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1. WO2021060409 - ELECTRIC STORAGE ELEMENT AND METHOD FOR MANUFACTURING ELECTRIC STORAGE ELEMENT

Publication Number WO/2021/060409
Publication Date 01.04.2021
International Application No. PCT/JP2020/036125
International Filing Date 24.09.2020
IPC
H01M 10/04 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
04Construction or manufacture in general
H01M 4/58 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
58of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/052 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 10/0585 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
058Construction or manufacture
0585of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/10 2021.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
10Primary casings, jackets or wrappings of a single cell or a single battery
H01M 50/543 2021.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
50Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
50Current conducting connections for cells or batteries
543Terminals
Applicants
  • 積水化学工業株式会社 SEKISUI CHEMICAL CO., LTD. [JP]/[JP]
Inventors
  • 西野 友章 NISHINO Tomoaki
  • 瀬川 健 SEGAWA Ken
Agents
  • 中村 行孝 NAKAMURA Yukitaka
  • 朝倉 悟 ASAKURA Satoru
  • 浅野 真理 ASANO Makoto
  • 堀田 幸裕 HOTTA Yukihiro
  • 合田 幸平 GODA Kohei
Priority Data
2019-17478925.09.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ELECTRIC STORAGE ELEMENT AND METHOD FOR MANUFACTURING ELECTRIC STORAGE ELEMENT
(FR) ÉLÉMENT DE STOCKAGE ÉLECTRIQUE, ET PROCÉDÉ DE FABRICATION DE CELUI-CI
(JA) 蓄電素子及び蓄電素子の製造方法
Abstract
(EN)
An electric storage element 1 is provided with an outer package 7, an electrode body 5, and a tab 6. The outer package 7 comprises a first outer package material 40 and a second outer package material 50. The electrode body 5 is housed in a housing space 7a formed between the first outer package material 40 and the second outer package material 50, and comprises a plurality of first electrodes 10 and a plurality of second electrodes 20 that are stacked in a first direction d1. The tab 6 is electrically connected to the electrode body 5 via a connecting part 8, and extends in a second direction d2 that is non-parallel to the first direction d1 and that passes between the first outer package material 40 and the second outer package material 50. The value of the ratio of the length of the connecting part 8 along the second direction d2 with respect to the width of the connecting part 8 along a third direction d3 that is orthogonal to both the first direction d1 and the second direction d2 is 0.025-2.00.
(FR)
L'élément de stockage électrique (1) de l'invention est équipé d’un corps d'enveloppe (7), d’un corps d’électrode (5) et d’une patte (6). Le corps d'enveloppe (7) contient un premier matériau enveloppe (40) et un second matériau enveloppe (50). Le corps d’électrode (5) est admis dans un espace d'admission (7a) formé entre le premier matériau enveloppe (40) et le second matériau enveloppe (50), et contient une pluralité de premières électrodes (10) et une pluralité de secondes électrodes (20) stratifiées dans une première direction (d1). La patte (6) est électriquement connectée au corps d’électrode (5) et à une partie connexion (8), passe entre le premier matériau enveloppe (40) et le second matériau enveloppe (50), et se prolonge dans une seconde direction (d2) qui n'est pas parallèle à la première direction (d1). La valeur du rapport de la longueur de la partie connexion (8) suivant la seconde direction (d2), vis-à-vis de la largeur de la partie connexion (8) suivant une direction (d3) perpendiculaire à la fois à la première direction (d1) et à la seconde direction (d2), est supérieure ou égale à 0,025 et inférieure ou égale à 2,00.
(JA)
蓄電素子1は、外装体7と、電極体5と、タブ6と、を備える。外装体7は、第1外装材40及び第2外装材50を含む。電極体5は、第1外装材40と第2外装材50との間に形成される収容空間7aに収容され、第1方向d1に積層された複数の第1電極10及び複数の第2電極20を含む。タブ6は、電極体5と接続部8において電気的に接続して且つ第1外装材40及び第2外装材50の間を通過して第1方向d1と非平行な第2方向d2に延びる。接続部8の第2方向d2に沿った長さの、接続部8の第1方向d1及び第2方向d2の両方向に直交する第3方向d3に沿った幅に対する比の値は、0.025以上2.00以下である。
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