利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN101901941A 一种钛系负极材料锂离子电池的化成方法 无效 - 驳回

一种钛系负极材料锂离子电池的化成方法
摘要：
本发明公开了一种钛系负极材料锂离子电池的化成方法，其包括：(1)以电流I1对电池进行恒流限时充电；(2)以电流I2对电池进行恒流限压充电，截止电压V；(3)以截止电压V对电池进行恒压限时充电；其中I2＞I1，截止电压V≥2.0伏；所述化成是指开口化成。本发明所提供的化成方法可以有效抑制钛系负极材料电池循环和存放过程中的电池发鼓现象。还可以在钛系负极材料表面形成良好的负极保护膜，进一步提高电池性能。
摘要（英）：

The invention discloses a formation method for a titanium cathode material lithium ion battery. The formation method comprises the following steps of: (1) charging the battery with a constant current I1 in a limited time; (2) charging the battery with a constant current I2 in a voltage limiting way, wherein a cutoff voltage is V; and (3) charging the battery with the constant cutoff voltage V in a limited time, wherein I2 is more than I1, the cutoff voltage V is more than or equal to 2.0 volts, and the formation is opening formation. The formation method provided by the invention can efficiently inhibit the swelling phenomenon of titanium cathode material batteries in the process of circulation and storage of the batteries and a good cathode protecting film is formed on the surface of a titanium cathode material, so the battery performance is further improved.

0/0