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Patent Searching and Data


Title:
PARTITION MEMBER AND ASSEMBLED BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/107562
Kind Code:
A1
Abstract:
A partition member has a thickness direction and a planar direction orthogonal to the thickness direction, and partitions between unit cells constituting an assembled cell in the thickness direction or between unit cells constituting the assembled cell and a member other than the unit cells. The partition member includes an inner encapsulation body that can hold a liquid, and an outer package body that accommodates the inner encapsulation body and the liquid. The surface area S1 of the internal capsule body and the surface area S2 of a gap between the outer package body and the internal capsule body when the outer package body and the internal capsule body are seen in a plan view from the thickness direction satisfy the relationship of formula 1, and the volume V1 of the liquid and the volume V2 of the internal capsule body satisfy the relationship of formula 2. Formula 1: S1/(S1 + S2) ≤ 0.99 Formula 2: 0.02 ≤ V1/V2 ≤ 1.90

Inventors:
HONDA, Tatsuhiko (1-1 Marunouchi 1-chome, Chiyoda-k, Tokyo 51, 〒1008251, JP)
MARU, Naoto (1-1 Marunouchi 1-chome, Chiyoda-k, Tokyo 51, 〒1008251, JP)
KAWAI, Tomohiro (1-1 Marunouchi 1-chome, Chiyoda-k, Tokyo 51, 〒1008251, JP)
SOGA, Iwao (1-1 Marunouchi 1-chome, Chiyoda-k, Tokyo 51, 〒1008251, JP)
Application Number:
JP2018/044273
Publication Date:
June 06, 2019
Filing Date:
November 30, 2018
Export Citation:
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Assignee:
MITSUBISHI CHEMICAL CORPORATION (1-1 Marunouchi 1-chome, Chiyoda-ku Tokyo, 51, 〒1008251, JP)
International Classes:
H01M10/6555; H01M2/10; H01M10/613; H01M10/625; H01M10/647; H01M10/653; H01M10/6567
Attorney, Agent or Firm:
IP FIRM SHUWA (Acropolis 21 Bldg. 8th Floor, 4-10 Higashi Nihonbashi 3-chome, Chuo-k, Tokyo 04, 〒1030004, JP)
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