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リチウムイオン二次電池の特許分析:シリコンベースの高容量アノード材料

Li-ion Secondary Battery Patent Analysis: Si-based High Capacity Anode Materials

発行 SNE Research 商品コード 249667
出版日 ページ情報 英文 90 Pages
納期: お問合せ
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こちらの商品の販売は終了いたしました。
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リチウムイオン二次電池の特許分析:シリコンベースの高容量アノード材料 Li-ion Secondary Battery Patent Analysis: Si-based High Capacity Anode Materials
出版日: 2012年07月11日 ページ情報: 英文 90 Pages

当商品の販売は、2018年07月02日を持ちまして終了しました。

概要

2011年現在、リチウムイオン二次電池のアノード材料の97%以上はグラファイトが占めています。残りの3%を占めるのが高性能アノード材料であり、これらはグラファイトより高額ながらも充電特性などの性能に重きを置かれています。高性能アノード材料の市場の近年の成長率は約1%に過ぎませんが、既存のグラファイトアノード材料に代わり、大きな市場に発展するとも予測されています。

当レポートでは、シリコンベースのアノード材料に関する特許動向について調査分析し、主要国における出願の動向とサブカテゴリー・技術・譲受人別の割合、技術開発の動向、発明者の分析、特許訴訟の分析などをまとめ、概略以下の構成でお届けいたします。

第1章 イントロダクション

第2章 特許動向分析

  • 全体的な特許動向
    • 各国の特許出願の割合・特許動向:年別
    • 特許出願の割合・特許動向:年別(中間カテゴリー)
    • 特許出願の割合・特許動向:年別(サブカテゴリー)
      • シリコン単一素材の特許出願の割合・特許動向:サブカテゴリー別
      • シリコン複合材の特許出願の割合・特許動向:サブカテゴリー別
      • シリコン薄膜の特許出願の割合・特許動向:サブカテゴリー別
    • 各国の特許出願の割合:技術別
      • 特許出願の割合:技術別(米国)
      • 特許出願の割合:技術別(日本)
      • 特許出願の割合:技術別(韓国)
    • 特許出願の割合:技術別(欧州)
  • 主な譲受人(出願人)の分析
    • 複数の出願に基づく主な譲受人
    • 主な譲受人:技術別
      • シリコン単一素材の特許出願の割合:譲受人別
      • シリコン複合材の特許出願の割合:譲受人別
      • シリコン薄膜の特許出願の割合:譲受人別
      • 複数の出願ランキング:サブカテゴリー別
    • 複数の出願ランキング:国別
  • 主要特許動向:主な譲受人別
    • 主な譲受人の全体的な特許動向:年別
    • 各国の技術焦点:主な譲受人別
      • 技術焦点:主な譲受人別(米国)
      • 技術焦点:主な譲受人別(日本)
      • 技術焦点:主な譲受人別(韓国)
      • 技術焦点:主な譲受人別(欧州)
    • 米国特許の主な譲受人のインデックス分析

第3章 詳細分析

  • 詳細分析:主な譲受人別
  • 技術開発動向分析
    • 主要特許:技術別
    • 技術開発:技術別
    • 技術開発:主要企業別
  • 主な発明者の分析
  • 米国における特許訴訟の分析

第4章 総論

  • 総論・特許動向分析の意義
  • 総論・詳細分析の意義
目次
Product Code: R069SB2012015

Abstract

Description

Si-based high capacity anode materials drawing intense interest as next-generation anode materials

As of 2011, graphite is accounting for more than 97% of anode materials for li-ion secondary batteries in the world regardless of natural or artificial graphite. Recently, the percentage of natural graphite, which is available at relative low prices, is increasing.

The remaining 3% is occupied by high performance anode materials: these materials give priority consideration to performance such as charging characteristics, even though they are more expensive than graphite anode materials. The high performance anode material market has recently grown by about 1%, even though it is insignificant. In addition, these materials are expected to substitute existing graphite anode materials, developing a great market.

These high performance anode materials include soft carbon, and hard carbon, which are based on carbon like Si-based anode materials, Sn-based anode materials, LTO-based anode materials and graphite, but do not have the multi-layer crystal structure of graphite.

