Mechanistic insights into interfacial failure of hard carbon anodes in sodium-ion batteries under extreme conditions
Rongfen Feng, Qiang Wang, Xiaosha Wu, Hanqi Zhang, Yang Gao, Ning Zhao, Jiahe Li, Xiuxia Zhao, Xiaofei Hu · 2026
Read Mechanistic insights into interfacial failure of hard carbon anodes in sodium-ion batteries under extreme conditions by Rongfen Feng, Qiang Wang, Xiaosha Wu, Hanqi Zhang, Yang Gao, Ning Zhao, Jiahe Li, Xiuxia Zhao, Xiaofei Hu (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13224049.txt.
Description
Rongfen Feng and co-authors study why sodium battery anodes fail at temperature extremes in this 2026 paper. Sodium-ion batteries promise cheap storage, but their hard carbon anodes degrade in cold and heat. The team ran charge tests and multi-scale imaging at deep cold and at high heat.
In the cold, sluggish chemistry grew metal spikes and thickened the surface film, wasting sodium and blocking flow. At high heat, the film turned crystalline for the first time on record. That dense layer blocked sodium movement and fed more side reactions, in a self-worsening cycle. The authors show the failure sits at the surface, not inside the carbon, which guides future designs.
Catalog record
| CREATOR | Rongfen Feng, Qiang Wang, Xiaosha Wu, Hanqi Zhang, Yang Gao, Ning Zhao, Jiahe Li, Xiuxia Zhao, Xiaofei Hu |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 32 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |