金融界2025年5月3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“负极片、电池和用电设备”的专利,公开号CN119905511A,申请日期为2024年12月。专利摘要显示,本申请提供了负极片、电池和用电设备。该负极片包括:负极集流体和负极活性层,负极活性层设置负极集流体的至少一个表面上,负极活性层包括n层层叠设置的子活性层,定义与负极集流体距离最近的子活性层为第1层所述子活性层...
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