Gm Global Technolgoy Operations, Inc.

Nicholas P W Pieczonka

Bob Ross Powell

Mark William Verbrugge

Xingcheng Xiao

Meng Jiang

Peng Lu

Jung-Hyun Kim

Jung Hyun Kim

A positive electrode composition includes a binder material; an electrically conductive material dispersible in the binder material and comprising a plurality of conductive carbon particles; an active material dispersible in the binder material and comprising a plurality of active particles; and a coating agent comprising one of a non-lithiated polymer, an at least partially-lithiated polymer, and a fully-lithiated polymer. The coating agent is disposed on and at least partially encapsulates at least one of: each of the plurality of conductive carbon particles and each of the plurality of active particles. A positive electrode of a lithium ion electrochemical cell includes a current collector comprising aluminum and a layer formed from the positive electrode composition and disposed on the current collector. A method of forming the positive electrode is also disclosed.

Positive electrode composition, a positive electrode of a lithiumion electrochemical cell, and a method of forming the positive electrode

A lithium-ion conducting, solid electrolyte is deposited on a thin, flexible, porous alumina membrane which is placed between co-extensive facing side surfaces of a porous, lithium-accepting, negative electrode and a positive electrode formed of a porous layer of particles of a compound of lithium, a transition metal element, and optionally, another metal element. A liquid electrolyte formed, for example, of LiPFdissolved in an organic solvent, infiltrates the electrode materials of the two porous electrodes for transport of lithium ions during cell operation. But the solid electrolyte permits the passage of only lithium ions, and the negative electrode is protected from damage by transition metal ions or other chemical species produced in the positive electrode of the lithium-ion cell.

Thin and flexible solid electrolyte for lithium-ion batteries

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Windsor, CA, United States of America

Nicholas P W Pieczonka