DataVXACS Energy LettersPaper
journal article·2025-12-12

Direct Regeneration of Sodium-Rich Phosphate Cathode for Sustainable Sodium Ion Batteries

Liang Deng, Shi-Zhong Lv, Mei-Yan Sun, Jing-Jing Hou, Yin-Qi Zheng, Gang Sun, Zao-Hui He, Lei Zhao, Fan-Tao Kong, Zhen-Bo Wang

ACS Energy Letters· Volume 10· Issue 12
Publisher page
Source abstract

Abstract

Upcycling degraded cathode is a sustainable way to deal with spent cathode materials. Herein, we found the sodium-rich crystal framework upon the vanadium phosphate cathode intrinsically endows itself with the capability of being thermally healed and in-situ regenerated. It is revealed that thermal modulation enables the de/intercalation activity of excess sodium ions inside the sodium-rich phosphate to realize interior sodium supply, thereby inducing the spent cathode to retrieve lost capacity. In particular, the redistribution of intercalation ions among different sodium crystallographic sites variates the local electronic environment around the transition metal, promoting the spent cathode to recover from a degraded energy state to the initial energy state. Based on this regeneration mechanism, though having experienced 6000 charge–discharge cycles, the regenerated cathode material restores ∼93.9% of its initial capacity, with a sufficient energy density of 440 Wh kg –1 . This work will provide insights into the direct regeneration of the degraded phosphate cathode for sustainable sodium ion batteries.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Thermal Expansion and Ionic Conductivity

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Space Power-Sources, MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions, School of Chemistry and Chemical Engineering

Harbin Institute of Technology

Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, College of Materials Science and Engineering

Shenzhen University

Jiangxi Jinhui Lithium Battery Materials Co., Ltd

School of Materials Science and Engineering

Funding

National Key Research and Development Program of China · Science and Technology Foundation of Shenzhen City · China Postdoctoral Science Foundation · Heilongjiang Provincial Postdoctoral Science Foundation · Guizhou Provincial Science and Technology Department · Fundamental Research Funds for the Central Universities · National Natural Science Foundation of China · Jiangxi Fuzhou municipal government

References (48)

Show source-provided references
1. 10.1002/gch2.20220006710.1002/gch2.202200067 ↗
2. 10.1038/d41586-021-02222-110.1038/d41586-021-02222-1 ↗
3. 10.1039/D3CS00898C10.1039/D3CS00898C ↗
4. 10.1021/acs.chemrev.9b0053510.1021/acs.chemrev.9b00535 ↗
5. 10.1016/j.chempr.2021.09.01310.1016/j.chempr.2021.09.013 ↗
6. 10.1039/D2EE00162D10.1039/D2EE00162D ↗
7. 10.1002/adma.20242046710.1002/adma.202420467 ↗
8. 10.1038/s41893-023-01094-910.1038/s41893-023-01094-9 ↗
9. 10.1002/aenm.20220117410.1002/aenm.202201174 ↗
10. 10.1016/j.electacta.2024.14381110.1016/j.electacta.2024.143811 ↗
11. 10.1016/j.jpowsour.2023.23323510.1016/j.jpowsour.2023.233235 ↗
12. 10.1016/j.energy.2020.11968210.1016/j.energy.2020.119682 ↗
13. 10.1002/adma.20241404810.1002/adma.202414048 ↗
14. 10.1002/adma.20241987210.1002/adma.202419872 ↗
15. 10.1002/adma.20220803410.1002/adma.202208034 ↗
16. 10.1002/adfm.20242203410.1002/adfm.202422034 ↗
17. 10.1038/s41560-022-01079-610.1038/s41560-022-01079-6 ↗
18. 10.1038/s41467-020-17396-x10.1038/s41467-020-17396-x ↗
19. 10.1021/acsenergylett.8b0083310.1021/acsenergylett.8b00833 ↗
20. 10.1038/s41467-022-28325-510.1038/s41467-022-28325-5 ↗
21. 10.1002/adma.20241423510.1002/adma.202414235 ↗
22. 10.1002/adma.20241681810.1002/adma.202416818 ↗
23. 10.1021/acsami.8b2252910.1021/acsami.8b22529 ↗
24. 10.1038/s44359-024-00002-410.1038/s44359-024-00002-4 ↗
25. 10.1016/j.joule.2020.10.00810.1016/j.joule.2020.10.008 ↗
26. 10.1002/aenm.20240483810.1002/aenm.202404838 ↗
27. 10.1016/j.joule.2020.06.00310.1016/j.joule.2020.06.003 ↗
28. 10.1002/aenm.20170142810.1002/aenm.201701428 ↗
29. 10.1038/s41578-023-00574-w10.1038/s41578-023-00574-w ↗
30. 10.1038/s41586-024-08465-y10.1038/s41586-024-08465-y ↗
31. 10.1002/aenm.20190045410.1002/aenm.201900454 ↗
32. 10.1021/acsnano.4c1394110.1021/acsnano.4c13941 ↗
33. 10.1021/acsami.1c0464710.1021/acsami.1c04647 ↗
34. 10.1016/j.elecom.2010.07.01610.1016/j.elecom.2010.07.016 ↗
35. 10.1039/C7CC04646D10.1039/C7CC04646D ↗
36. 10.1039/D0TA07872G10.1039/D0TA07872G ↗
37. 10.1039/c3ee41379a10.1039/c3ee41379a ↗
38. 10.1021/acs.chemmater.5b0036110.1021/acs.chemmater.5b00361 ↗
39. 10.1038/s41467-019-08359-y10.1038/s41467-019-08359-y ↗
40. 10.1021/acs.jpcc.6b1141310.1021/acs.jpcc.6b11413 ↗
41. 10.1002/adma.20250509310.1002/adma.202505093 ↗
42. 10.1021/acsnano.4c0183110.1021/acsnano.4c01831 ↗
43. 10.1021/acs.chemmater.6b0265910.1021/acs.chemmater.6b02659 ↗
44. 10.1021/cm300399610.1021/cm3003996 ↗
45. 10.1002/adma.20240022910.1002/adma.202400229 ↗
46. 10.1038/s41578-025-00816-z10.1038/s41578-025-00816-z ↗
47. 10.1002/adma.20250642310.1002/adma.202506423 ↗
48. 10.1038/s41586-025-08765-x10.1038/s41586-025-08765-x ↗