文章信息/Info

Title:

Functional Applications of Borohydrides for Hydrogen or Electricity Conversion and Storage

文章編號:

1674-3962(2022)04-0275-13

作者:

李晨1; 李文晶2; 任開響1; 李永濤1; 張慶安1

（1.安徽工業(yè)大學材料科學與工程學院，安徽 馬鞍山 243002）

（2.國家石油儲備中心，北京 100045）

Author(s):

LI Chen1;  LI Wenjing2;  REN Kaixiang1;  LI Yongtao1;  ZHANG Qingan1

(1. School of Materials Science and Engineering, Anhui University of Technology, Maanshan 243002, China)

(2. National Petroleum Reserve Center, Beijing 100045, China)

關鍵詞:

二次能源; 硼氫化物; 儲氫; 固體電解質(zhì); 電池

Keywords:

secondary energy;  borohydrides;  hydrogen storage;  solid electrolyte;  batteries

分類號:

TK91；TQ116.2

DOI:

10.7502/j.issn.1674-3962.202105007

文獻標志碼:

A

摘要:

面向“碳中和”重大戰(zhàn)略需求，發(fā)展可再生二次能源成為我國重要能源戰(zhàn)略舉措。然而，如何實現(xiàn)氫能和電能的高效存儲與轉(zhuǎn)換成為當前制約二次能源規(guī)模化應用的“瓶頸”。其中，尋找和開發(fā)合適的輕質(zhì)載體材料是關鍵。硼氫化物大多屬于含共價鍵的離子型配位化合物，熱力學穩(wěn)定性高，易發(fā)生多晶型轉(zhuǎn)變，具有離子電導特性，其高溫相的離子遷移率接近常用的液態(tài)有機電解質(zhì)，同時還具有較高的含氫量和大量氫鍵，因而在二次能源的存儲與轉(zhuǎn)換過程中可發(fā)揮多重載體作用。概述了硼氫化物在固態(tài)儲氫、水解制氫、全固態(tài)電池和太陽能電池方面的功能性應用，重點討論了其制備方法、微觀結(jié)構和性能改善機制，旨在明確硼氫化物在能源存儲與轉(zhuǎn)換中存在的關鍵問題及可能的解決途徑。

Abstract:

In response to the major national strategy of “carbon neutral”, developing the renewable secondary energy has become an important measure in China. However, how to realize the efficient storage and conversion of hydrogen and electric energy has been the bottleneck that restricts the large-scale application of secondary energy at present. The key is to find and develop the suitable lightweight carrier materials. Most borohydrides are ionic coordination compounds containing covalent bonds. They have high thermodynamics stability, ionic conductivity characteristics and are easy to undergo polymorphic transformation. Especially, their high temperature ionic conductivity is close to that of conventional liquid electrolytes. Moreover, due to the high content of hydrogen and hydrogen bonds, they can play multi-carrier roles in the storage and conversion of secondary energy. This review summarizes the functional applications of borohydride in solid-state hydrogen storage, hydrolytic hydrogen production, all-solid-state batteries and solar cells focousing on their preparation, microstructures and performance improvement mechanisms, which aims at clarifying the key problems and possible solutions in energy storage and conversion.