Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2001035482) SECONDARY LITHIUM BATTERY
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/035482 International Application No.: PCT/EP2000/010605
Publication Date: 17.05.2001 International Filing Date: 26.10.2000
IPC:
H01M 4/80 (2006.01) ,H01M 4/38 (2006.01) ,H01M 4/58 (2010.01) ,H01M 10/36 (2010.01) ,H01M 10/42 (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
64
Carriers or collectors
70
characterised by shape or form
80
Porous plates, e.g. sintered carriers
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
38
of elements or alloys
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
58
of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
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
36
Accumulators not provided for in groups H01M10/05-H01M10/3492
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
42
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
Applicants:
KONINKLIJKE PHILIPS ELECTRONICS N.V. [NL/NL]; Groenewoudseweg 1 NL-5621 BA Eindhoven, NL
Inventors:
NOTTEN, Petrus, H., L.; NL
FEIL, Hans; NL
ORISINI, Francois, P., R.; NL
TARASCON, Jean, M.; NL
Agent:
STOLK, Steven, A.; Internationaal Octrooibureau B.V. Prof. Holstlaan 6 NL-5656 AA Eindhoven, NL
Priority Data:
99203772.111.11.1999EP
Title (EN) SECONDARY LITHIUM BATTERY
(FR) BATTERIE SECONDAIRE AU LITHIUM
Abstract:
(EN) A description is given of a secondary lithium metal battery in which the formation of lithium dendrites is inhibited. The battery (1) comprises negative electrode material (3) on a current collector (5) and positive electrode material (7) on a current collector (9) separated by a separator (11), which may be a polymer gel electrolyte optionally combined with a separator. According to the invention, the negative electrode (anode) has a high specific surface area, so that lithium dendrites are prevented during charging of the negative electrode. Examples of electrode materials of high surface area are particles of graphite, metals such as nickel, or metal foams, e.g. of nickel. Lithium intercalation does not occur in metals, whereas the intercalating capacity for lithium in graphite is at most 25 percent of the capacity of the positive electrode.
(FR) L'invention concerne une batterie secondaire au métal lithium dans laquelle on empêche la formation de dendrites de lithium. La batterie (1) comprend un matériau d'électrode négative (3) placé sur un collecteur de courant (5) et un matériau d'électrode positive (7) placé sur un collecteur de courant (9) séparés par un séparateur (11), qui peut être un électrolyte à gel polymère éventuellement combiné avec un séparateur. L'électrode négative (anode) a une surface d'action spécifique importante, si bien que la formation de dendrites de lithium est empêchée durant le chargement de l'électrode négative. On peut donner comme exemples de matériaux d'électrode à surface d'action importante les particules de graphite, les métaux du type nickel ou encore les mousses métalliques, par exemple à base de nickel. Il n'y a pas d'intercalation de lithium dans les métaux, tandis que la capacité d'intercalation du lithium dans le graphite équivaut au plus à 25 % de la capacité de l'électrode positive.
front page image
Designated States: JP
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)