US 11,670,771 B2
Battery including tab tape covering electrode tab
Masayoshi Yoshida, Osaka (JP); and Oose Okutani, Hyogo (JP)
Assigned to SANYO Electric Co., Ltd., Daito (JP)
Appl. No. 16/975,899
Filed by SANYO Electric Co., Ltd., Daito (JP)
PCT Filed Feb. 1, 2019, PCT No. PCT/JP2019/003609
§ 371(c)(1), (2) Date Aug. 26, 2020,
PCT Pub. No. WO2019/167544, PCT Pub. Date Sep. 6, 2019.
Claims priority of application No. JP2018-035677 (JP), filed on Feb. 28, 2018.
Prior Publication US 2021/0005869 A1, Jan. 7, 2021
Int. Cl. H01M 4/58 (2010.01); H01M 4/505 (2010.01); H01M 4/60 (2006.01); H01M 50/534 (2021.01); H01M 50/533 (2021.01); H01M 50/586 (2021.01); H01M 50/595 (2021.01); H01M 50/54 (2021.01); H01M 50/593 (2021.01)
CPC H01M 4/58 (2013.01) [H01M 4/505 (2013.01); H01M 4/60 (2013.01); H01M 50/533 (2021.01); H01M 50/534 (2021.01); H01M 50/586 (2021.01); H01M 50/595 (2021.01); H01M 50/54 (2021.01); H01M 50/593 (2021.01)] 2 Claims
OG exemplary drawing
 
1. A battery comprising: a positive electrode; a negative electrode; a positive electrode tab electrically connected to the positive electrode; a negative electrode tab electrically connected to the negative electrode; and a positive electrode tab tape covering the positive electrode tab,
wherein the positive electrode tab tape has a multilayer structure in which an adhesive layer and a substrate layer primarily formed from an organic material are laminated in this order from an electrode tab side,
the adhesive layer contains an adhesive material and a reactive material which generates an endothermic reaction that involves a chemical change in the reactive material at a temperature that is lower than a heat resistance temperature of the organic material and within a range from 100° C. to 350° C.,
the adhesive material includes at least one of a rubber-based resin, an acrylic-based resin, and a silicone-based resin,
the reactive material includes at least one of aluminum hydroxide, sodium hydrogen carbonate, and calcium sulfate dihydrate, and
the adhesive layer is in direct contact with the positive electrode tab.