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:
Aug. 25, 2015
Filed:
Oct. 20, 2011
Richard J. Marshall, Carstairs, CA;
Robert Yetman, West Roxbury, MA (US);
Richard J. Marshall, Carstairs, CA;
Robert Yetman, West Roxbury, MA (US);
ENGINEERED POWER LTD., Calgary, Alberta, CA;
Abstract
A battery adapted to operate at low (typically ambient) temperatures for a short initial period and thereafter at higher temperatures. A Li—Mg alloy anode is provided, including up to 25% magnesium, in a liquid thionyl chloride bath which acts as the cathode. A thin, substantially pure lithium layer is applied to a surface of the Li—Mg anode, preferably of a thickness in the range of 0.0019 to 0.0025 inch to allow obtaining of sufficiently high power and voltage output at lower temperatures for a short period where at such lower temperatures the required voltage and power would not otherwise be available from a Li—Mg anode. Thereafter, the battery may be used in, and exposed to, higher temperatures where at such temperatures the necessary voltage and power from the remaining Li—Mg alloy anode is then available.