▎ 摘　　要

NOVELTY - A positive electrode sheet consists of a positive electrode current collector (31), a positive electrode material layer (33), and a thermosensitive material layer (32) comprising a negative temperature coefficient thermosensitive material having a room-temperature resistance (R25) of 1-1000 KΩ , preferably 1-100 KΩ , and a thermosensitive constant (B) of 1000-10000 K, preferably 1000-5000 K, provided between the positive electrode current collector and the positive electrode material layer. USE - Positive electrode sheet is used for secondary battery e.g. lithium ion battery for forming module for forming battery pack for electrical device (all claimed) e.g. mobile phone and notebook computer. Can also be used for electric vehicle, hybrid electric vehicle, plug-in hybrid electric vehicle, electric bicycle, electric scooter, electric club car, electric truck, electric rail vehicle, ship, and satellite energy storage system. ADVANTAGE - The positive electrode sheet has excellent thermal stability, high thermosensitive constant, and low room-temperature resistance, with respect to thermosensitive material layer, and provides secondary battery with excellent normal-temperature performance and electrochemical performance, at low temperatures. DESCRIPTION OF DRAWING(S) - The drawing shows the schematic cross-sectional view of positive electrode sheet. 31Current collector 32Thermosensitive material layer 33Positive electrode material layer