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1. (WO2018043189) POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY, AND NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY
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Pub. No.: WO/2018/043189 International Application No.: PCT/JP2017/029844
Publication Date: 08.03.2018 International Filing Date: 22.08.2017
IPC:
H01M 4/525 (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
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:
青木 良憲 AOKI Yoshinori; --
斉藤 元治 SAITOU Motoharu; --
小笠原 毅 OGASAWARA Takeshi; --
Agent:
鎌田 健司 KAMATA Kenji; JP
前田 浩夫 MAEDA Hiroo; JP
Priority Data:
2016-16992331.08.2016JP
Title (EN) POSITIVE ELECTRODE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY, AND NONAQUEOUS ELECTROLYTE RECHARGEABLE BATTERY
(FR) MATÉRIAU ACTIF D'ÉLECTRODE POSITIVE DESTINÉ À UNE BATTERIE RECHARGEABLE À ÉLECTROLYTE NON AQUEUX, ET BATTERIE RECHARGEABLE À ÉLECTROLYTE NON AQUEUX
(JA) 非水電解質二次電池用正極活物質及び非水電解質二次電池
Abstract:
(EN) The purpose of this invention is to provide a positive electrode active material for nonaqueous electrolyte rechargeable battery, with which it is possible to improve the initial charging and discharging efficiency, while containing a nickel-containing lithium transition metal oxide having a high Ni content. This positive electrode active material for nonaqueous rechargeable battery contains a Ni-containing lithium transition metal oxide (Ni ≥ 80 mol%) having a layered structure, and boron is present within the particles of the Ni-containing lithium transition metal oxide. The ratio b of boron with respect to the total molar ratio of metal elements aside from lithium in the Ni-containing lithium transition metal oxide falls within the range of 0 mol% < b ≤ 0.5 mol%, and the ratio d of the discharge capacity at or below 3.5 V as a percentage of the discharge capacity from 2.5 V to 4.3 V (vs. Li/Li+) satisfies 6% < d.
(FR) La présente invention vise à fournir un matériau actif d'électrode positive destiné à une batterie rechargeable à électrolyte non aqueux, qui permet d'améliorer l'efficacité de charge et de décharge initiale, tout en contenant un oxyde de métal de transition de lithium contenant du nickel disposant d'une forte teneur en Ni. Ce matériau actif d'électrode positive destiné à une batterie rechargeable non aqueuse contient un oxyde de métal de transition de lithium contenant du Ni (Ni ≥ 80 % en moles) disposant d'une structure stratifiée et dont les particules contiennent du bore. Le rapport b du bore par rapport au rapport molaire total des éléments métalliques en dehors du lithium dans l'oxyde de métal de transition de lithium contenant du Ni s'inscrit dans la plage de 0 % en moles < b ≤ 0.5 % en moles, et le rapport de la capacité de décharge à 3,5 V ou au-dessous en pourcentage de la capacité de décharge de 2,5 V à 4,3 V (vs. Li/Li +) satisfait 6 % < d.
(JA) 本発明は、Ni含有量の高いニッケル含有リチウム遷移金属酸化物を含有していながら、初期充放電効率を改善することが可能な非水電解質二次電池用正極活物質を提供することを目的とする。 本発明の非水電解質二次電池用正極活物質は、層状構造を有する、Ni含有リチウム遷移金属酸化物(Ni≧80mol%)を含み、前記Ni含有リチウム遷移金属酸化物の粒子内にはホウ素が存在している。前記Ni含有リチウム遷移金属酸化物中のリチウムを除く金属元素の総モル量に対する前記ホウ素の割合bは、0mol%<b≦0.5mol%の範囲であり、2.5V~4.3V(vs.Li/Li+)の放電容量に占める3.5V以下の放電容量の割合dは、6%<dの範囲である。
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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, 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)