Anode-free lithium secondary battery and method for manufacturing same

The invention discloses an anodeless lithium secondary battery and a method for manufacturing the same. The anodeless lithium secondary battery has improved lithium utilization rate. The lithium secondary battery includes an anode current collector, a composite layer disposed on the anode current collector, an intermediate layer disposed on the composite layer, a cathode active material layer disposed on the intermediate layer, and a cathode current collector disposed on the cathode active material layer. The composite layer includes a carbon component, metal particles capable of alloying with lithium, a polymeric binder capable of bonding to the metal particles by electrostatic attraction, and a solid electrolyte interface layer coated on the metal particles. 本申请公开了一种无阳极锂二次电池及其制造方法，所述无阳极锂二次电池具有改进的锂利用率。锂二次电池包含阳极集电体、布置在阳极集电体上的复合层、布置在复合层上的中间层、布置在中间层上的阴极活性材料层和布置在阴极活性材料层上的阴极集电体。复合层包含碳组分、能够与锂合金化的金属颗粒、能够通过静电吸引结合至金属颗粒的聚合物粘合剂和涂覆在金属颗粒上的固体电解质界面层。