HIGH-CAPACITY STACKED-ELECTRODE METAL-ION ACCUMULATOR CAPABLE OF DELIVERING HIGH POWER

HIGH-CAPACITY STACKED-ELECTRODE METAL-ION ACCUMULATOR CAPABLE OF DELIVERING HIGH POWER

The present invention relates to a metal-ion accumulator (A), comprising a stack of elementary electrochemical cells, each comprising a cathode (2), an anode (3), and a separator (1) impregnated with electrolyte intercalated between the anode and the cathode, each anode and cathode consisting of a s...

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Hauptverfasser: Dewulf, Frédéric, Chami, Marianne
Format: Patent
Sprache:eng
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BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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creator Dewulf, Frédéric
Chami, Marianne
description The present invention relates to a metal-ion accumulator (A), comprising a stack of elementary electrochemical cells, each comprising a cathode (2), an anode (3), and a separator (1) impregnated with electrolyte intercalated between the anode and the cathode, each anode and cathode consisting of a substrate (2S, 3S) formed from a metal foil comprising a central portion (22, 32) supporting, on at least one of its main faces, a layer of active metal ion insertion material, the porosity of the layers of active material of the electrodes of one of the given polarities (anode or cathode) having at least two different values in the stack, the highest porosity being that of at least one electrode of said polarity, arranged between the center and the ends of the stack.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title HIGH-CAPACITY STACKED-ELECTRODE METAL-ION ACCUMULATOR CAPABLE OF DELIVERING HIGH POWER
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