市場調査レポート

リチウム2次電池の主要特許分析:セパレーターコーティングおよび表面処理

Li Secondary Battery Key Patent Analysis : Separator Coating and Surface Treatment

発行 SNE Research 商品コード 252893
出版日 ページ情報 英文 87 Pages
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リチウム2次電池の主要特許分析:セパレーターコーティングおよび表面処理 Li Secondary Battery Key Patent Analysis : Separator Coating and Surface Treatment
出版日: 2012年09月03日 ページ情報: 英文 87 Pages
概要

1990年1月1日から2012年6月30日に韓国、米国、日本および欧州で出願された特許1185件の中から特に目だった218件を抽出しています。特許はコーティングと表面改質の二つに分類され、さらに無機物、ポリマーおよび合成物に区分して分析しています。

当レポートでは、リチウム2次電池のセパレーターコーティングと表面改質に関する特許の分析を提供しており、全体的な特許動向、国・年度・技術別の特許動向、出願者、技術開発動向、および特許論争などの分析をまとめ、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

  • 特許動向全般
    • 特許割合・動向:国・年度別
    • 特許割合・動向:年度別(区分)
    • 特許割合・動向:年度別(セクション)
      • フィルムコーティング技術の特許割合・動向
      • 表面改質技術の特許割合・動向
    • 特許割合:国・技術タイプ別
      • 米国
      • 日本
      • 韓国
      • 欧州
  • 主要出願者の分析
    • 世界の主要特許出願者
    • 主要出願者:技術タイプ別
      • フィルムコーティング技術の特許割合:出願者別
      • 表面改質技術の特許割合:出願者別
      • 主要出願者のランキング:セクション別
    • 主要出願者のランキング:国別
  • 特許動向:主要出願者別
    • 主要出願者の特許動向全般:年度別
    • 主要出願者の技術集中分野
      • 米国
      • 日本
      • 韓国
      • 欧州
    • 米国の特許(発行済み)のインデックス分析:主要出願者別

第3章 詳細分析

  • 詳細分析:主要出願者別
  • 技術開発動向の分析
    • 主要特許の選定:技術タイプ別
    • 技術進歩チャート:技術タイプ別
    • 技術進歩チャート:主要企業別
  • 主要発明者の分析
    • 主要発明者の選定
    • 主要発明者の分析図
  • 国内・海外における論争の分析
    • 主要企業の選定
    • 米国における大手企業間の論争の現況
    • 韓国における大手企業間の論争の現況
      • 韓国企業と外国企業間の論争
      • 韓国企業間の論争

第4章 結論

  • 特許動向分析:結論・予測
  • 詳細分析:結論・予測

付録1.技術開発動向の分析で取り上げた主要特許のサマリーリスト

目次
Product Code: R076SB2012018

Abstract

Description

Drawing attention as one of main components of EVs as well as small batteries for IT devices and also aiming at the ESS market as well

This report is intended to provide information about patent trends on "separator coating and surface modification" among technologies for secondary battery separators to related companies and research institutes.

Polyolefin-based separators are the most widely used commercial separators. However, the demand for high capacity and output batteries are gradually increasing, which brings about increasing concern about battery safety. In terms of battery safety, polyolefin-based separators, which show severe thermal contraction at high temperature and physical vulnerability, cause a lot of problems. High temperature storage and overcharge of batteries are highly related to thermal stability of separators, and battery safety issues caused by nail penetration and impurities are related to the mechanical properties of separators.

Meanwhile, the issue of wettability with electrolytes is getting serious, as batteries become bigger. In addition, the demand for low-cost batteries is also increasing, as application to electric vehicles is on the track. Considering that separators account for a large portion of the production cost of EV batteries, there is urgent need to solve this problem as well as other technical issues. Thus, there has recently been active effort to solve a lot of problems of existing polyolefin-based separators. This report covers patents on surface modification of separators, which are being developed to improve ceramic composite technologies and affinity with electrolytes.

