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1. (WO2007015419) NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2007/015419    International Application No.:    PCT/JP2006/314879
Publication Date: 08.02.2007 International Filing Date: 27.07.2006
Chapter 2 Demand Filed:    11.01.2007    
IPC:
H01M 4/13 (2010.01), H01M 4/134 (2010.01), H01M 4/136 (2010.01), H01M 4/139 (2010.01), H01M 4/1395 (2010.01), H01M 4/1397 (2010.01), H01M 4/38 (2006.01), H01M 4/48 (2010.01), H01M 4/485 (2010.01), H01M 4/58 (2010.01), H01M 4/70 (2006.01)
Applicants: Matsushita Electric Industrial Co., Ltd. [JP/JP]; 1006, Oaza Kadoma, Kadoma-shi, Osaka 5718501 (JP) (For All Designated States Except US).
KOGETSU, Yasutaka; (For US Only).
UGAJI, Masaya; (For US Only).
TAKAHASHI, Keiichi; (For US Only).
MINO, Shinji; (For US Only).
NAGAO, Nobuaki; (For US Only).
SHIBUTANI, Satoshi; (For US Only).
HONDA, Kazuyoshi; (For US Only)
Inventors: KOGETSU, Yasutaka; .
UGAJI, Masaya; .
TAKAHASHI, Keiichi; .
MINO, Shinji; .
NAGAO, Nobuaki; .
SHIBUTANI, Satoshi; .
HONDA, Kazuyoshi;
Agent: ISHII, Kazuo; Kitahama-Yamamoto Building 3-6, Kitahama 2-chome, Chuo-ku Osaka-shi Osaka 5410041 (JP)
Priority Data:
2005-223586 02.08.2005 JP
Title (EN) NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND METHOD FOR PRODUCING SAME
(FR) ÉLECTRODE NÉGATIVE POUR UNE BATTERIE SECONDAIRE AU LITHIUM ET SON PROCÉDÉ DE FABRICATION
(JA) リチウム二次電池用負極およびその製造方法
Abstract: front page image
(EN)Disclosed is a negative electrode for lithium secondary batteries which comprises a collector and an active material layer supported by the collector. The active material layer contains a plurality of columnar particles containing silicon element. The columnar particles are inclined to the normal of the collector, and the porosity P of the active material layer is not less than 10% but not more than 70% (10% ≤ P ≤ 70%). The angle &thetas; between each columnar particle and the normal of the collector is preferably not less than 10˚ but not more than 80˚ (10˚ ≤ &thetas; ≤ 80˚).
(FR)La présente invention concerne une électrode négative pour des batteries secondaires au lithium qui comprend un collecteur et une couche de matière active soutenue par le collecteur. Ladite couche contient une pluralité de particules en forme de colonne contenant l’élément silicium. Lesdites particules sont inclinées par rapport à la normale du collecteur et la porosité P de ladite couche n’est pas inférieure à 10 %, mais pas supérieure à 70 % (10 % ≤ P ≤ 70 %). L’angle &thetas; entre chaque particule en forme de colonne et la normale du collecteur n’est de préférence pas inférieur à 10°, mais pas supérieur à 80° (10° ≤ &thetas; ≤ 80°).
(JA) 集電体と、集電体に担持された活物質層とを具備し、活物質層は、複数の柱状粒子を含み、柱状粒子は、ケイ素元素を含み、柱状粒子が、集電体の法線方向に対して傾斜しており、活物質層の空隙率Pが、10%≦P≦70%である、リチウム二次電池用負極。柱状粒子が集電体の法線方向と成す角θは、10°≦θ≦80°が好ましい。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, 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)