Sb-Doped O3-NaNi0.3Fe0.2Mn0.5O2 Cathode with Improved Cyclic Stability for Sodium-Ion Batteries DOI

HanChi Hu,

Hongxia Chen,

Shuangwu Xu

и другие.

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(17), С. 7397 - 7408

Опубликована: Авг. 29, 2024

As a leading sodium-ion battery cathode material, O3-type layered oxides combine excellent theoretical specific capacity and cost-effectiveness, offering potential solutions for the large-scale energy storage industry. However, they still struggle with significant degradation inferior performance due to narrow Na+ diffusion channels complex phase. In this paper, we introduce Sb ions into NaNi0.3Fe0.2Mn0.5O2 material improve its electrochemical performance. Our findings demonstrate that doping results in an expansion of Na layer spacing cell volume, contributing faster Na+. Furthermore, Na+/vacancy ordering undesirable phase transition under high pressure are inhibited synthesized Na(Ni0.3Fe0.2Mn0.5)0.98Sb0.02O2 which obtains more boosting structure advanced Within voltage range 2.0–4.2 V, possesses initial discharge 127.71 mAh g–1 maintains retention 82.34% (64.33% before doping) after 100 cycles. Moreover, at 10 C current density, 90.26 is observed doped material. These contribute essential insights design advancement materials batteries outstanding properties.

Язык: Английский

Cu2+ substitution regulating Na3V2(PO4)3 with solid SEI membrane for superior electrochemical performance DOI

Zhenbo Peng,

Bifen Chen,

Shan Yu

и другие.

Dalton Transactions, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Cu 2+ substitution introduces p-type doping effects to supply hole carriers and plays pillar effect support crystal skeleton.

Язык: Английский

Процитировано

0
A novel Mo@VN/V2O3-Co3O4 composite as a stable catalyst for potassium‑oxygen batteries with excellent performance DOI

Xindou Yu,

Jin Zhang, Xiaomin Zhang

и другие.

Journal of Energy Storage, Год журнала: 2025, Номер 119, С. 116425 - 116425

Опубликована: Март 30, 2025

Язык: Английский

Процитировано

0
Detecting dynamic structural evolution based on in-situ high-energy X-ray diffraction technology for sodium layered oxide cathodes DOI
Yanjiang Li, Shulei Chou, Yao Xiao

и другие.

Chinese Chemical Letters, Год журнала: 2024, Номер 36(2), С. 110389 - 110389

Опубликована: Авг. 31, 2024

Язык: Английский

Процитировано

3
Sb-Doped O3-NaNi0.3Fe0.2Mn0.5O2 Cathode with Improved Cyclic Stability for Sodium-Ion Batteries DOI

HanChi Hu,

Hongxia Chen,

Shuangwu Xu

и другие.

ACS Applied Energy Materials, Год журнала: 2024, Номер 7(17), С. 7397 - 7408

Опубликована: Авг. 29, 2024

As a leading sodium-ion battery cathode material, O3-type layered oxides combine excellent theoretical specific capacity and cost-effectiveness, offering potential solutions for the large-scale energy storage industry. However, they still struggle with significant degradation inferior performance due to narrow Na+ diffusion channels complex phase. In this paper, we introduce Sb ions into NaNi0.3Fe0.2Mn0.5O2 material improve its electrochemical performance. Our findings demonstrate that doping results in an expansion of Na layer spacing cell volume, contributing faster Na+. Furthermore, Na+/vacancy ordering undesirable phase transition under high pressure are inhibited synthesized Na(Ni0.3Fe0.2Mn0.5)0.98Sb0.02O2 which obtains more boosting structure advanced Within voltage range 2.0–4.2 V, possesses initial discharge 127.71 mAh g–1 maintains retention 82.34% (64.33% before doping) after 100 cycles. Moreover, at 10 C current density, 90.26 is observed doped material. These contribute essential insights design advancement materials batteries outstanding properties.

Язык: Английский

Процитировано

1