Among patents that have been filed in Korea, the United States, Japan, and Europe from January 1, 1990 to June 30, 2012, total 1,185 patents were selected, from which 218 effective patents were extracted. Those patents were classified into two categories, coating and surface modification, and then sub-divided into inorganic matters, polymers, and composites for analysis.

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In particular, this report on separator patent analysis provides in-depth research and survey of patent disputes over separators between companies.

Strong Points of the report

  • Specialized patent analysis on separator coating and surface modification for lithium secondary batteries
  • In-depth analysis of patent disputes
  • General and in-depth analysis of key patents
  • Analysis of summaries of key patents
  • An list of effective patents (Excel file)
  • (*You can get a discount on this file by purchasing the report)

Table of Contents

1. Introduction

  • 1.1 Background and purpose
    • 1.1.1 Background
    • 1.1.2 Purpose
  • 1.2 Scope of analysis
  • 1.3 Analysis criteria
    • 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 In-depth Analysis Method

2. Patent Trend Analysis

  • 2.1 Overall Patent Trend
    • 2.1.1 Patenting rate and trend of each country by year
    • 2.1.2 Patent rate and trend by year (division)
    • 2.1.3 Patent rate and trend by year (section)
      • 2.1.3.1 Patent rate and trend on film coating technologies (section)
      • 2.1.3.2 Patent rate and trend on surface modification technologies ( section)
    • 2.1.4 Patent rate of each country by technology type
    • 2.1.4.1 Patent rate by technology type (USA)
    • 2.1.4.2 Patent rate by technology type (Japan)
    • 2.1.4.3 Patent rate by technology type (Korea)
    • 2.1.4.4 Patent rate by technology type (Europe)
  • 2.2 Analysis of major applicants
    • 2.2.1 Major patent applications worldwide
    • 2.2.2 Major applicants by technology type
      • 2.2.2.1 Patent rate of film coating technologies by applicant
      • 2.2.2.2 Patent rate of surface modification technologies by applicant
      • 2.2.2.3 Major applicant rankings by section
    • 2.2.3 Major applicant rankings by country
  • 2.3 Patent trend by major applicant
    • 2.3.1 Overall patenting trend of major applicants by year
    • 2.3.2 Technology focus area of major applicants
      • 2.3.2.1 Technology focus area of major applicants (USA)
      • 2.3.2.2 Technology focus area of major applicants (Japan)
      • 2.3.2.3 Technology focus area of major applicants (Korea)
      • 2.3.2.4 Technology focus area of major applicants (Europe)
    • 2.3.3 Index analysis of U.S. patents (issued) by major applicants

3. In-depth analysis

  • 3.1 In-depth analysis by major applicant
  • 3.2 Technology development trend analysis
    • 3.2.1 Selection of major patents by technology type
    • 3.2.2 Technology progress chart by technology type
    • 3.2.3 Technology progress chart 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 disputes at home and abroad
    • 3.4.1 Selection of major companies
    • 3.4.2 Current status of disputes between major companies in USA
    • 3.4.3 Current status of disputes between major companies in Korea
      • 3.4.3.1 Disputes between Korean and foreign companies in Korea
      • 3.4.3.2 Disputes between Korean companies in Korea
        • 3.4.3.2.1 Screening history of patents at issue
        • 3.4.3.2.2 Analysis of scope of rights of patents at issue
        • 3.4.3.2.3 Screening history of U.S. patents based on patents at issue
        • 3.4.3.2.4 Analysis of scope of rights of U.S. patents at issue based on patents at issue
        • 3.4.3.2.4 Forecast of patent disputes

4. Conclusion

  • 4.1 Patent trend analysis: conclusions and implications
  • 4.2 In-depth analysis: Conclusion and implications of

Appendix 1. A list of summaries of major patents selected in Technology Development Trend Analysis

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