锂电池基础科学问题(Ⅰ)——化学储能电池理论能量密度的估算  

Fundamental scientific aspects of lithium batteries(Ⅰ)——Thermodynamic calculations of theoretical energy densities of chemical energy storage systems

作　　者：彭佳悦[1] 祖晨曦[1] 李泓[1] 

机构地区：[1]中国科学院物理研究所,北京100190

出　　处：《储能科学与技术》2013年第1期55-62,共8页Energy Storage Science and Technology

基　　金：中国科学院知识创新工程方向性项目(KJCX2-YW-W26);国家重点基础研究发展计划(973)项目(2012CB932900)

摘　　要：本文主要讨论电池的能量密度。基于热力学数据,根据能斯特方程,可以计算不同电化学反应体系的理论能量储存密度,从而了解化学储能体系理论能量密度的上限,了解哪些体系能够实现更高的能量密度,哪些材料具有更高的电压。Improving performances of current Li-ion batteries and developing new rechargeable electrochemical energy storage devices are highly desirable. The latter depends on successful developments of new materials, battery units and battery system optimization. This calls for radical changes in the methodology from the currently commonly used trial-and-error to rational designs based upon fundamental understanding of underlying physics and chemistry. This series papers will discuss various aspects including thermodynamic, kinetic, interracial, materials, battery units and systems, and characterization techniques. This will hopefully shed some light on the research and development of new chemical energy storage technologies particularly batteries. This is the first paper in the series and will discuss the energy densities of batteries, showing theoretical calculations of energy storage densities of electrochemical energy storage systems from the Nernst equation, the limitation of chemical energy storage systems, and estimation of voltages of the electrode materials.

关 键 词：化学储能电池 理论能量密度 理论电位 热力学计算 

分 类 号：O646.21[理学—物理化学]