The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 15, 2019
Filed:
May. 26, 2017
Toyota Motor Engineering & Manufacturing North America, Inc., Erlanger, KY (US);
Deakin University, Geelong, Victoria, AU;
Toyota Jidosha Kabushiki Kaisha, Toyota-Cho, Aichi-Ken, JP;
Nikhilendra Singh, Ypsilanti, MI (US);
Timothy S. Arthur, Ann Arbor, MI (US);
Kensuke Takechi, Ann Arbor, MI (US);
Patrick Howlett, Box Hill South, AU;
Maria Forsyth, Ashburton, AU;
Robert Kerr, Croydon South, AU;
Fuminori Mizuno, Miyoshi, JP;
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Deakin University, Geelong, Victoria, AU;
Abstract
An electrolyte for Li-ion and other secondary electrochemical cells includes an FSI anion and at least one of methyltriethylphosphonium; trimethylisobutylphosphonium; methyltributylphosphonium; and trihexyltetradecylphosphonium. The electrolyte uniquely enables stable cell cycling even when water is present in the electrolyte at levels as high as 5000 ppm. Methyltriethylphosphonium and trimethylisobutylphosphonium-containing electrolytes are particularly effective in this water-stabilizing capacity.