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1. (WO2018123088) WOUND-TYPE BATTERY
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Pub. No.: WO/2018/123088 International Application No.: PCT/JP2017/010542
Publication Date: 05.07.2018 International Filing Date: 15.03.2017
IPC:
H01M 10/0587 (2010.01) ,H01M 2/02 (2006.01) ,H01M 2/16 (2006.01) ,H01M 2/34 (2006.01) ,H01M 4/134 (2010.01) ,H01M 4/46 (2006.01) ,H01M 10/04 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
05
Accumulators with non-aqueous electrolyte
058
Construction or manufacture
0587
of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2
Constructional details, or processes of manufacture, of the non-active parts
02
Cases, jackets, or wrappings
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2
Constructional details, or processes of manufacture, of the non-active parts
14
Separators; Membranes; Diaphragms; Spacing elements
16
characterised by the material
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2
Constructional details, or processes of manufacture, of the non-active parts
20
Current-conducting connections for cells
34
with provision for preventing undesired use or discharge
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
134
Electrodes based on metals, Si or alloys
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
02
Electrodes composed of, or comprising, active material
36
Selection of substances as active materials, active masses, active liquids
38
of elements or alloys
46
Alloys based on magnesium or aluminium
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10
Secondary cells; Manufacture thereof
04
Construction or manufacture in general
Applicants:
マクセルホールディングス株式会社 MAXELL HOLDINGS, LTD. [JP/JP]; 京都府乙訓郡大山崎町大山崎小泉1番地 1, Koizumi, Oyamazaki, Oyamazaki-cho Otokuni-gun, Kyoto 6188525, JP
Inventors:
山中 英明 YAMANAKA, Hideaki; JP
阿部 敏浩 ABE, Toshihiro; JP
森下 拓磨 MORISHITA, Takuma; JP
畠山 敦 HATAKEYAMA, Atsushi; JP
Agent:
鈴木 一晃 SUZUKI Kazuaki; 大阪府大阪市中央区久太郎町3丁目1-29 本町武田ビル パトリオ特許事務所 PATRIO Patent Office, Hommachi Takeda Building, 1-29, Kyutaro-machi 3-chome, Chuo-ku, Osaka-shi, Osaka 5410056, JP
Priority Data:
2016-25600928.12.2016JP
Title (EN) WOUND-TYPE BATTERY
(FR) BATTERIE DE TYPE À ENROULEMENT
(JA) 巻回型電池
Abstract:
(EN) In this wound-type battery having an electrode body formed by winding a positive electrode, a negative electrode, and a separator, wherein the negative electrode includes a metal alloyed with Li, the degradation of battery characteristics is prevented by suppressing the occurrence of deflection inside the electrode body due to the expansion of the negative electrode. This wound-type battery 1 is provided with: an electrode body 30 formed into a flat cross-sectional shape by winding a positive electrode 31, a negative electrode 32, and a separator 33 overlapping one other; and a battery case 2 in which the electrode body 30 is encapsulated. The negative electrode 32 has: a negative electrode part 51 including an element that can be alloyed with Li; and negative electrode end parts 52. The electrode body 30 has a spacer part 53 that is located at least between the negative electrode end parts 52 adjacent to one other in the radial direction of the electrode body 30, and that has a greater thickness than that of the positive electrode 31.
(FR) La présente invention concerne une batterie de type à enroulement comprenant un corps d'électrode formé en enroulant une électrode positive, une électrode négative et un séparateur. L'électrode négative comprend un métal allié avec du Li, la dégradation des caractéristiques de la batterie est empêchée en supprimant l'apparition d'une déviation à l'intérieur du corps d'électrode en raison de la dilatation de l'électrode négative. Cette batterie de type à enroulement (1) est pourvue : d'un corps d'électrode (30) formé en une forme de section transversale plate en enroulant une électrode positive (31), une électrode négative (32) et un séparateur (33) se chevauchant mutuellement ; et un boîtier de batterie (2) dans lequel le corps d'électrode (30) est encapsulé. L'électrode négative (32) comporte: une partie d'électrode négative (51) comprenant un élément qui peut être allié avec du Li ; et des parties d'extrémité d'électrode négative (52). Le corps d'électrode (30) comporte une partie d'espacement (53) qui est située au moins entre les parties d'extrémité d'électrode négative (52) adjacentes l'une à l'autre dans la direction radiale du corps d'électrode (30), et qui a une épaisseur supérieure à celle de l'électrode positive (31).
(JA) 正極、負極及びセパレータを巻回してなる電極体を有し、前記負極がLiと合金化する金属を含む巻回型電池において、前記負極の膨張による電極体内部のたわみの発生を抑制することにより、電池特性の低下を防止する。巻回型電池1は、正極31、負極32及びセパレータ33を重ね合わせた状態で巻回することにより、断面扁平状に形成された電極体30と、電極体30が内部に封入された電池ケース2とを備える。負極32は、Liと合金化可能な元素を含む負極電極部51と、負極端部52とを有する。電極体30は、電極体30の径方向に隣り合う負極端部52の間の少なくとも一部に位置し、且つ、正極31の厚みよりも大きい厚みを有するスペーサ部53を有する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)