Achieving higher energy density is a very important target for the next-generation lithium-ion batteries (LIBs), which requires the innovation of electrode materials. Using multi-electron reaction electrodes for higher capacity is an effective approach to achieve the goal for higher energy density. Vanadium-based materials are an important group that can realize multi-electron reactions because of the rich valence variation of vanadium and have received great attention for high-capacity LIB electrodes through the history for battery researches in the past 40 years. In this review, we focus on the typical vanadium-based multi-electron reaction electrodes and discuss the structure/performance relationships, electrochemical mechanisms, issues, and optimization strategies, with emphasis on the challenges and opportunities of vanadium-based multi-electron reaction electrodes for next-generation LIBs.

对于下一代锂离子电池（LIB），实现更高的能量密度是非常重要的目标，这需要电极材料的创新。将多电子反应电极用于更高的容量是实现更高能量密度目标的有效方法。钒基材料由于钒的丰富价态变化而成为能够实现多电子反应的重要组，并且在过去40年的电池研究历史中，高容量LIB电极受到了极大的关注。在这篇综述中，我们将重点介绍典型的钒基多电子反应电极，并讨论其结构/性能关系，电化学机理，问题和优化策略，