Hydrogel-shaped zinc negative electrode material and preparation method thereof, negative electrode and battery

Abstract

The invention belongs to the technical field of batteries, and particularly relates to a hydrogel-shaped zinc negative electrode material and a preparation method thereof, a negative electrode and a battery. The invention discloses the preparation method of the hydrogel-shaped zinc negative electrode material. The method comprises the following steps: 1, heating first metal to a molten state to prepare a first metal liquid; 2, mixing second metal and the first metal liquid, and acquiring a composite metal liquid; and 3, mixing the composite metal liquid with a polymer aqueous solution to prepare the hydrogel-shaped zinc negative electrode material, wherein the melting point of the first metal is lower than that of the second metal; and the second metal is selected from one or more of zinc,indium, tin, bismuth, titanium, nickel, vanadium and manganese. According to the zinc negative electrode material and the preparation method thereof, the negative electrode and the battery provided by the invention, the technical defects of low safety and poor electrochemical performance of an existing zinc negative electrode material can be effectively overcome. 本申请属于电池的技术领域，尤其涉及一种水凝胶赋形的锌负极材料及其制备方法、负极和电池。本申请公开了一种水凝胶赋形的锌负极材料的制备方法，包括以下步骤：步骤1、将第一金属加热至熔融状态，制得第一金属液体；步骤2、将第二金属与所述第一金属液体混合，制得复合金属液体；步骤3、将所述复合金属液体和聚合物水溶液混合，制得水凝胶赋形的锌负极材料；其中，所述第一金属的熔点比所述第二金属的熔点低；所述第二金属选自锌、铟、锡、铋、钛、镍、钒和锰中的一种或多种。本申请提供的锌负极材料及其制备方法、负极和电池，能有效解决现有的锌负极材料的安全性低和电化学性能差的技术缺陷。