Lithium ion battery formation process

• Main Authors: LIU MINGHONG, SNYDER KEVIN
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention provides a lithium ion battery formation process. A method of producing a lithium ion battery comprises a first step of filling at least one cell of the battery with an electrolyte, followed by directly sealing the at least one cell, and a second step of applying a pulsating compression to the at least one cell during a formation charge, the pulsating compression comprises alternating a first period of time in which a first compression force F1 greater than zero is applied with a second period of time in which a second compression force F2 is applied, where F1gt; f2, and the formation charging comprises a first charging of the battery. 本公开提供"锂离子电池化成工艺"。一种产生锂离子电池的方法包括：用电解质填充电池的至少一个电池单元，接着直接是密封所述至少一个电池单元的第一步骤，以及在化成充电期间向所述至少一个电池单元施加脉动压缩的第二步骤，所述脉动压缩包括使施加大于零的第一压缩力F1的第一时间段与施加第二压缩力F2的第二时间段交替，其中F1>F2，并且所述化成充电包括对所述电池的第一次充电。