Hydrogels for aqueous lithium/air battery cells

27 Pages·2013·2.15 MB·English

US 20090311567A1
(19) United States
(12) Patent Application Publication (10) Pub. No.: US 2009/0311567 A1
Visco et al. (43) Pub. Date: Dec. 17, 2009
(54) HYDROGELS FOR AQUEOUS LITHIUM/AIR (22) Filed: Jun. 12, 2009
BATTERY CELLS
Related US. Application Data
(75) Inventors: Steven J. Visco, Berkeley, CA (60) Provisional application No. 61/061,972, ?led on Jun.
(US); Lutgard C. De Jonghe, 16, 2008, provisional application No. 61/078,294,
Lafayette, CA (US); Yevgeniy S. ?led on Jul. 3, 2008, provisional application No.
Nimon, Danville, CA (U S); Alexei 61/159,786, ?led on Mar. 12,2009.
Petrov, Walnut Creek, CA (U S);
Publication Classi?cation
Kirill Pridatko, Walnut Creek, CA
(Us) (51) Int. Cl.
H01M 4/02 (2006.01)
H01M 6/04 (2006.01)
Correspondence Address:
Weaver Austin Villeneuve & Sampson LLP (52) us. c1. ........................................ .. 429/27; 29/6231
PO. BOX 70250 (57) ABSTRACT
OAKLAND, CA 94612-0250 (US)
Li/ air battery cells are con?gurable to achieve very high
energy density. The cells include a protected a lithium metal
(73) Assignee: POLYPLUS BATTERY
or alloy anode and an aqueous catholyte in a cathode com
COMPANY, Berkeley, CA (US)
partment. In addition to the aqueous catholyte, components of
the cathode compartment include an air cathode (e.g., oxygen
(21) Appl. No.: 12/484,081 electrode) and a variety of other possible elements.
11
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