Porous layer for nonaqueous electrolyte secondary battery

• Main Authors: HORIE KENSAKU, KUWABARA HIROAKI, OZEKI TOMOAKI, FURUKAWA JUN
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention addresses the problem of providing a porous layer for a non-aqueous electrolyte secondary battery, said porous layer being capable of improving battery performance such as initial charge/discharge efficiency of a non-aqueous electrolyte secondary battery. A porous layer for a non-aqueous electrolyte secondary battery, the porous layer containing a resin having an amide bond, the resin having an amide bond containing a cyclic component, and the content of the cyclic component being 2.0 wt% to 10.0 wt% with respect to the total weight of the resin having an amide bond. 本发明的课题在于提供一种可改善非水电解液二次电池的初次充放电效率等电池性能的非水电解液二次电池用多孔层。其解决手段为一种非水电解液二次电池用多孔层，其包含具备酰胺键的树脂，上述具备酰胺键的树脂包含环状成分，相对于上述具备酰胺键的树脂的总重量，上述环状成分的含量为2.0重量％以上、10.0重量％以下。