基于废旧三元锂离子电池电极混合粉制备高效电解水电极的方法

• Format: Patent
• Language: Chinese
• Published: 29.10.2024
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

基于废旧三元锂离子电池电极混合粉制备高效电解水电极的方法，本发明的目的是为了解决现有回收锂电池的工艺比较复杂，环境污染和回收成本较高等一系列问题。制备高效电解水电极的方法：一、对废旧三元锂离子电池进行机械破碎，将收集的正极和负极混合粉体材料与粘结剂搅拌混合均匀，得到电极浆料；二、准备电极集流体；三、将电极浆料涂覆在电极集流体上，然后进行烘干处理；四、将步骤三得到的复合电极直接作为电解水制氢高效析氧电极。本发明实现了废旧电池中电极混合粉的合理使用，正极和负极功效互补。其中锂离废旧电池中回收的正极三元粉体作为电极中的催化剂物质，负极中的石墨可作为电极中导电网络，二者的复合形成了高效的析氧电极。 The invention discloses a method for preparing a high-efficiency electrolysis water electrode based on waste ternary lithium ion battery electrode mixed powder. The invention aims to solve a series of problems of relatively complex process, environmental pollution, relatively high recovery cost and the like of an existing lithium battery recovery process. The method for preparing the efficient electrolysis water electrode comprises the following steps: 1, mechanically crushing a waste ternary lithium ion battery, and uniformly stirring and mixing a collected positive electrode and negative electrode mixed powder material with a binder to obtain electrode slurry; 2, preparing an electrode current collector; 3, coatin