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1. WO2012105553 - CYLINDRICAL SECONDARY BATTERY

Publication Number WO/2012/105553
Publication Date 09.08.2012
International Application No. PCT/JP2012/052135
International Filing Date 31.01.2012
IPC
H01M 2/26 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
20Current-conducting connections for cells
22Fixed connections, i.e. not intended for disconnection
26Electrode connections
H01M 10/04 2006.1
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 10/0587 2010.1
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
H01M 10/0431
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
0431Cells with wound or folded electrodes
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 50/533
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
531Electrode connections inside a battery casing
533characterised by the shape of the leads or tabs
H01M 50/538
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
531Electrode connections inside a battery casing
538Connection of several leads or tabs of wound or folded electrode stacks
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
Y02P 70/50
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
PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
70Climate change mitigation technologies in the production process for final industrial or consumer products
50Manufacturing or production processes characterised by the final manufactured product
Applicants
  • 日立ビークルエナジー株式会社 HITACHI VEHICLE ENERGY, LTD. [JP]/[JP] (AllExceptUS)
  • 破戸 裕樹 HATO, Yuki [JP]/[JP] (UsOnly)
  • 篠原 英毅 SHINOHARA, Hideki [JP]/[JP] (UsOnly)
  • 佐々木 孝 SASAKI, Takashi [JP]/[JP] (UsOnly)
Inventors
  • 破戸 裕樹 HATO, Yuki
  • 篠原 英毅 SHINOHARA, Hideki
  • 佐々木 孝 SASAKI, Takashi
Agents
  • 永井 冬紀 NAGAI, Fuyuki
Priority Data
2011-01774531.01.2011JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) CYLINDRICAL SECONDARY BATTERY
(FR) BATTERIE SECONDAIRE CYLINDRIQUE
(JA) 円筒形二次電池
Abstract
(EN) This cylindrical secondary battery includes: an electrode group formed by winding a positive electrode and a negative electrode with a separator therebetween; a current-collecting member formed by connecting a wound and layered conductive lead of at least one of the positive electrode and the negative electrode; and a battery container containing the electrode group and the current-collecting member and having an electrolytic solution injected thereto. The conductive lead is formed so as to be thinner toward a tip part from a root part; and when Δp is the tolerance of the pitch of the conductive lead and Δw is the difference of width dimension between the root part and the tip part of the conductive lead, the pitch of the conductive lead is set so as to make the variations of values obtained by dividing standard deviations of the number of layers of the conductive lead (which has been wound around the current-collecting member) by the average value of the standard deviations of the number of layers of the conductive lead, which is in the proper range as a predetermined value or less, and the width of said proper range is greater than the sum of Δp and Δw.
(FR) La présente invention concerne une batterie secondaire cylindrique comprenant : un groupe d'électrodes formé en enroulant une électrode positive et une électrode négative avec interposition entre celles-ci d'un séparateur ; un élément collecteur de courant formé en connectant un conducteur enroulé et stratifié constitué d'au moins une électrode positive et de l'électrode négative ; et un récipient de batterie contenant le groupe d'électrodes et l'élément collecteur de courant et dans laquelle est injectée une solution électrolytique. Le conducteur est formé de manière à s'amincir d'une partie formant racine vers une partie d'extrémité ; lorsque Δp est la tolérance du pas du conducteur et Δw est la différence de largeur entre la partie formant racine et la partie d'extrémité du conducteur, le pas du conducteur est défini de manière à faire en sorte que les variations des valeurs obtenues en divisant les écarts types du nombre de couches du conducteur (ayant été enroulées autour de l'élément collecteur de courant) par la valeur moyenne des écarts types du nombre de couches du conducteur soient inférieures ou égales à une valeur prédéterminée se situant dans une gamme appropriée, et que la largeur de ladite plage appropriée soit supérieure à la somme de Δp et Δw.
(JA)  円筒形二次電池は、正極電極と負極電極とがセパレータを介して捲回された電極群と、正極電極および負極電極の少なくとも一方の導電リードが捲回され重なって接合された集電部材と、電極群および集電部材が収容され、電解液が注入された電池容器とを備える。導電リードが根元部から先端部に向けて先細に形成され、導電リードのピッチの公差をΔp、導電リードの根元部と先端部の幅寸法の差をΔwとしたとき、導電リードのピッチは、導電リードを集電部材に捲回した場合の導電リードの重なり枚数の標準偏差を導電リードの重なり枚数の標準偏差の平均値で除した数値の変動幅が所定値以下である適正領域内となるように設定され、適正領域の範囲は、ΔpとΔwの和よりも大きい。
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