursor is from 0.5:99.5 to 99.5:0.5.

Method of preparing lithium metal phosphate cathode materials

A cathode active material includes a lithium manganese (Mn) iron (Fe) phosphate, wherein a mol ratio of Mn:Fe is from about 3:7 to about 9:1, the lithium manganese iron phosphate is an olivine structure, and the Mn and Fe in the olivine are present in an partially ordered or partially disordered sublattice.

High energy density olivine-based cathode materials

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

Described are embodiments of a lithium metal phosphate production methods and systems. The systems and methods can include combining lithium extraction from spodumene, lithium recycling from lithium ion battery ('LIB') black mass, and/or lithium metal phosphate synthesis from metal phosphates.

Lithium metal phosphate electrode manufacturing

Provided herein is an apparatus. The apparatus can include a battery cell. The battery cell can include an electrode. The apparatus can include a first solid electrolyte interphase on the electrode. The first solid electrolyte interphase can be formed from a first electrolyte having a salt concentration greater than or equal to 1 M. The apparatus can include a second solid electrolyte interphase on the electrode. The second solid electrolyte interphase can be formed from a second electrolyte different from the first electrolyte.

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Santa Clara, CA, United States of America

Ki Tae Park