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1. (WO2019044238) NON-AQUEOUS ELECTROLYTE SECONDARY CELL
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Pub. No.: WO/2019/044238 International Application No.: PCT/JP2018/027024
Publication Date: 07.03.2019 International Filing Date: 19.07.2018
IPC:
H01M 10/0567 (2010.01) ,H01M 4/505 (2010.01) ,H01M 4/525 (2010.01) ,H01M 10/052 (2010.01) ,H01M 10/0569 (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
36
Selection of substances as active materials, active masses, active liquids
48
of inorganic oxides or hydroxides
50
of manganese
505
of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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
48
of inorganic oxides or hydroxides
52
of nickel, cobalt or iron
525
of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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
052
Li-accumulators
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
0569
characterised by the solvents
Applicants:
パナソニックIPマネジメント株式会社 PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. [JP/JP]; 大阪府大阪市中央区城見2丁目1番61号 1-61, Shiromi 2-chome, Chuo-ku, Osaka-shi, Osaka 5406207, JP
Inventors:
辻 智輝 TSUJI Tomoki; --
仲 淵龍 ZHONG Yuanlong; --
Agent:
鎌田 健司 KAMATA Kenji; JP
前田 浩夫 MAEDA Hiroo; JP
Priority Data:
2017-16527430.08.2017JP
Title (EN) NON-AQUEOUS ELECTROLYTE SECONDARY CELL
(FR) ACCUMULATEUR À ÉLECTROLYTE NON AQUEUX
(JA) 非水電解質二次電池
Abstract:
(EN) A non-aqueous electrolyte secondary cell provided with a positive electrode, a negative electrode, and a non-aqueous electrolyte. The positive electrode has a positive electrode active material that contains composite oxide particles which include Ni, Co, Li, and at least one of Mn and Al, and in which the proportion of Ni in relation to the total number of moles of metal elements excluding Li is at least 80 mol%. In the composite oxide particles, the ratio (B/A) of the post-particle-compression-test BET specific surface area (B) with respect to the pre-particle-compression-test BET specific surface area (A) is 1.0-3.0. The non-aqueous electrolyte contains a non-aqueous solvent and a cyclic carboxylic anhydride such as diglycolic anhydride.
(FR) La présente invention concerne un accumulateur à électrolyte non aqueux comprenant une électrode positive, une électrode négative et un électrolyte non aqueux. L'électrode positive a un matériau actif d'électrode positive qui contient des particules d'oxyde composite qui comprennent Ni, Co, Li, et Mn et/ou Al, et dans lequel la proportion de Ni par rapport au nombre total de moles d'éléments métalliques à l'exclusion de Li est d'au moins 80 % en moles. Dans les particules d'oxyde composite, le rapport (B/A) de la surface spécifique BET de test de précompression de particules (B) par rapport à la surface spécifique BET de test de précompression de particules (A) est de 1,0 à 3,0. L'électrolyte non aqueux contient un solvant non aqueux et un anhydride carboxylique cyclique tel que l'anhydride diglycolique.
(JA) 非水電解質二次電池は、正極と、負極と、非水電解質とを備え、前記正極は、Ni、Co及びLiを含み、且つMn及びAlのうち少なくともいずれか一方を含む複合酸化物粒子であって、Liを除く金属元素の総モル数に対するNiの割合が80モル%以上である複合酸化物粒子を含む正極活物質を有し、前記複合酸化物粒子は、粒子圧縮試験前のBET比表面積(A)と粒子圧縮試験後のBET比表面積(B)の比(B/A)が、1.0以上3.0以下であり、前記非水電解質は、ジグリコール酸無水物等の環状カルボン酸無水物及び非水溶媒を含む。
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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, JO, 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)