Slurry coating process of diatomite filter for lithium battery copper foil system

The invention belongs to the technical field of electrolytic copper foil production processes, and particularly relates to a slurry coating process of a diatomite filter for a lithium battery copper foil system. The concentrations of different additives A, B, C and D in the to-be-coated copper foil...

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Bibliographic Details
Main Authors PENG XIAOLIN, WANG QINGFU, LI YING'EN, FAN BINFENG
Format Patent
LanguageChinese
English
Published 19.03.2021
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
SEPARATION
TRANSPORTING
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Summary:The invention belongs to the technical field of electrolytic copper foil production processes, and particularly relates to a slurry coating process of a diatomite filter for a lithium battery copper foil system. The concentrations of different additives A, B, C and D in the to-be-coated copper foil electrolyte are determined by utilizing an electroplating experiment, wherein the A is HEC hydroxyethyl cellulose, the B is HP alcohol sulfenyl sodium propanesulfonate, the C is PN polyethyleneimine alkyl salt, and the D is BSP phenyl sodium dithiopropanesulfonate. By adding the additives with a proper concentration used in the initial production stage into the electrolyte to be treated, the fluctuation of a solute system in a slurry hanging system is effectively reduced, and the abnormal amountin the slurry hanging period is reduced. Verification results show that: compared with the glossiness of the copper foil before slurry coating, the glossiness of the copper foil after slurry coatingis not changed greatly, th
Bibliography:Application Number: CN202011328522