小米汽车科技取得卷芯、电池和车辆专利，避免出现局部应力过大所导致的析锂的问题

金融界2025-05-09

金融界2025年5月9日消息，国家知识产权局信息显示，小米汽车科技有限公司取得一项名为“卷芯、电池和车辆”的专利，授权公告号CN222838882U，申请日期为2024年6月。专利摘要显示，本实用新型涉及一种卷芯、电池和车辆，所述卷芯包括：正极片、负极片以及用于隔开所述正极片和所述负极片的隔膜，所述正极片、所述负极片和所述隔膜卷绕布置，并形成平直区和弯折区，所述弯折区设于所述平直区的长度方向的一侧...

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