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. 28, 2012
Filed:
Mar. 02, 2009
Viet VU, Carl Junction, MO (US);
Ramanathan Thillaiyan, Webb City, MO (US);
Mai Sayarath, Webb City, MO (US);
Ernest Mdzebet, Joplin, MO (US);
Umamaheswari Viswanathan, Webb City, MO (US);
Viet Vu, Carl Junction, MO (US);
Ramanathan Thillaiyan, Webb City, MO (US);
Mai Sayarath, Webb City, MO (US);
Ernest Mdzebet, Joplin, MO (US);
Umamaheswari Viswanathan, Webb City, MO (US);
Eaglepicher Technologies, LLC, Joplin, MO (US);
Abstract
An improved cathode suitable for lithium-sulfur batteries, a battery including the cathode, and a battery including a separator containing inorganic fillers are disclosed. The cathode includes sulfur and a metal oxide and optionally includes an additional polymeric material. The metal oxide reduces dissolution of sulfur at the cathode and reduces sulfur-containing deposits on the battery anode, thereby providing a battery with relatively high energy density and good partial discharge performance. The separator also reduces unwanted diffusion of sulfur species.