金融界 2025 年 4 月 24 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“极片及其制备方法、电芯、电池、电池装置及用电设备”的专利,公开号 CN119812198A,申请日期为 2025 年 1 月。专利摘要显示,本申请涉及电池技术领域,涉及一种极片及其制备方法、电芯、电池、电池装置及用电设备。极片包括极耳、集流体和活性物质层;集流体在靠近极耳的一侧在第二方向上的厚度尺寸...
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