Negative pole piece, secondary battery and electronic device

The invention provides a negative electrode plate, a secondary battery and an electronic device, the negative electrode plate comprises a negative electrode material, the negative electrode material comprises a matrix material, the surface of the matrix material is provided with a fast ion conductor, and the fast ion conductor is a lithium lanthanum zirconium oxide; the Dv50 of the base material is D1 [mu] m, the Dv50 of the fast ion conductor is D2 [mu] m, D2/D1 < = 0.1, and 0.05 < = D2 < = 1. The negative pole piece provided by the invention meets the above characteristics, can improve the gas production and temperature rise of the secondary battery, and achieves the technical effect of improving the stability and safety of the secondary battery. 本申请提供了一种负极极片、二次电池及电子装置，负极极片包括负极材料，负极材料包括基体材料，基体材料的表面具有快离子导体，其中，快离子导体为锂镧锆氧化物；基体材料的Dv50为D1μm，快离子导体的Dv50为D2μm，D2/D1≤0.1，且0.05≤D2≤1。本申请提供的负极极片满足上述特征，能够改善二次电池产气和温升，达到提升二次电池的稳定性和安全性的技术效果。