Dow Global Technolgoies LLC

Jiangsu Hengtron Nanotech Co., Ltd.

Jamie L Cohen

Deidre A Strand

Bin Li

Steven Kaye

Thierry Drezen

Shrikant N Khot

David R Wilson

William Jack Kruper, Jr

Ravi B Shankar

Peter M Margl

Ing-Feng Hu

Thomas D Gregory

Jing Jin

Houxiang Tang

Andrew J Pasztor, Jr

Matthew Martin Yonkey

Murali G Theivanayagam

Xindi Yu

Stacie L Santhany

Mark D Newsham

Jeremy R Stajdl

Diedre A Strand

Christopher P Rentsch

Steven S Kaye

Particulate LMFP cathode materials having high manganese contents and small amounts of dopant metals are disclosed. These cathode materials are made by milling a mixture of precursor materials in a wet or dry milling process. Preferably, off-stoichiometric amounts of starting materials are used to make the cathode materials. Unlike other high manganese LMFP materials, these cathode materials provide high specific capacities, very good cycle life and high energies even at high discharge rates.

LMFP cathode materials with improved electrochemical performance

A battery electrolyte solution contains from 0.01 to 80% by weight of an aromatic phosphorus compound. The aromatic phosphorus compound provides increased thermal stability for the electrolyte, helping to reduce thermal degradation, thermal runaway reactions and the possibility of burning. The aromatic phosphorus compound has little adverse impact on the electrical properties of the battery, and in some cases actually improves battery performance.

Battery electrolyte solutions containing aromatic phosphorus compounds

Growing community of inventors

Midland, MI, United States of America

Jamie L Cohen