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1. WO2017188021 - ELECTROCHEMICAL ELEMENT ELECTRODE AND LITHIUM ION SECONDARY BATTERY

Publication Number WO/2017/188021
Publication Date 02.11.2017
International Application No. PCT/JP2017/015233
International Filing Date 14.04.2017
IPC
H01M 4/74 2006.01
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
64Carriers or collectors
70characterised by shape or form
72Grids
74Meshes or woven material; Expanded metal
H01G 11/70 2013.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
11Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer capacitors; Processes for the manufacture thereof or of parts thereof
66Current collectors
70characterised by their structure
H01M 4/13 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
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
H01M 4/48 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
48of inorganic oxides or hydroxides
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 10/0587 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
0587of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
CPC
H01G 11/70
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
11Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors [EDLCs]; Processes specially adapted for the manufacture thereof or of parts thereof
66Current collectors
70characterised by their structures
H01M 10/04
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 10/052
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 10/0587
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
0587of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 4/13
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
13Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
H01M 4/48
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
48of inorganic oxides or hydroxides
Applicants
  • マクセルホールディングス株式会社 MAXELL HOLDINGS, LTD. [JP]/[JP]
Inventors
  • 阿部 敏浩 Abe, Toshihiro
  • 橋本 裕志 HASHIMOTO, Yuji
  • 阿部 浩史 Abe, Hiroshi
  • 石澤 政嗣 ISHIZAWA, Seiji
Agents
  • 三輪 鐵雄 MIWA, Tetsuo
  • 三輪 英樹 MIWA, Hideki
Priority Data
2016-08834826.04.2016JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ELECTROCHEMICAL ELEMENT ELECTRODE AND LITHIUM ION SECONDARY BATTERY
(FR) ÉLECTRODE D'ÉLÉMENT ÉLECTROCHIMIQUE ET BATTERIE SECONDAIRE AU LITHIUM-ION
(JA) 電気化学素子用電極およびリチウムイオン二次電池
Abstract
(EN)
Provided are a highly reliable electrochemical element electrode and a lithium ion secondary battery having said electrode. The electrochemical element electrode according to the present invention is used for a positive electrode or a negative electrode of an electrochemical element having a wound electrode body, and includes: a main section where an electrode mixture layer containing an electrode active material is present on one surface or both surfaces of a current collector; and a tab section where the electrode mixture layer is not present on both surfaces of the current collector. The main section in plan view is a rectangle having a pair of short sides and a pair of long sides. The current collector has multiple through holes that extend from one surface to the other surface, and the multiple through holes are regularly arranged. A straight line connecting one through hole with another through hole that is closest to the one through hole is not present within the range of 0° ± 20° from the direction parallel to the short side of the main section. The lithium ion secondary battery according to the present invention has a wound electrode body, and at least the positive electrode is the electrochemical device electrode according to the present invention.
(FR)
L'invention porte sur une électrode d'élément électrochimique hautement fiable et sur une batterie secondaire au lithium-ion ayant ladite électrode. L'électrode d'élément électrochimique selon la présente invention est utilisée pour une électrode positive ou une électrode négative d'un élément électrochimique ayant un corps d'électrode enroulé, et comprend : une section principale où une couche de mélange d'électrode contenant une matière active d'électrode est présente sur une surface ou sur les deux surfaces d'un collecteur de courant ; et une section de languette où la couche de mélange d'électrode est absente des deux surfaces du collecteur de courant. La section principale en vue en plan est un rectangle ayant une paire de côtés courts et une paire de côtés longs. Le collecteur de courant comporte de multiples trous traversants qui s'étendent d'une surface à l'autre surface, et les multiples trous traversants sont agencés régulièrement. Une ligne droite reliant un trou traversant à un autre trou traversant qui est le plus proche dudit trou traversant n'est pas présente dans la plage de 0° ± 20° par rapport à la direction parallèle au côté court de la section principale. La batterie secondaire au lithium-ion selon la présente invention a un corps d'électrode enroulé, et au moins l'électrode positive est l'électrode de dispositif électrochimique selon la présente invention.
(JA)
信頼性に優れた電気化学素子用電極と、前記電極を有するリチウムイオン二次電池とを提供する。 本発明の電気化学素子用電極は、巻回電極体を有する電気化学素子の正極または負極に使用されるものであって、電極活物質を含有する電極合剤層を集電体の片面または両面に有する本体部と、前記集電体の両面に電極合剤層を有しないタブ部とを有しており、前記本体部は、平面視で、1対の短辺と1対の長辺とを有する長方形であり、前記集電体は、片面から他面に貫通する複数の貫通孔を有しており、かつ前記複数の貫通孔は規則的に配置されており、1つの貫通孔と、前記1つの貫通孔と最も近接する他の貫通孔とを結ぶ直線が、前記本体部の短辺に平行な方向から0°±20°の範囲内に存在していないものである。本発明のリチウムイオン二次電池は、巻回電極体を有し、少なくとも正極が、本発明の電気化学素子用電極である。
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