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:
May. 23, 2017
Filed:
Aug. 17, 2012
Steven J. Visco, Berkeley, CA (US);
Yevgeniy S. Nimon, Danville, CA (US);
Lutgard C. DE Jonghe, Lafayette, CA (US);
Alexei Petrov, Walnut Creek, CA (US);
Nikolay Goncharenko, Walnut Creek, CA (US);
Steven J. Visco, Berkeley, CA (US);
Yevgeniy S. Nimon, Danville, CA (US);
Lutgard C. De Jonghe, Lafayette, CA (US);
Alexei Petrov, Walnut Creek, CA (US);
Nikolay Goncharenko, Walnut Creek, CA (US);
POLYPLUS BATTERY COMPANY, Berkeley, CA (US);
Abstract
Aqueous Li/Air secondary battery cells are configurable to achieve high energy density and prolonged cycle life. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. The aqueous catholyte comprises an evaporative-loss resistant and/or polyprotic active compound or active agent that partakes in the discharge reaction and effectuates cathode capacity for discharge in the acidic region. This leads to improved performance including one or more of increased specific energy, improved stability on open circuit, and prolonged cycle life, as well as various methods, including a method of operating an aqueous Li/Air cell to simultaneously achieve improved energy density and prolonged cycle life.