比亚迪申请一种负极片及其制备方法等专利，减少负极片膨胀提升电池循环性能

金融界2025-05-08

金融界 2025 年 5 月 8 日消息，国家知识产权局信息显示，比亚迪股份有限公司申请一项名为“一种负极片及其制备方法、电池及用电设备”的专利，公开号 CN119943861A，申请日期为 2025 年 1 月。专利摘要显示，本申请公开了一种负极片及其制备方法、电池及用电设备，负极片包括集流体，设置在所述集流体至少一侧的负极活性层，所述负极活性层包括形状记忆聚合物，所述形状记忆聚合物包括硬段...

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