DEVICE FOR MANUFACTURING ELECTRODE PLATE FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY

DEVICE FOR MANUFACTURING ELECTRODE PLATE FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY

PROBLEM TO BE SOLVED: To manufacture a highly reliable lithium secondary battery with a good yield and without fear of combustion owing to an internal short circuit.SOLUTION: A device for manufacturing an electrode plate for a lithium secondary battery is composed of a coating device which comprises...

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Hauptverfasser: ISHIHARA SHOSAKU, KUBOTA CHIEMI
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 ISHIHARA SHOSAKU
KUBOTA CHIEMI
description PROBLEM TO BE SOLVED: To manufacture a highly reliable lithium secondary battery with a good yield and without fear of combustion owing to an internal short circuit.SOLUTION: A device for manufacturing an electrode plate for a lithium secondary battery is composed of a coating device which comprises: a foreign material detector 2 provided in a flow path 10 of slurry for forming an electrode film 12 for detecting a metallic foreign material having mixed into the slurry; a rejection valve 3 provided downstream of the foreign material detector 2 for switching the flow path to flow the slurry through between a normal flow path 10b and a discharge flow path 10a based on a foreign material detection signal from the foreign material detector; a flow-rate regulation tank 4 provided in the normal flow path 10b downstream of the rejection valve for keeping the flow rate of the slurry fixed; and a coating part 9 provided downstream of the flow-rate regulation tank 4 for coating a metal foil 11 with the slurry. The device allows the manufacture of a lithium secondary battery arranged to prevent a metallic foreign material from causing an internal short circuit.
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subjects BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
title DEVICE FOR MANUFACTURING ELECTRODE PLATE FOR LITHIUM SECONDARY BATTERY, AND METHOD FOR MANUFACTURING LITHIUM SECONDARY BATTERY
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