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Qualitative Analysis of Patents Concerning Cathode Active Materials for Lithium-Ion Secondary Batteries Based on Layer Structure

층상구조기반의 리튬이차전지용 양극 활물질에 관한 특허정성분석

  • Kim, Byung-Nam (Center for Innovative Engineering Education, Dankook University) ;
  • Lim, Yong-Hwan (Department of Chemical Engineering, Dankook University) ;
  • Lee, Chul-Tae (Department of Chemical Engineering, Dankook University)
  • 김병남 (단국대학교 공학교육혁신센터) ;
  • 임용환 (단국대학교 화학공학과) ;
  • 이철태 (단국대학교 화학공학과)
  • Received : 2015.03.02
  • Accepted : 2015.05.04
  • Published : 2015.06.10

Abstract

We have quantitatively analyzed 1,294 effective patents on "Quantitative Analysis of Patents Concerning Cathode Active Materials for Lithium-Ion Secondary Batteries Based on Layer Structure" from Korea, USA, Japan, Europe and PCT (WO). The importance of technological and patent values of the aforesaid patents were evaluated by the factors shown in Table 1, and 104 major and 20 core patents were selected in compliance with the evaluation from the patents. The technological flow chart over time regarding the selected major and core patents was prepared, and the applying time and development process of patents, as well as the position of core patents were established on the time scale investigated. Finally, the differentiation plans and patent avoidance strategies for the next technology development, in comparison with the technologies of patents already applied and registered, were suggested.

Keywords

Lithium Battery;Layer Structure;Cathode Active Material;Patent;Quality

Acknowledgement

Grant : 지식재산·정보보호법 특화 전문인재양성 사업단

References

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