文章信息/Info

Title:

Research Progress on Alloy Anode Materials for Sodium Ion Batteries

作者:

劉 創; 盧海燕; 曹余良

武漢大學化學與分子科學學院

Author(s):

LIU Chuang; LU Haiyan; CAO Yuliang

College of Chemistry and Molecular Science, Wuhan University

關鍵詞:

鈉離子電池; 負極; 合金; 機理; 銻; 錫; 磷

Keywords:

Sodium ion battery;  anode;  alloy;  mechanism;  Antimony;  Tin;  Phosphorus

DOI:

10.7502/j.issn.1674-3962.2017.10.05

文獻標志碼:

A

摘要:

鈉離子電池由于具有資源豐富，價格低廉等特點，逐漸成為大規模儲能領域的研究熱點。而負極材料作為鈉離子電池的重要組成部分，對電池性能有著直接的影響。在目前所研究的負極材料中，合金類負極材料由于具有較高的理論比容量而受到了人們的廣泛關注。但是在反應過程中，合金類材料面臨著嚴重的體積膨脹問題，循環穩定性差，這制約了其發展。研究者通過包覆，納米化，與其他金屬復合等方法大大改善了合金類材料的循環性能。本文簡介了合金類儲鈉負極材料Sn、Sb、P、Ge、Bi、Pb和Si的研究進展以及反應機理，探討了合金類負極材料所面臨的問題和解決辦法，并對合金類負極材料的發展方向進行了展望。

Abstract:

Sodium-ion batteries (SIBs) have attracted wide attention in the field of large-scale energy storage systems because of the extensive sources and low cost of sodium compounds. Anode materials have a great influence on the performance of batteries. Amongst various anode materials, alloy anode materials have caused extensive concern due to high capacity. However, the poor cycling stability resulting from severe volume expansion during charging and discharging hinders the development of alloy anode materials. Recently, the cycling stability of alloy materials has been greatly enhanced by coating, nanosizing or intermetallics. In this paper, we briefly review the research progress and reaction mechanism of Sn, Sb, P, Ge, Bi, Pb and Si materials alloying with sodium, discuss the problems of the alloy materials and the ways to solve them. Finally, we prospect the future development tendency of alloy anode materials for sodium-ion batteries.