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Crystallographic engineering enables fast low‑temperature ion transport of TiNb2O7 for cold‑region lithium‑ion batteries

01.08.26 | Shanghai Jiao Tong University Journal Center

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Crystallographic Engineering Enables Fast Low‑Temperature Ion Transport of TiNb2O7 for Cold‑Region Lithium‑Ion Batteries
Sb element is introduced into TiNb2O7successfully.Such crystallographic engineering can narrow the bandgap and broaden the Li+transport channel, making TNO-Sb/Nb electrode possess a better low-temperature performance.Such a synergy effect enables TNO-Sb/Nb with large reversible capacity, superior rate performance (140.4 mAh g−1at 20 C), and a high durability of 500 cycles even at −30 °C, holding brand promises in practical applications. Credit: Lihua Wei, Shenglu Geng, Hailu Liu, Liang Deng, Yiyang Mao, Yanbin Ning, Biqiong Wang*, Yueping Xiong, Yan Zhang*, Shuaifeng Lou*.

As fast-charging lithium-ion batteries race toward sub-zero markets, the anode bottleneck—graphite plating risk and Li 4 Ti 5 O 12 capacity ceiling—intensifies. Now, researchers from Harbin Institute of Technology, led by Prof. Yan Zhang and Prof. Shuaifeng Lou, unveil an Sb/Nb co-doped TiNb 2 O 7 (TNO) anode that unlocks 140 mAh g -1 at 20 C and 500 stable cycles at −30 °C. Published in Nano-Micro Letters , the work delivers a practical pouch cell delivering 1.14 Ah at 17 C with 93.8 % retention after 700 cycles.

Why Crystallographic Engineering Matters

Innovative Design & Features

Applications & Future Outlook

Scalable Pathway : Earth-abundant dopants and ambient-air synthesis position the material for gigafactory adoption in cold-region EVs and aviation.

Nano-Micro Letters

10.1007/s40820-025-01949-0

News article

Crystallographic Engineering Enables Fast Low‑Temperature Ion Transport of TiNb2O7 for Cold‑Region Lithium‑Ion Batteries

1-Jan-2026

Keywords

Batteries

Article Information

Journal
Nano-Micro Letters
DOI
10.1007/s40820-025-01949-0
Method of Research
News article
Article Publication Date
2026-01-01
Article Title
Crystallographic Engineering Enables Fast Low‑Temperature Ion Transport of TiNb2O7 for Cold‑Region Lithium‑Ion Batteries

Contact Information

Bowen Li
Shanghai Jiao Tong University Journal Center
qkzx@sjtu.edu.cn

Source

Original Source
https://link.springer.com/article/10.1007/s40820-025-01949-0

How to Cite This Article

APA:
Shanghai Jiao Tong University Journal Center. (2026, January 8). Crystallographic engineering enables fast low‑temperature ion transport of TiNb2O7 for cold‑region lithium‑ion batteries. Brightsurf News. https://www.brightsurf.com/news/1WROMVML/crystallographic-engineering-enables-fast-lowtemperature-ion-transport-of-tinb2o7-for-coldregion-lithiumion-batteries.html
MLA:
"Crystallographic engineering enables fast low‑temperature ion transport of TiNb2O7 for cold‑region lithium‑ion batteries." Brightsurf News, Jan. 8 2026, https://www.brightsurf.com/news/1WROMVML/crystallographic-engineering-enables-fast-lowtemperature-ion-transport-of-tinb2o7-for-coldregion-lithiumion-batteries.html.