Excellent energy storage performance of niobate-based glass-ceramics via introduction of nucleating agent  

作　　者：Changshuai Liu Shufeng Xie Hairui Bai Fei Yan Tongtong Fu Bo Shen Jiwei Zhai 

机构地区：[1]Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education,Functional Materials Research Laboratory,School of Materials Science and Engineering,Tongji University,Shanghai,201804,China

出　　处：《Journal of Materiomics》2022年第4期763-771,共9页无机材料学学报（英文）

基　　金：The authors acknowledge the Ministry of Science and Technol-ogy of China for its support through Project 973(Grant No.2015CB654601).

摘　　要：For glass-ceramics, how to realize the collaborative optimization of BDS and permittivity is the key toimprove the energy storage density. In this work, ZrO2 is introduced into BPKNAS glass-ceramics asnucleating agent to promote crystal development of glass-ceramics and then achieve high permittivity.When 1.5 mol% ZrO2 is added, the glass-ceramics have the highest permittivity (~128.59) and meanwhilepossess high BDS (1948.90 kV/cm) due to the dense microstructure. Therefore, BPKNAS-1.5ZrO2 glass-ceramics has the highest theoretical energy storage density (21.62 J/cm3). Moreover, the permittivityvariation of BPKNAS-1.5ZrO2 glass-ceramics is less than 6 % in the wide temperature range from 80 to300 C, showing excellent temperature stability. In addition, BPKNAS-1.5ZrO2 glass-ceramics possessesultrahigh power density, which reaches up to 382.40 MW/cm3 in overdamped circuit. The above evi-dence shows that BPKNAS-1.5ZrO2 glass-ceramics with ultrahigh energy storage density and powerdensity is very competitive in the field of energy storage applications.

关 键 词：GLASS-CERAMICS Nucleating agent PERMITTIVITY Energy storage density 

分 类 号：TQ171[化学工程—玻璃工业]