Beyond Intercalation-Based Li-Ion Batteries: The State of the Art and Challenges of Electrode Materials Reacting Through Conversion Reactions
Beyond Intercalation-Based Li-Ion Batteries: The State of the Art and Challenges of Electrode Materials Reacting Through Conversion Reactions
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DOI：
10.1002/adma.201000717
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发表时间：
2010-09-15
影响因子：
29.4
通讯作者：
Rosa Palacin, M.
中科院分区：
文献类型：
--
作者：
Cabana, Jordi;Monconduit, Laure;Rosa Palacin, M.
尽管锂离子电池即将在电动汽车中投入商业使用，并被提议用作基于可再生能源技术的智能电网的使能器，但对能够提高能量密度、循环寿命、成本和安全性的新电极材料的密集探索仍在进行中。这份进展报告重点介绍了在锂离子电池中使用通过转化反应进行反应的相作为正负极材料的最新发展和未来前景。通过超越经典的插层反应，可以获得各种低成本的化合物，其重量比容量是目前使用的材料(如石墨和LiCoO2)的两到五倍。尽管如此，目前有几个因素阻碍了需要进行转化反应的电极材料的适用性。本报告回顾了这些因素，以及充分评估这一概念的实用性所必需的科学突破。
Despite the imminent commercial introduction of Li-ion batteries in electric drive vehicles and their proposed use as enablers of smart grids based on renewable energy technologies, an intensive quest for new electrode materials that bring about improvements in energy density, cycle life, cost, and safety is still underway. This Progress Report highlights the recent developments and the future prospects of the use of phases that react through conversion reactions as both positive and negative electrode materials in Li-ion batteries. By moving beyond classical intercalation reactions, a variety of low cost compounds with gravimetric specific capacities that are two-to-five times larger than those attained with currently used materials, such as graphite and LiCoO2, can be achieved. Nonetheless, several factors currently handicap the applicability of electrode materials entailing conversion reactions. These factors, together with the scientific breakthroughs that are necessary to fully assess the practicality of this concept, are reviewed in this report.