文章信息/Info

Title:

Research Progress of Rare Earth Hydrogen Storage Materials

文章編號:

1674-3962(2023)02-0098-07

作者:

苑慧萍1;  2;  3; 李志念1;  2;  3; 沈浩1;  2;  3; 蔣利軍1;  2;  3

（1. 有研工程技術研究院有限公司，北京 101407） (2. 有研科技集團有限公司 國家有色金屬新能源材料與制品工程技術研究中心，北京 100088) (3. 北京有色金屬研究總院，北京 100088）

Author(s):

YUAN Huiping1; 2; 3;  LI Zhinian1; 2; 3;  SHEN Hao1; 2; 3;  JIANG Lijun1; 2; 3

(1. GRIMAT Engineering Institute Co., Ltd., Beijing 101407, China) (2. National Engineering Research Center of Nonferrous Metals Materials and Products for New Energy, GRINM Group Co., Ltd., Beijing 100088, China) (3. General Research Institute for Nonferrous Metals, Beijing 100088, China）

關鍵詞:

稀土儲氫材料; 電化學性能; 儲氫性能; 相結構

Keywords:

rare earth-based hydrogen storage materials;  electrochemical performance;  hydrogen storage properties;  phase structure

分類號:

TG139+.7

DOI:

10.7502/j.issn.1674-3962.202210004

文獻標志碼:

A

摘要:

稀土儲氫材料具有易活化，吸放氫平臺平坦、壓力適中、壓差小，抗雜質氣體中毒性能好，適合室溫操作等優點，作為鎳氫二次電池（Ni/MH）電極材料被廣泛應用，在氫燃料電池領域作為安全高效的儲氫材料也發揮著越來越重要的作用。綜述了目前面向應用的LaNi5型和超晶格型稀土儲氫材料近些年的主要研究進展，重點介紹了組分優化、結構控制和性能衰減機理方面的研究，最后討論了稀土儲氫材料應用面臨的挑戰和未來的發展方向。我國稀土資源豐富，大力拓展稀土儲氫材料在氫能和二次電池產業的應用，對我國稀土資源的綜合利用具有重大的戰略意義。

Abstract:

Rare earth hydrogen storage materials have the advantages of easy activation, flat hydrogen absorption and desorption platforms, moderate pressure, small differential pressure, good resistance to impurity gas poisoning, and room temperature operation ability. They are widely used as electrode materials for Ni/MH secondary batteries, and play an increasingly important role in the field of hydrogen fuel cells as safe and efficient hydrogen storage materials. In this paper, the main research progress of LaNi5 type and superlattice type rare earth hydrogen storage materials in recent years is reviewed, from three aspects of composition optimization, structure control and properties attenuation mechanism. Finally, the challenges faced by the application of rare earth hydrogen storage materials and the future development direction are discussed. Our country is rich in rare earth resources, to vigorously expand the application of rare earth hydrogen storage materials in hydrogen energy and secondary battery industries, it is of great strategic significance for the comprehensive utilization of rare earth resources in China.