US 12,237,519 B2
Packaging material for batteries
Daisuke Yasuda, Tokyo (JP); Atsuko Takahagi, Tokyo (JP); Rikiya Yamashita, Tokyo (JP); and Shinichiro Nakamura, Tokyo (JP)
Assigned to DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Filed by DAI NIPPON PRINTING CO., LTD., Tokyo (JP)
Filed on Sep. 12, 2022, as Appl. No. 17/942,495.
Application 17/942,495 is a continuation of application No. 15/514,637, granted, now 11,476,524, previously published as PCT/JP2015/076902, filed on Sep. 24, 2015.
Claims priority of application No. 2014-202463 (JP), filed on Sep. 30, 2014; and application No. 2014-202465 (JP), filed on Sep. 30, 2014.
Prior Publication US 2023/0024359 A1, Jan. 26, 2023
Int. Cl. H01M 50/124 (2021.01); B32B 7/04 (2019.01); B32B 7/12 (2006.01); B32B 15/06 (2006.01); B32B 15/082 (2006.01); B32B 15/085 (2006.01); B32B 15/088 (2006.01); B32B 15/09 (2006.01); B32B 15/092 (2006.01); B32B 15/095 (2006.01); B32B 15/098 (2006.01); B32B 15/20 (2006.01); B32B 25/08 (2006.01); B32B 25/16 (2006.01); B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/28 (2006.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); B32B 27/38 (2006.01); B32B 27/40 (2006.01); B32B 27/42 (2006.01); H01G 11/78 (2013.01); H01M 50/116 (2021.01); H01M 50/119 (2021.01); H01M 50/121 (2021.01); H01M 50/129 (2021.01); H01M 50/131 (2021.01); H01M 50/133 (2021.01); H01M 50/183 (2021.01); H01M 50/186 (2021.01); H01M 50/193 (2021.01)
CPC H01M 50/124 (2021.01) [B32B 7/04 (2013.01); B32B 7/12 (2013.01); B32B 15/06 (2013.01); B32B 15/082 (2013.01); B32B 15/085 (2013.01); B32B 15/088 (2013.01); B32B 15/09 (2013.01); B32B 15/092 (2013.01); B32B 15/095 (2013.01); B32B 15/098 (2013.01); B32B 15/20 (2013.01); B32B 25/08 (2013.01); B32B 25/16 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/28 (2013.01); B32B 27/283 (2013.01); B32B 27/302 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/322 (2013.01); B32B 27/325 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/38 (2013.01); B32B 27/40 (2013.01); B32B 27/42 (2013.01); H01G 11/78 (2013.01); H01M 50/116 (2021.01); H01M 50/119 (2021.01); H01M 50/121 (2021.01); H01M 50/129 (2021.01); H01M 50/133 (2021.01); H01M 50/183 (2021.01); H01M 50/186 (2021.01); H01M 50/193 (2021.01); B32B 2250/04 (2013.01); B32B 2250/05 (2013.01); B32B 2255/06 (2013.01); B32B 2255/10 (2013.01); B32B 2255/205 (2013.01); B32B 2255/26 (2013.01); B32B 2270/00 (2013.01); B32B 2274/00 (2013.01); B32B 2307/20 (2013.01); B32B 2307/202 (2013.01); B32B 2307/206 (2013.01); B32B 2307/31 (2013.01); B32B 2307/50 (2013.01); B32B 2307/518 (2013.01); B32B 2307/584 (2013.01); B32B 2307/71 (2013.01); B32B 2307/714 (2013.01); B32B 2307/7244 (2013.01); B32B 2307/7246 (2013.01); B32B 2307/732 (2013.01); B32B 2307/746 (2013.01); B32B 2307/752 (2013.01); B32B 2457/10 (2013.01); B32B 2553/00 (2013.01); B32B 2605/00 (2013.01); H01M 50/1245 (2021.01); H01M 50/131 (2021.01); H01M 2220/20 (2013.01); Y02E 60/13 (2013.01); Y02T 10/70 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A battery packaging material comprising a laminate including at least a base material layer, an adhesive layer, a metal layer and a sealant layer laminated in this order, wherein:
the base material layer includes:
a resin layer A formed of a thermoplastic resin having a volume resistivity of 1×1016 Ω·cm or more, the thermoplastic resin being at least one of polyethylene terephthalate and polybutylene terephthalate, and
another resin layer that includes a polyamide resin,
a water absorption ratio of the thermoplastic resin that forms the resin layer A is 0.5% or less, and
a wet tension of the surface of the resin layer A is 35 mN/m or less as measured under an atmosphere at 23° C. and 50% RH.