CORE
🇺🇦
make metadata, not war
Services
Services overview
Explore all CORE services
Access to raw data
API
Dataset
FastSync
Content discovery
Recommender
Discovery
OAI identifiers
OAI Resolver
Managing content
Dashboard
Bespoke contracts
Consultancy services
Support us
Support us
Membership
Sponsorship
Community governance
Advisory Board
Board of supporters
Research network
About
About us
Our mission
Team
Blog
FAQs
Contact us
锂离子电池大电流放电过程模拟研究
Authors
彭鹏
曹文炅
+5 more
王亦伟
董缇
蒋方明
郑耀东
雷博
Publication date
1 January 2020
Publisher
Abstract
随着锂离子电池的广泛应用,电池以更大功率、更高倍率运行的需求日益迫切,探索锂离子电池大电流运行时的电-热行为及内部关键参数演化十分必要。建立了锂离子电池的电化学-热(ECT)模型和电池材料的热滥用模型,模拟了方形单层LiCoO2/C电芯在不同放电电流下的电-热行为,对比分析了电池分别以1C和14C倍率放电时电池内部关键电化学参数的演化过程。结果表明:随着放电电流增加,电池内部积聚的热量会引发材料的放热反应,有引发电池热失控的可能性;大电流放电过程电解液中锂离子浓度、输运电流密度、过电势、电解质电势和固相颗粒表面的锂离子浓度波动较大,在电池内部相关区域形成了明显的浓度差、密度差和电势差
Similar works
Full text
Available Versions
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/34706
Last time updated on 04/12/2021
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/34708
Last time updated on 04/12/2021