Among them, lithium or Si metal has theoretical capacity of more than 3000mAh/g, which is 10 time higher than 370mAh/g of graphite. However, it is impossible to use these metal anode active materials themselves, since they cause volume expansion of hundreds %. Thus, there are aggressive efforts to study methods of alloying, combining with carbon, or nanoizing those materials to suppress anode disintegration caused by volume expansion.

image1

This report specialized in Si-based materials of which the use is expected to increase as high capacity anode materials provides analysis of patents that had been filed from January 1, 1990 to May 31, 2012. Total 1,144 patents filed in Europe, Korea, and Japan as well as the United States have been analyzed. Si-based anode materials are classified into monomaterials using only Si, composites, and Si thin-film, which are subdivided again. The feature that sets this report apart from other reports on patents is in-depth analysis.

image2

The in-depth analysis embraces patent trend analysis including the percentage of patent applications, patent trends for the recent 10 years, and technology focus by assignee, technology development trends through analysis of major patents by technology, information about assignees who filed multiple patents by country, and analysis of patent disputes between major companies which are selected based on patenting activities and market shares.

This report is expected to be a good guideline for research institutes and companies which are planning to develop Si-based anode materials or enter the market.

Key points of this report

  • Focuses on Si-based anode material technologies which are expected to grow rapidly;
  • Provides insight through in-depth analysis as well as general patent trends
  • Analyzes patents filed from January 1, 1990 to May 31, 2012;
  • Analyzes all patents filed in the United States, Japan, Korea, and Europe;
  • Provides case study of patent infringement between anode material sellers and patent holding groups.
  • Provides a list of effective patents (sold separately)

Table of Contents

1. Introduction

  • 1.1 Background and objective
    • 1.1.1 Background
    • 1.1.2 Objective of analysis
  • 1.2 Scope of analysis
  • 1.3 Criteria for analysis
    • 1.3.1 Technology classification
    • 1.3.2 Search method
    • 1.3.3 Analysis method
      • 1.3.3.1 Method of patent trend analysis
      • 1.3.3.2 Method of in-depth analysis

2. Patenting trend analysis

  • 2.1 Overall patenting trend
    • 2.1.1 Percentage of patent applications and patenting trend of each country by year
    • 2.1.2 Percentage of patent applications and patenting trend by year (intermediate category)
    • 2.1.3 Percentage of patent applications and patenting trend by year (sub- category)
      • 2.1.3.1 Si monomaterials Percentage of patent applications and patenting trend by subcategory
      • 2.1.3.2 Si composites- Percentage of patent applications and patenting trend by subcategory
      • 2.1.3.3 Si thin-film- Percentage of patent applications and patenting trend by subcategory
    • 2.1.4 Percentage of patent applications of each country by technology
      • 2.1.4.1 Percentage of patent applications by technology (USA)
      • 2.1.4.2 Percentage of patent applications by technology (Japan)
      • 2.1.4.3 Percentage of patent applications by technology (Korea)
      • 2.1.4.4 Percentage of patent applications by technology (Europe)
  • 2.2 Analysis of major assignees
    • 2.2.1 Major assignees based on multiple applications
    • 2.2.2 Major assignees by technology
      • 2.2.2.1 Si monomaterials-percentage of patent applications by assignee
      • 2.2.2.2 Si composites-percentage of patent applications by assignee
      • 2.2.2.3 Si thin-film-percentage of patent applications by assignee
      • 2.2.2.4 Ranking of multiple applications by subcategory
    • 2.2.3 Ranking of multiple applications by country
  • 2.3 Key Patenting trend by major assignee
    • 2.3.1 Overall patenting trend of major assignees by year
    • 2.3.2 Technology focus of each country by major assignee
      • 2.3.2.1 Technology focus by major assignee (USA)
      • 2.3.2.2 Technology focus by major assignee (Japan)
      • 2.3.2.3 Technology focus by major assignee (Korea)
      • 2.3.2.4 Technology focus by major assignee (Europe)
    • 2.3.3 Index analysis of major assignees based on U.S. patent

3. In-depth analysis

  • 3.1 In-depth analysis by major assignee
  • 3.2 Technology development trend analysis
    • 3.2.1 Major patents by technology
    • 3.2.2 Technology development by technology
    • 3.2.3 Technology development by major company
  • 3.3 Analysis of major inventors
    • 3.3.1 Selection of major inventors
    • 3.3.2 Analysis table of major inventors
  • 3.4 Analysis of patent disputes in USA
    • 3.3.1 Selection of major companies
    • 3.3.2 Patent disputes in USA by major company

4. Conclusion

  • 4.1 Conclusions and implications of patent trend analysis
  • 4.2 Conclusion and implications of in-depth analysis

* Attachment 1. A list of patent summaries of major patents selected in Technology Development Trend Analysis

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