摘要
Titanium dioxide is considered to be promising anode for sodium-ion batteries due to stable structure during the charge/discharge process.However,its practical application is hindered by the slow electron/ion transport.Herein,phosphorus-doped anatase TiO_(2) nanoparticles with oxygen vacancies are successfully synthesized and utilized as high-performance sodium-storage materials.The dual strategy of phosphorus-doping and oxygen vacancies can concurrently boost electronic conductivity and adjust ion diffusion kinetics.They significantly contribute to the improved rate performance(167 mAh·g^(-1) at 20.0C)and stable cycling(95.9%after 2000 cycles at 20.0C).The proposed dual strategy can be potentially used to improve other oxide anodes for rechargeable batteries.
出处
《Rare Metals》
SCIE
EI
CAS
CSCD
2022年第4期1284-1293,共10页
稀有金属(英文版)
基金
the National Natural Science Foundation of China(Nos.91961126 and 22078029)
Zhejiang Provincial Natural Science Foundation(No.LR21E020003)
Postgraduate Research&Practice Innovation Program of Jiangsu Province(No.SJCX21_1180)
Jiangsu Development&Reform Commission and Changzhou Development&Reform Commission for their support。