Abstract: This report analyzed the patent application for silicon-based anode including the annual distribution of applied patents, main competitive countries and patent applicants, patent for origin and target country analysis, etc. The characters of patent application of main competitive countries and patent applicants were also studied. As a result, We found that the patent applications were mainly from China, America, Japan and Korea. Applicants from America, Japan and Korea focused on filing patents in the above four countries, while most applicants from our country filed at home only. The applicants from abroad had filed a large number of patents in our country. Based on these, the report puts forward some suggestions of Science & Technology innovation and patent application and protection for industrial developments about silicon-based anode.

Key words: lithium-ion batteries, silicon, anode, patent analysis