金融界2025年6月30日消息,国家知识产权局信息显示,通用汽车环球科技运作有限责任公司申请一项名为“包含正温度系数(PTC)材料的电极”的专利,公开号CN120221561A,申请日期为2023年12月。专利摘要显示,本发明涉及包含正温度系数(PTC)材料的电极。一种用于电池组电池的电极包括集流体和布置在所述集流体上的活性材料层。在一些实例中,所述活性材料层包括活性材料、导电添加剂、正温度系数(...
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