• Japanese
  • Korean
  • Chinese
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LTO Electrodes for Li-ion Batteries Patent Mapping 2012

IP Overview presents a patent mapping analysis of the “LTO electrodes for Li-ion batteries” field.

In the current roadmap on emerging battery technologies, Lithium Titanate (LTO) raises high hope concerning the possibility of high rate capability, fast charge, wide operating temperature range and long life cycle. Its lower operating voltage that can be considered as a handicap also brings a significant advantage in terms of safety. The LTO anodes are therefore of crucial interest for battery manufacturers and end-users of batteries.

This interest results in a very high research and patenting activity in the last five years. With the near expiry of the historical patents (like the US5545468 Panasonic patent in 2013), many actors are building up their portfolio in order to acquire a blocking position.

The present report analyses the patent environment and notably highlights the strategy of current major players. These major players are end-users (Toshiba, Panasonic-Sanyo, Toyota, ...), battery manufacturers (GS Yuasa, Enerdel, Altairnano...), material manufacturers (Ishihara Sangyo Kaisha, LG Chemical, ATL, Titan Kogyo, Toho Titanium... ) and institutional entities (University of Tsinghua, CEA, Argonne National Laboratory, Chinese Academy of Science (CAS), Central South University).

In a sector where 960 patents and patent applications have been filed, this «IP Overview - LTO Electrodes for Li-ion Batteries» also focuses on the emergence of Korean (Samsung SDI), Japanese (Murata Manufacturing), Taiwanese (Hon Hai Prec), European (Süd Chemie) and Chinese manufacturers (ATL, McNair Technology and Liyuan Power Group) and provides you with a comprehensive panorama of the intellectual property landscape and helps you:

  • Position your company's R&D and IP Portfolio
  • Identify key inventors and key players involved in specific compositions of anodes
  • Understand the collaboration networks and theirs dynamics

Evolution of patent filings (1981-2011)

An initial phase of filings occurred in the early 1990's. Between 1996 and 2003, key patents were filed and players started constituting their portfolios. As of 2004, a strong increase in filings can be observed to reach around 200 patent applications in 2010.

For a deeper analysis

3 months full access to the patent database :

  • Interactive graphs and tables
  • Access to the patent texts

We can provide you the patent list corresponding to:

  • A specific applicant portfolio
  • Patents filed a precise year
  • Patents filed in a specific country
  • Patents concerning a specific category

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Table of Contents

Generalities

  • Brief outline of the technology
  • Brief outline of the market
  • Roadmap of emerging battery technologies
  • Patent Query

World analysis

  • Evolution of patent filings (1981-2011)
  • Main applicants
  • Breakdown of filings of the main institutional applicants over time
  • Breakdown of filings of the main industrial applicants over time
  • Main co-filings between applicants
  • Industrial & institutional filings over time
  • Map of priority filings
  • Evolution of priority filings
  • Comparison between place of filings and origin of the inventors
  • Map of extensions
  • Breakdown of the portfolio
  • Most cited patent families
  • Most extended patent families
  • Granting rate analysis - JP, US, EP

Regional focus

  • Japan focus
  • China - Taiwan focus
  • USA - Canada focus
  • South Korea focus
  • Europe focus

For each regional focus is presented the following information

  • Industrial & institutional filings over time
  • Main applicants
  • Extensions
  • Main co-filings between inventors
  • Main co-filings between applicants
  • Breakdown by applicant

Conclusion

Portfolio average age of the studied applicants

Citation analysis

Applicant focus

  • TOSHIBA
  • PANASONIC-SANYO
  • TOYOTA
  • GS YUASA
  • SAMSUNG SDI
  • UNIV TSINGHUA
  • MEDTRONIC
  • ISHIHARA SANGYO KAISHA
  • LG CHEMICAL
  • CEA
  • ALTAIRNANO
  • TOHO TITANIUM

For each applicant focus is presented the following information

  • Evolution of patent filings
  • Map of extensions
  • Extension policy
  • Portfolio mapping: Content of the patents
  • Portfolio mapping: LTO Coverage
  • Portfolio mapping: Type of titanate
  • Portfolio mapping: Carbon use
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