US 12,278,381 B2
Laminate battery
Tomo Kitagawa, Sakai (JP); Hirotaka Mizuhata, Sakai (JP); Shunsuke Sata, Sakai (JP); and Akihito Yoshida, Sakai (JP)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Appl. No. 17/771,252
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
PCT Filed Sep. 16, 2020, PCT No. PCT/JP2020/035092
§ 371(c)(1), (2) Date Apr. 22, 2022,
PCT Pub. No. WO2021/079658, PCT Pub. Date Apr. 29, 2021.
Claims priority of application No. 2019-194506 (JP), filed on Oct. 25, 2019.
Prior Publication US 2022/0416332 A1, Dec. 29, 2022
Int. Cl. H01M 50/463 (2021.01); H01M 4/24 (2006.01); H01M 12/06 (2006.01); H01M 50/102 (2021.01)
CPC H01M 50/102 (2021.01) [H01M 12/06 (2013.01); H01M 50/463 (2021.01)] 8 Claims
OG exemplary drawing
 
1. A laminate battery comprising a positive electrode, a negative electrode, and a separator that are laminated in place within an enclosure member, wherein
the enclosure member is formed of a first plastic film and a second plastic film that are bonded together,
the positive electrode includes a first positive electrode and a second positive electrode, the first positive electrode is disposed to face the first plastic film, and the second positive electrode is disposed to face the second plastic film,
the separator includes a first separator and a second separator that are disposed between the first plastic film and the second plastic film, a peripheral portion of the first separator is welded to the first plastic film, and a peripheral portion of the second separator is welded to the second plastic film,
a space between the first separator and the first plastic film serves as a first positive electrode storage portion that stores the first positive electrode, and an outer periphery of the first positive electrode storage portion is formed by a welded portion of the first separator and the first plastic film,
a space between the second separator and the second plastic film serves as a second positive electrode storage portion that stores the second positive electrode, and an outer periphery of the second positive electrode storage portion is formed by a welded portion of the second separator and the second plastic film,
a space between the first separator and the second separator serves as a negative electrode storage portion that stores the negative electrode, and an outer periphery of the negative electrode storage portion is formed by a welded portion of the first plastic film and the second plastic film,
the negative electrode includes a particulate negative electrode active material, and
the first separator and the second separator are not welded to each other.