Title:
BATTERY AND MANUFACTURING METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2022124192
Kind Code:
A
Abstract:
To achieve a battery capable of obtaining high performance by suppressing the peeling between a current collector and an electrode mixture even when an electrode is thickened by increasing the amount of electrode mixture.SOLUTION: An electrode 10 is used as a positive electrode or a negative electrode of a battery, the electrode 10 including a current collector 11, having opposed main surfaces 11a, 11b and a through-hole 11c penetrating therethrough, and an electrode mixture 12 provided in both main surfaces 11a, 11b and the through-hole 11c, or in the through-hole 11c. When the thickness of the current collector 11 in a direction S in which the two opposed main surfaces 11a, 11b of the current collector 11 is denoted as d1, and the thickness of the electrode 10 in a direction S is denoted as d2, d1≤d2, d2≥150 μm, and a relationship d1/d2≥0.2 are satisfied. Thereby, even when the electrode mixture 12 is made thick, the peeling of the electrode mixture 12 from the current collector 11 and the resulting resistance increase, etc. are suppressed, and the electrode 10 can be bent and a high-performance battery is achieved.SELECTED DRAWING: Figure 4
Inventors:
ITO RYUJI
MANO TSUKASA
IKEYAMA MISAKO
HANAMURA REI
MANO TSUKASA
IKEYAMA MISAKO
HANAMURA REI
Application Number:
JP2021021809A
Publication Date:
August 25, 2022
Filing Date:
February 15, 2021
Export Citation:
Assignee:
FDK CORP
International Classes:
H01M4/02; H01G11/26; H01G11/30; H01G11/70; H01M4/04; H01M4/06; H01M4/08; H01M4/13; H01M4/139; H01M4/40; H01M4/50; H01M4/70; H01M6/16; H01M50/531; H01M50/543
Attorney, Agent or Firm:
Fuso International Patent Office
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