Li-rich layered cathode materials patent landscape 2013

  • March 2013
  • -
  • France Innovation Scientifique et Transfert

Description

High energy and power densities along with high safety are required to make the electric vehicle commercially viable. In order to comply with these requirements, new enhancements of battery material are needed. Three families of advanced cathode materials are the most serious candidates: High voltage spinel LiMn1.5Ni0.5O4 compounds, LiMPO4 and xLi2MnO3.(1-x)LiMO2. Among them, the solid solutions between Li2MnO3 and LiMO2 have emerged as promising cathode materials allowing higher cell voltage than a basic Lithium-Ion battery (>4.2V) and enhanced capacities (>200mAh/g).

The present report analyses the patent environment and notably highlights the strategy of current major players. These major patent holders are end-users (Panasonic, Samsung, Hitachi Ltd, Hitachi Maxell…), battery manufacturers (Sanyo, GS Yuasa, Envia Systems…), material manufacturers (Mitsubishi Chem., LG Chem., Sumitomo Chem., TOSOH Corp., 3M…) and institutional players (University of Chicago Argonne, AIST (JP), University of Osaka…)

In a competitive sector starting in the 1990s with key patents being filed as of 1999, this « IP Overview – Li-rich layered cathode materials » provides you with a comprehensive panorama of the intellectual property landscape (around 700 patent families analysed) and helps you:
- Position your company’s R&D and IP Portfolio
- Identify key inventors and key players involved in specific compositions
- Understand the collaboration networks and theirs dynamics

N.B.: A three months access to the full patent database is also included

Table Of Contents

Table of contents

Generalities

Brief outline of the technology
Major players involved in Li-rich layered cathodes
Roadmap of emerging battery technologies Patent Query

World analysis

Evolution of patent filings (1992-2010)
Main applicants
Breakdown of filings of the main institutional applicants over time
Breakdown of filings of the main industrial applicants over time
Co-filings between applicants
Industrial and institutional filings over time
Map of priority filings
Evolution of priority filings
Map of extensions
Breakdown of the portfolio
Most cited patent families
Most extended patent families
Granting rate analysis - JP, US, EP

Regional focus

For each regional focus is presented the following information:
• Industrial and institutional filings over time
• Main applicants
• Extensions
• Main co-filings between inventors
• Main co-filings between applicants
• Breakdown by applicant (Use of Li-rich material within the cathode, type of material…)


Japan focus
South Korea focus
USA focus
China -Taiwan focus

Conclusion

Portfolio average age of the studied applicants

Citation analysis

For each applicant focus is presented the following information:
• Evolution of patent filings
• Map of extensions
• Extension policy
• Portfolio mapping: Use of Li-rich within the cathode
• Portfolio mapping: Type of material
• Portfolio mapping: Coating Portfolio mapping (Elements substitution)



Panasonic- Sanyo
LG Chemical
Samsung SDI
Mitsubishi Chemical
Sumitomo Chemical
Hitachi
Hitachi Maxell
GS Yuasa
Toyota
Uchicago Argonne
Envia Systems

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