Storage battery plate group wrapping film and preparation method of storage battery

Fecha de publicación: 30/08/2022
Fuente: WIPO "hemp"
The invention discloses a storage battery plate group wrapping film and a preparation method of a storage battery, and belongs to the field of manufacturing of lead-acid storage batteries. The storage battery plate group wrapping film comprises a raw material layer and a gluing layer, the raw material layer comprises the following components in percentage by mass: 60-75% of wood pulp, 10-15% of tencel, 10-15% of hemp pulp, and 1-3% of polyvinyl alcohol and polyoxyethylene in a ratio of 1: (1-5); the gluing layer comprises carboxymethyl cellulose, hydroxy propyl cellulose and 4.5%-12% of gelatin, and the ratio of the carboxymethyl cellulose to the hydroxy propyl cellulose to the gelatin is 1: (3-5): (5-18). The degradable material is contained in the formula of the storage battery plate group wrapping film, after the electrolyte is added, the electrolyte can infiltrate the wrapping film, and a certain amount of electrolyte is provided for polar plates on the two sides. In the formation process of the battery, the wrapping film can be dissolved and dispersed and can be gradually decomposed after the battery is used.