金融界2025年2月22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“具有碳纤维网络的柱状硅阳极和包括其的锂离子电池组”的专利，公开号CN 119495699 A，申请日期为2023年8月。
专利摘要显示，提供了包括柱状硅阳极的锂离子电池组，所述柱状硅阳极包括在柱状硅阳极的暴露表面上的碳纤维网络。柱状硅通过等离子体气相沉积法形成。还公开了用于形成碳纤维网络的方法，其通常包括喷涂包含碳纳米管、任选的聚合物分散剂和溶剂的稀碳纤维前体溶液，然后将其在升高的温度下温和蒸发以除去溶剂并形成碳纤维网络。碳纤维网络均匀且多方向地设置在柱状硅阳极的暴露表面上。碳纤维网络的存在提供了高电子通路，以增强电池组功率容量，尤其是在较高的电流倍率下。
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