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1. (WO2019044733) POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR ALL SOLID-STATE LITHIUM SECONDARY BATTERY
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Pub. No.: WO/2019/044733 International Application No.: PCT/JP2018/031484
Publication Date: 07.03.2019 International Filing Date: 27.08.2018
IPC:
H01M 4/505 (2010.01) ,H01M 4/36 (2006.01) ,H01M 4/525 (2010.01) ,H01M 10/0562 (2010.01) ,H01M 10/052 (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
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
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
056
characterized by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0561
the electrolyte being constituted of inorganic materials only
0562
Solid materials
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
Applicants:
三井金属鉱業株式会社 MITSUI MINING & SMELTING CO.,LTD. [JP/JP]; 東京都品川区大崎1丁目11-1 1-11-1, Osaki, Shinagawa-ku, Tokyo 1418584, JP
Inventors:
光本 徹也 MITSUMOTO Tetsuya; JP
鷲田 大輔 WASHIDA Daisuke; JP
Agent:
特許業務法人竹内・市澤国際特許事務所 TAKEUCHI, ICHIZAWA & ASSOCIATES; 東京都港区赤坂2丁目19番8号 赤坂2丁目アネックス6階 6F., Akasaka 2-chome Annex, 19-8, Akasaka 2-chome, Minato-ku, Tokyo 1070052, JP
Priority Data:
2017-16371028.08.2017JP
Title (EN) POSITIVE ELECTRODE ACTIVE SUBSTANCE FOR ALL SOLID-STATE LITHIUM SECONDARY BATTERY
(FR) MATIÈRE ACTIVE D'ÉLECTRODE POSITIVE POUR BATTERIE SECONDAIRE AU LITHIUM TOUT SOLIDE
(JA) 全固体型リチウム二次電池用正極活物質
Abstract:
(EN) A 5V-class spinel lithium manganese-containing composite oxide is provided which suppresses resistance while improving ion conductivity and can improve rate characteristics and cycle characteristics. In this positive electrode active substance for an all solid-state lithium secondary battery, which has an operating voltage of greater than or equal to 4.5 V at the metal Li reference potential, the surface of the core particles, configured from spinel lithium manganese-containing composite oxides containing at least Li, Mn and O, and at least two other elements, is covered with an amorphous compound containing Li, A (A is a combination of one or more elements selected from the group consisting of Ti, Zr, Ta, Nb, Zn, W and Al) and O, and the primary particles of the core particles are polycrystalline; this positive electrode active substance for an all solid-state lithium secondary battery is characterized in that D50 is 0.5-9 μm, the value ((|mode diameter - D50|/mode diameter)×100) is 0-25%, the value ((|mode diameter - D10|/mode diameter)×100) is 20-58%, and the average primary particle diameter/D50 is 0.20-0.99.
(FR) L'invention concerne un spinelle de classe 5V, et fournit un oxyde composite de lithium-manganèse de type spinelle qui permet d'améliorer les caractéristiques de régime et les caractéristiques de cycle en améliorant la conductivité ionique et en inhibant la résistance. L'invention concerne une matière active d'électrode positive dans laquelle la surface de particules noyau principal constituées de l'oxyde composite de lithium-manganèse de type spinelle contenant au moins Li, Mn ainsi que O, et au moins deux autres éléments chimiques, est revêtue par un composé non cristallin contenant Li, A (A consiste en une combinaison d'éléments chimiques d'une ou plusieurs sortes choisies dans un groupe constitué de Ti, Zr, Ta, Nb, Zn, W et Al) et O, dont les particules primaires des particules noyau principal sont constituées d'un corps polycristallin, et qui présente un potentiel de fonctionnement supérieur ou égal à 4,5V en termes de potentiel de référence de métal Li. Cette matière active d'électrode positive pour batterie secondaire au lithium tout solide est caractéristique en ce qu'une valeur D50 est comprise entre 0,5μm et 9μm, une valeur ((|diamètre modal D50|/diamètre modal )×100) est comprise entre 0 et 25%, une valeur ((|diamètre modal-D10|/diamètre modal)×100) est comprise entre 20 et 58%, et le rapport diamètre moyen de particule primaire / D50 est compris entre 0,20 et 0,99.
(JA) 5V級スピネルに関し、イオン伝導性を向上しつつ抵抗を抑制してレート特性、サイクル特性を改善することができる、スピネル型リチウムマンガン含有複合酸化物を提供する。 Li、Mn及びOと、これら以外の2種以上の元素とを少なくとも含むスピネル型リチウムマンガン含有複合酸化物からなる本コア粒子の表面が、Li、A(AはTi、Zr、Ta、Nb、Zn、W及びAlからなる群から選択される一種または二種以上の元素の組み合わせである。)及びOを含む非晶質化合物で被覆されており、かつ、本コア粒子の一次粒子が多結晶体からなる、金属Li基準電位で4.5V以上の作動電位を有する正極活物質であって、D50が0.5μm~9μmであり、(|モード径-D50|/モード径)×100)の値が0~25%であり、((|モード径-D10|/モード径)×100)の値が20~58%であり、かつ、平均一次粒子径/D50が0.20~0.99であることを特徴とする、全固体型リチウム二次電池用正極活物質を提案する。
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)