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1. JP2013140672 - SEALED BATTERY

Office
Japon
Numéro de la demande 2010073291
Date de la demande 26.03.2010
Numéro de publication 2013140672
Date de publication 18.07.2013
Type de publication A
CIB
H01M 2/34
HÉLECTRICITÉ
01ÉLÉMENTS ÉLECTRIQUES FONDAMENTAUX
MPROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES
2Détails de construction ou procédés de fabrication des parties non actives
20Connexions conductrices du courant pour les éléments
34avec des moyens pour empêcher un usage ou une décharge indésirables
H01M 2/12
HÉLECTRICITÉ
01ÉLÉMENTS ÉLECTRIQUES FONDAMENTAUX
MPROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES
2Détails de construction ou procédés de fabrication des parties non actives
12Events ou autres aménagements mécaniques pour faciliter l'échappement des gaz
H01M 2/26
HÉLECTRICITÉ
01ÉLÉMENTS ÉLECTRIQUES FONDAMENTAUX
MPROCÉDÉS OU MOYENS POUR LA CONVERSION DIRECTE DE L'ÉNERGIE CHIMIQUE EN ÉNERGIE ÉLECTRIQUE, p.ex. BATTERIES
2Détails de construction ou procédés de fabrication des parties non actives
20Connexions conductrices du courant pour les éléments
22Connexions fixes, c. à d. non prévues pour être déconnectées
26Connexions d'électrodes
CPC
H01M 2200/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2200Safety devices for primary or secondary batteries
H01M 2200/20
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2200Safety devices for primary or secondary batteries
20Pressure-sensitive devices
Y02E 60/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
10Energy storage using batteries
H01M 50/171
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
147Lids or covers
166characterised by the methods of assembling casings with lids
171using adhesives or sealing agents
H01M 50/3425
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
30Arrangements for facilitating escape of gases
342Non-re-sealable arrangements
3425in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
H01M 50/167
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
147Lids or covers
166characterised by the methods of assembling casings with lids
167by crimping
Déposants 日立マクセルエナジー株式会社
Inventeurs 渡辺 修
森本 充
Mandataires 上羽 秀敏
松山 隆夫
坂根 剛
竹添 忠
鈴木 一晃
Titre
(EN) SEALED BATTERY
(JA) 密閉型電池
Abrégé
(EN)

PROBLEM TO BE SOLVED: To obtain a configuration capable of reducing variation of pressure value in a battery the current of which is interrupted, in a sealed battery having a current interruption function.

SOLUTION: A sealed battery (1) includes a bottomed cylindrical battery can (10) in which an electrode body (40) is housed, a cleavage vent (22) which is arranged so as to cover the opening side of the battery can (10) and is deformed and cleaved by pressure rise in the battery can (10), and an interruption vent (25) connected electrically with the electrode body (40) and bonded to a portion of the cleavage vent (22). The interruption vent (25) is provided with a thin part (26) having a connection (27) being bonded to the cleavage vent (22). A groove (26b) for reducing the shear strength of the thin part (26) below that of a weld zone (50) is formed in the thin part (26) to surround the connection (27).

COPYRIGHT: (C)2013,JPO&INPIT


(JA)

【課題】電流遮断機能を備えた密閉型電池において、電流が遮断される電池内部の圧力値のばらつきを低減可能な構成を得る。
【解決手段】密閉形電池(1)は、電極体(40)が収納される有底筒状の電池缶(10)と、該電池缶(10)の開口側を覆うように配置され、該電池缶(10)内の圧力上昇によって変形し開裂する開裂ベント(22)と、該開裂ベント(22)の電池缶内方側に配置され、前記電極体(40)に電気的に接続されるとともに該開裂ベント(22)の一部にも接合される遮断ベント(25)と、を備えている。遮断ベント(25)には、開裂ベント(22)と接合される接続部(27)を有する薄肉部(26)を設ける。薄肉部(26)には、接続部(27)を囲むように、溶接部分(50)よりも薄肉部(26)のせん断強度を低下させる溝部(26b)が形成されている。
【選択図】図2


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