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1. (WO2019065566) POSITIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, MANUFACTURING METHOD FOR POSITIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY
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Pub. No.: WO/2019/065566 International Application No.: PCT/JP2018/035288
Publication Date: 04.04.2019 International Filing Date: 25.09.2018
IPC:
H01M 4/525 (2010.01) ,C01G 53/00 (2006.01) ,H01M 4/36 (2006.01) ,H01M 4/505 (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
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
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
G
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F94
53
Compounds of nickel
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
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
Applicants:
住友金属鉱山株式会社 SUMITOMO METAL MINING CO., LTD. [JP/JP]; 東京都港区新橋5丁目11番3号 11-3, Shimbashi 5-chome, Minato-ku, Tokyo 1058716, JP
Inventors:
中村 拓真 NAKAMURA Takuma; JP
金田 治輝 KANEDA Haruki; JP
小鹿 裕希 KOSHIKA Yuki; JP
Agent:
小池 晃 KOIKE Akira; JP
河野 貴明 KONO Takaaki; JP
村上 浩之 MURAKAMI Hiroyuki; JP
Priority Data:
2017-18904328.09.2017JP
Title (EN) POSITIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, MANUFACTURING METHOD FOR POSITIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, AND LITHIUM-ION SECONDARY BATTERY
(FR) MATÉRIAU ACTIF D’ÉLECTRODE POSITIVE POUR BATTERIE SECONDAIRE AU LITHIUM-ION, PROCÉDÉ DE FABRICATION DE MATÉRIAU ACTIF D’ÉLECTRODE POSITIVE POUR BATTERIE SECONDAIRE AU LITHIUM-ION, ET BATTERIE SECONDAIRE AU LITHIUM-ION
(JA) リチウムイオン二次電池用正極活物質、リチウムイオン二次電池用正極活物質の製造方法及びリチウムイオン二次電池
Abstract:
(EN) The purpose of the present invention is to provide a positive-electrode active material with which it is possible to obtain a lithium-ion secondary battery exhibiting improved thermostability during overcharging and improved durability, and achieving a higher level of both thermostability and durability. This positive-electrode active material for a lithium-ion secondary battery is formed from a lithium-nickel-manganese composite oxide constituted from secondary particles that are an aggregate of a plurality of primary particles. Said positive-electrode active material is characterized in that: the lithium-nickel-manganese composite oxide is represented by general formula (1), LidNi1-a-b-cMnaMbTicO2 (in general formula (1), M is at least one element selected from Co, W, Mo, V, Mg, Ca, Al, Cr, Zr, and Ta, 0.05≤a≤0.60, 0≤b≤0.60, 0.02≤c≤0.08, and 0.95≤d≤1.20); and at least part of the titanium in the lithium-nickel-manganese composite oxide is dissolved in the primary particles, and a lithium-titanium compound is present on the surface of the positive-electrode active material for a lithium-ion secondary battery.
(FR) Le but de la présente invention est de fournir un matériau actif d'électrode positive avec lequel il est possible d'obtenir une batterie secondaire au lithium-ion présentant une thermostabilité améliorée pendant une surcharge et une durabilité améliorée, et d'obtenir un niveau supérieur à la fois de thermostabilité et de durabilité. Ce matériau actif d'électrode positive pour une batterie secondaire au lithium-ion est formé à partir d'un oxyde composite de lithium-nickel-manganèse constitué de particules secondaires qui sont un agrégat d'une pluralité de particules primaires. Ledit matériau actif d'électrode positive est caractérisé en ce que : l'oxyde composite de lithium-nickel-manganèse est représenté par la formule générale (1), LidNi1-a-b-cMnaMbTicO2 (dans la formule générale (1), M représente au moins un élément choisi parmi Co, W, Mo, V, Mg, Ca, Al, Cr, Zr, et Ta, 0,05 ≤ a ≤ 0,60, 0 ≤ b ≤ 0,60, 0,02 ≤ c ≤ 0,08, et 0,95 ≤ d ≤ 1,20) ; et au moins une partie du titane dans l'oxyde composite de lithium-nickel-manganèse est dissoute dans les particules primaires, et un composé de lithium-titane est présent sur la surface du matériau actif d'électrode positive pour une batterie secondaire au lithium-ion.
(JA) 耐久性及び過充電時の熱安定性を向上させ、耐久性及び熱安定性を高い次元で両立させたリチウムイオン二次電池が得られる正極活物質を提供することを目的とする。 複数の一次粒子が凝集した二次粒子で構成されたリチウムニッケルマンガン複合酸化物からなるリチウムイオン二次電池用正極活物質であって、リチウムニッケルマンガン複合酸化物は、一般式(1):LiNi1-a-b-cMnTi(一般式(1)中、Mは、Co、W、Mo、V、Mg、Ca、Al、Cr、Zr及びTaから選択される少なくとも1種の元素であり、0.05≦a≦0.60、0≦b≦0.60、0.02≦c≦0.08、0.95≦d≦1.20である。)で表され、リチウムニッケルマンガン複合酸化物中のチタンの少なくとも一部は、一次粒子に固溶し、かつ、リチウムチタン化合物がリチウムイオン二次電池用正極活物質の表面に存在していることを特徴とする。
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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, JO, 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)