品玩5月4日讯，东京专利分析公司 Patent Result 发布的报告显示，与其他任意国家的竞争对手相比，中国企业提交了更多与电动汽车充电和换电相关的专利申请，在关键技术方面取得了长足进步，使充电体验更快、更方便。
报告称，2010 年到 2022 年，中国企业在这些领域提交了 41,011 项专利申请。虽然排名靠前的中国企业不多，但中国在这一领域的参与者数量之多使得他们提交的申请总量比日本公司多出大约 50%。日本企业以 26,962 项专利位居第二。德国排在第三，专利数量为 16,340 项；美国为 14,325 项，排在第四；韩国以 11,281 项排在第五。
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