结合中国废旧锂离子电池行业现状，采用知识产权分析方法对中国废旧锂离子电池资源回收技术发展趋势、核心技术区域、关键技术领域、主要技术发明人情况等进行了系统分析，并归纳总结了锂离子电池资源回收的核心技术要点，梳理出当前锂离子电池回收过程的技术路线分布状况。结果表明：近3年来，伴随着环保政策要求，锂离子电池回收专利文献数量进入了快速增长时期，专利年申请量已突破200件；技术分布于电气/冶金/化学/环保等领域，具有很强的学科领域交叉特性；申请机构中企业的高占比说明该技术的研究具有很强的工业应用价值。随着国家环保方面的政策日益完善和资源需求逐年提升，基于回收技术仍有较大进步空间，可以预测废旧锂离子电池的回收专利量会保持较大的上升趋势。产业政策、特别是污染防治规范与标准等将对相关技术研究与应用提供重要支撑。
Abstract
This study investigated the intellectual property concerns related to recycling spent lithium-ion batteries in China. This report summarizes the technical development trends, main regional distribution networks, critical technical fields, core technical points, and the core applicants. The results show that in the past 3 years, the number of patents related to lithium-ion battery recycling has increased rapidly to over 200 patents/a. There are many cross-disciplinary patents with many patents focused on the electrical components, metallurgy, chemistry, and environmental effects. The main applicants are not just limited to universities and research institutes, but also include a large number of companies since this research has significant industrial value. The stronger national environmental requirements and the increasing demand for resources is leading to many improvements in recycling methods as indicated by the increasing number of patents. Industrial policies, especially pollution prevention and control standards, provide important incentives for further research and for the development of improved recycling methods.
关键词
锂离子电池 /
专利 /
回收 /
技术路线 /
产业政策
Key words
lithium-ion batteries /
patent /
recycling /
technical roadmap /
industrial policy
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基金
国家科技部重点专项（2017YFB0403300/2017YFB043305）；
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