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1. (WO2017098716) POWER STORAGE ELEMENT
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/098716 International Application No.: PCT/JP2016/005056
Publication Date: 15.06.2017 International Filing Date: 05.12.2016
IPC:
H01M 4/13 (2010.01) ,H01G 11/24 (2013.01) ,H01G 11/42 (2013.01) ,H01M 4/02 (2006.01) ,H01M 4/62 (2006.01)
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
13
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
G
CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
11
Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
22
Electrodes
24
characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosity; characterised by the structural features of powders or particles used therefor
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
G
CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
11
Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
22
Electrodes
30
characterised by their material
32
Carbon-based
42
Powders or particles, e.g. composition thereof
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
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
62
Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
Applicants:
株式会社GSユアサ GS YUASA INTERNATIONAL LTD. [JP/JP]; 京都府京都市南区吉祥院西ノ庄猪之馬場町1番地 1, Inobaba-cho, Nishinosho, Kisshoin, Minami-ku, Kyoto-shi, Kyoto 6018520, JP
Inventors:
佐々木 丈 SASAKI, Takeshi; JP
加古 智典 KAKO, Tomonori; JP
伊藤 祥太 ITO, Shota; JP
下川 亮介 SHIMOKAWA, Ryosuke; JP
Priority Data:
2015-23951508.12.2015JP
Title (EN) POWER STORAGE ELEMENT
(FR) ÉLÉMENT DE STOCKAGE D'ÉNERGIE
(JA) 蓄電素子
Abstract:
(EN) A power storage element is provided which has a more adequate energy density and a more adequate output. This power storage element is provided with a positive electrode that has an active substance layer containing a particulate active substance. As the active substance, the active substance layer contains secondary particles which, aggregates of primary particles of the active substance, are made porous by the voids between the primary particles. The particle diameter frequency distribution of the secondary particles has a first peak, and a second peak appearing at a greater particle diameter than that of the first peak. The active substance layer further contains particulate graphite, the particle diameter at the first peak is 10 μm or less, and the particle diameter at the second peak is greater than 10 μm, and the average particle diameter of a conduction promoting agent is greater than 10 μm.
(FR) L'invention concerne un élément de stockage d'énergie qui présente une densité d'énergie plus adéquate et une production en sortie plus adéquate. L'élément de stockage d'énergie selon l'invention est pourvu d'une électrode positive qui a une couche de substance active contenant une substance active particulaire. En tant que substance active, la couche de substance active contient des particules secondaires, agrégats de particules primaires de la substance active, qui sont rendues poreuses par les vides entre les particules primaires. La distribution de fréquence de diamètre de particule des particules secondaires présente un premier pic et un second pic apparaissant à un diamètre de particule supérieur à celui du premier pic. La couche de substance active contient en outre un graphite particulaire, le diamètre de particule au niveau du premier pic est inférieur ou égal à 10 µm et le diamètre de particule au niveau du second pic est supérieur à 10 μm et le diamètre moyen de particule d'un agent favorisant la conduction est supérieur à 10 µm.
(JA) エネルギー密度をより十分に有し且つ出力をより十分に有する蓄電素子を提供する。本実施形態では、粒子状の活物質を含む活物質層を有する正極とを備え、活物質層は、活物質の一次粒子が凝集した二次粒子であって一次粒子の間の空隙によって多孔質に形成された二次粒子を活物質として含み、二次粒子の粒径頻度分布は、第1のピークと、第1のピークよりも粒子径が大きい方に現れる第2のピークとを有し、活物質層は、粒子状の黒鉛をさらに含み、第1のピークの粒子径は、10μm以下であり、第2のピークの粒子径は、10μmよりも大きく、導電助剤の平均粒径は、10μmよりも大きい、蓄電素子を提供する。
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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, JP, KE, KG, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)