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1. (WO2013161083) NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF FABRICATING SAME
PCT Biblio. Data
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Pub. No.:
WO/2013/161083
International Application No.:
PCT/JP2012/061456
Publication Date:
31.10.2013
International Filing Date:
27.04.2012
IPC:
H01M 10/0567
(2010.01),
H01M 4/04
(2006.01),
H01M 4/13
(2010.01),
H01M 10/058
(2010.01)
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
056
characterized by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564
the electrolyte being constituted of organic materials only
0566
Liquid materials
0567
characterised by the additives
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
04
Processes of manufacture in general
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
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
Applicants:
TOYOTA JIDOSHA KABUSHIKI KAISHA
[JP/JP]; 1, Toyota-cho, Toyota-shi, Aichi 4718571 (JP)
(For All Designated States Except US)
.
MORITA, Masahiro
[JP/JP]; (JP)
(For US Only)
.
OYAMA, Yutaka
[JP/JP]; (JP)
(For US Only)
.
TSUBOUCHI, Takahiro
[JP/JP]; (JP)
(For US Only)
.
SAITO, Atsushi
[JP/JP]; (JP)
(For US Only)
.
OKADA, Yukihiro
[JP/JP]; (JP)
(For US Only)
Inventors:
MORITA, Masahiro
; (JP).
OYAMA, Yutaka
; (JP).
TSUBOUCHI, Takahiro
; (JP).
SAITO, Atsushi
; (JP).
OKADA, Yukihiro
; (JP)
Agent:
ABE Makoto
; Kyodo Patent Law Firm, 47KT Bldg., 10th Floor, 3-20-3, Marunouchi, Naka-ku, Nagoya-shi, Aichi 4600002 (JP)
Priority Data:
Title
(EN)
NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF FABRICATING SAME
(FR)
BATTERIE SECONDAIRE ÉLECTROLYTIQUE NON AQUEUSE ET SON PROCÉDÉ DE FABRICATION
(JA)
非水電解質二次電池およびその製造方法
Abstract:
(EN)
According to the present invention, provided is a non-aqueous electrolyte secondary battery in which a non-aqueous electrolyte including an overcharge additive is supplied. In a pore distribution curve which is measured with a mercury porosimeter, a positive electrode laminate layer which configures a positive electrode of the non-aqueous electrolyte secondary battery has a peak (A) of a differential pore capacity in a pore diameter range of 0.05-2µm and a peak (B) which is located further toward the small pore diameter side than the peak (A). The pore distribution curve further has a minimum (C) whereat the differential pore capacity is at a minimum value between the peak (A) and the peak (B). A ratio (X
C
/X
L
) between a differential pore capacity (X
L
) which is the greater of a differential pore capacity (X
A
) of the peak (A) or a differential pore capacity (X
B
) of the peak (B) and a differential pore capacity (X
C
) of the minimum (C) is 0.6 or greater.
(FR)
La présente invention concerne une batterie secondaire électrolytique non aqueuse dans laquelle un électrolyte non aqueux comportant une surcharge d'additif est amené. Dans une courbe de distribution de pores qui est mesurée par un porosimètre au mercure, une couche stratifiée d'électrode positive, qui configure une électrode positive de la batterie secondaire électrolytique non aqueuse, présente un pic (A) d'une capacité différentielle de pore dans une plage de diamètres de pores de 0,05-2 µm et un pic (B) plus éloigné en direction du côté du petit diamètre de pore que le pic (A). La courbe de distribution de pores présente en outre un minimum (C), la capacité différentielle de pore se situant à une valeur minimale comprise entre le pic (A) et le pic (B). Un rapport (X
C
/X
L
) entre une capacité différentielle de pore (X
L
) qui est supérieure à une capacité différentielle de pore (X
A
) du pic (A) ou une capacité différentielle de pore (X
B
) du pic (B) et une capacité différentielle de pore (X
C
) du minimum (C) est supérieur ou égal à 0,6.
(JA)
本発明により、過充電添加剤を含む非水電解質が供給された非水電解質二次電池が提供される。前記非水電解質二次電池の正極を構成する正極合材層は、水銀ポロシメータで測定される細孔分布曲線において、細孔径が0.05μm~2μmの範囲に微分細孔容量のピークAと該ピークAより小孔径側に位置するピークBとを有し、前記細孔分布曲線は、前記ピークAおよび前記ピークBの間において微分細孔容量が極小値となる極小点Cを有し、前記ピークAの微分細孔容量X
A
および前記ピークBの微分細孔容量X
B
のうち微分細孔容量の大きい方の微分細孔容量X
L
と、前記極小点Cの微分細孔容量X
C
との比(X
C
/X
L
)が0.6以上であることを特徴とする。
Designated States:
AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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, ML, MR, NE, SN, TD, TG).
Publication Language:
Japanese (
JA
)
Filing Language:
Japanese (
JA
)