リチウムイオン電池の安全性と誤用耐性

当レポートでは、リチウムイオン電池の安全性と誤用耐性について調査し、電池の安全性に関する基本的知識、電池の故障と危険性・有害性、安全性の主な検証方法・手順、近年のリコールに学ぶ教訓などをまとめています。

第1章 電池の安全性：背景・基礎情報

• 基礎情報
• リコールの例
• 有害性・熱暴走
• 電池故障
• 安全装置

第2章 電池故障モード

• 電池故障について
• リチウムイオン電池の安全性・誤用特性評価検査
• 単電池の熱暴走
• 誤用耐性シミュレーション
• セル&パック設計の誤用反応への影響

第3章 安全性の検証：誤用試験の手法・手順

• 概要
• 出荷の手順
• 合否判定 vs 安全性特性試験
• 試験の手順の比較
• 機能的安全性
• 欠如している点

サマリー・総論

付録：標準化機構

Safety concerns arise when batteries are abused, used outside the design's operational space, poorly designed, or beyond useful life. Heat generation and gas generation are the most common responses of batteries to abusive conditions--the most serious consequences occur when the stored energy is rapidly released in an unintended manner, triggering thermal runaway. This report presents the fundamentals of battery safety and abuse tolerance. It discusses materials, cells, and battery system design, manufacturing, applications, and validation, as well as the lessons learned from recent failures. :

Benefits

Automakers, utility / industrial system integrators:

Consult the Report's critical review of cell, battery, and system safety to calibrate your own work in the field. :

Battery producers:

Use this all-inclusive assessment of cell, battery, and system safety and the challenges associated with abuse tolerance and safety validation. Enhance your understanding of this crucial aspect of the technology and its role in your development work.:

Material developers / producers:

Benefit from this unbiased expert assessment of materials, cell, and battery safety to sharpen your development strategy and funnel your R&D investment into the most promising technologies. :

Corporate and financial investors:

Gain insights into the single largest risk associated with advances in battery technology and the financial exposure related to any investment in the field, to hone your investment choices:

Table of Contents

1. Background and Fundamentals of Battery Safety

• Battery Safety Fundamentals
• Examples of Recent Safety Recalls
• Hazards & Thermal Runaway
• Cell Failures
• Safety Devices

2. Understanding Battery Failure Modes

• Understanding Battery Failures
• Li-Ion Battery Safety & Abuse Characterization Tests
• Propagation of Thermal Runaway of Single Cell
• Abuse Tolerance Simulation
• Effect of Cell and Pack Design on Abuse Response

3. Safety Validation: Abuse Testing Methods & Procedures

• General
• Shipping Procedures
• Pass/Fail vs. Safety Characterization Tests
• Test Procedure Comparisons
• Functional Safety
• What's Missing

Summary and Conclusions

Appendix: Organizations that Publish Safety Test Standards