Oxides Induced Preferential Growth of {110} Planes for Superior Performance Single-Crystal LiMn<sub>2</sub>O<sub>4</sub> through Solid-State Process
Polycrystalline lithium manganese oxide (LMO) is known to suffer from severe surface structure degradation and electrochemical polarization due to its mixed crystal plane orientations. A hexagonal prism single-crystal LMO (LMOS-HP), engineered through the SrO-induced preferential growth effect, features the most stable {111} top surfaces and the fastest Li<sup>+</sup> diffusion {110} side surfaces, effectively addressing these challenges. Consequently, LMOS-HP exhibits superior electrochemical capability, with only 0.021% capacity fading per cycle after 500 cycles and achieves a discharge capacity of 81.9 mAh g<sup>-1</sup> at 20C. This innovative design offers a promising approach for tuning surface crystal orientation to improve performance.
Authors
- Xinyu Hu (ORCID: https://orcid.org/0000-0002-5956-7269)
- Yanbing Cao (ORCID: https://orcid.org/0000-0001-5984-6973)
- Zhongdong Peng (ORCID: https://orcid.org/0000-0002-9531-0305)
- Xiaobo Ji (ORCID: https://orcid.org/0000-0002-5405-7913)
- Hongshuai Hou (ORCID: https://orcid.org/0000-0001-8201-4614)
- Guoqiang Zou (ORCID: https://orcid.org/0000-0001-7115-6190)
- Haoji Wang (ORCID: https://orcid.org/0000-0002-7707-0088)
- Yuming Shu
- Di Chen (ORCID: https://orcid.org/0000-0002-2187-9240)
- Ziwei Cao (ORCID: https://orcid.org/0000-0002-8788-7972)
- Yujin Li
- Qing Pan (ORCID: https://orcid.org/0000-0002-3445-3281)
- Ke Du (ORCID: https://orcid.org/0000-0002-8043-6562)
- Baichao Zhang (ORCID: https://orcid.org/0000-0002-7606-9421)
- Guorong Hu
- Wentao Deng (ORCID: https://orcid.org/0000-0002-2064-2970)
- Jiangnan Huang
- Huimin Lian
- Hanghang Lei
Institutions
- Central South University (CN)
- Tsinghua University (CN)
Publication Details
- Journal
- The Journal of Physical Chemistry Letters
- Published
- 2024-08-16
- DOI
- https://doi.org/10.1021/acs.jpclett.4c02093
- Primary Topic
- Advancements in Battery Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China