Patent Analysis of Solid-State Electrolyte for Lithium-ion Battery
[Purposes]With the rapid development of the new energy vehicle industry,the traditional liq-uid electrolyte for lithium-ion battery can no longer meet the market demand.Solid-state electrolyte can effectively solve the safety problem of lithium-ion battery,which is the current research focus in the field of new energy.This study aims to provide technical guidance for the patent strategy layout of relevant en-terprises.[Methods]Taking the patents related to solid state electrolyte for lithium-ion battery included in Patsnap as the data source,we visualize and analyze the application development trend,legal status,and applicants,and summarize the technological development of the inorganic,polymer,and organic-inorganic composite solid-state electrolyte in terms of multiple dimensions,such as the material,struc-ture,process,and number of citations of the patents.[Findings]Inorganic solid-state electrolyte and organic-inorganic composite solid-state electrolyte have good application prospects,and foreign enter-prises have already applied a large number of patents in the direction of inorganic solid-state electro-lyte;organic-inorganic composite solid-state electrolyte field patent layout is still less in China,and China's enterprises related to the patent layout is still relatively decentralize.[Conclusions]It is sug-gested to strengthen the patent layout in the direction of organic-inorganic composite solid-state electro-lyte,ensure the whole process of intellectual property protection in the upstream and downstream indus-tries of electrolyte,and deepen the cooperation between the industry,academia and research institutes.
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