文献类型：期刊文献

中文题名：锂离子电池储能安全技术的发展态势——从全球专利数据分析我国的发展现状

英文题名：Development trend of lithium-ion battery safety technology for energy storage—Analysis of China's development status from global patent data

作者：霍丽萍[1];栾伟玲[2];庄子贤[2]

机构：[1]华东理工大学科技信息研究所;[2]华东理工大学机械与动力工程学院,石化行业动力电池系统与安全重点实验室,上海200237

年份：2022

卷号：11

期号：8

起止页码：2671

中文期刊名：储能科学与技术

外文期刊名：Energy Storage Science and Technology

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

语种：中文

中文关键词：锂离子电池;储能;安全技术;专利分析

外文关键词：lithium-ion battery;energy storage;safety technology;patent analysis

摘要：电池储能是能源利用的重要环节,电池安全性是储能技术应用的前提和保障。为了解锂离子电池储能技术领域的全球发展态势,分析我国的发展现状,发现未来发展方向,本文基于IncoPat专利数据库进行检索,总结全球及中国专利申请数量的变化规律,对比分析专利主要来源国和主要申请人的申请情况及专利价值。基于IPC技术分类,通过技术主题分布分析专利技术的不同领域分支及技术主题的发展趋势。研究发现,在有关锂离子电池储能应用安全技术的专利申请数量方面,我国和全球的发展态势一致,呈持续增长趋势。虽然来自我国申请人的专利数量最多,但合享价值度高的专利占比少,并且专利布局主要局限于本国,说明我国企业在关键技术的掌控上与日企和美企仍存在较大差距。目前全球该领域的专利研究主题主要分布在电池材料改进、状态监测、故障诊断及早期预警、热管理、电路平衡管理以及防火防爆灭火技术等方面。
Lithium-ion battery energy storage is an important aspect of power energy utilization,and safety is the premise that guarantees the application of energy storage technology.To understand the global development trend of technology in this field,this paper summarizes and analyzes the evolution trend of global and Chinese annual patent applications and compares and analyzes the main source countries of patent applicants,as well as the patent applications and patent value of the main applicants based on the search results of the IncoPat patent database.Based on the IPC technology classification,this paper summarizes the technical composition of the main applicant's research and development,the different branches of patented technology through the technical subject distribution,and the development trend of various technical subjects.According to the findings of the study,the number of applications for safety technology patents in the field of lithium-ion battery energy storage is consistent with the global development trend,which has been gradually increasing.Although the number of patents from Chinese applicants is the largest,the value of sharing is high;however,the proportion of patents is relatively small.The patent structure is primarily limited to the country,indicating that there is still a significant gap in key technology control between Chinese and Japanese and US companies.Current safety application technology branches in the field of lithium-ion battery energy storage primarily include battery material improvement,condition monitoring,diagnosis and early warning,thermal management,circuit balance management,and fire and explosion-proof fire-extinguishing technology.