Directional assist (0 1 0) plane growth in LiMnPO<sub>4</sub> prepared by solvothermal method with polyols to enhance electrochemical performance

Qian Xie; Jihua Zhu; Chengyun Wang; Kaibin Fang; Wei Yang; Quanbing Liu; Yali Wang; Shengzhou Chen

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Directional assist (0 1 0) plane growth in LiMnPO₄ prepared by solvothermal method with polyols to enhance electrochemical performance

Energy Science and Technology | Updated：2026-01-06

- Directional assist (0 1 0) plane growth in LiMnPO₄ prepared by solvothermal method with polyols to enhance electrochemical performance
- Chinese Journal of Chemical Engineering Vol. 36, Issue 8, Pages: 181-189(2021)
- Affiliations：
  
  1. School of Chemistry and Chemical Engineering, Guangzhou University,Guangzhou,China,510006
  2. Sunwoda Electronics Co., Ltd.,Shenzhen,China,518107
  3. GAC Automotive Research & Development Center,Guangzhou,China,511434
  4. School of Chemical Engineering and Light Industry, Guangdong University of Technology,Guangzhou,China,510006
- Author bio：
- Funds：
- DOI：
  CLC：
- Published：2021
- Accepted：
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prepared by solvothermal method with polyols to enhance electrochemical performance[J]. 中国化学工程学报, 2021, 36(8): 181-189.
DOI：

prepared by solvothermal method with polyols to enhance electrochemical performance[J]. 中国化学工程学报, 2021, 36(8): 181-189. DOI：

摘要

Abstract

Phosphate material LiMnPO

is popular for its high energy density (697 W·h·kg

-1

) and safety. When LiMnPO

crystal grows

the potential barrier along b and c axis is strong

which makes the crystal grow along b axis to form a one-dimensional chain structure. However

the main migration channel of lithium ions in olivine structure is plane (0 1 0). By shortening the growth in the direction of b axis and enhancing the diffusion along the directions of a and c

two-dimensional nanosheets that are more conducive to the migration of lithium ions are formed. The dosage of polyols is the key factor guiding the dispersion of the crystals to the (0 1 0) plane. X-ray diffraction (XRD)

Scanning electron microscopy (SEM)

transmission electron microscopy (TEM) and other means are used to characterize the samples. After experiments

we found that when the ratio of polyol/water was 2:1

the morphology of the synthesized sample was 20-30 nm thick nanosheets

which had the best electrochemical performance. At 0.1C

the discharge specific capacity reaches 148.9 mA·h·g

-1

still reaches 144.3 mA·h·g

-1

at the 50th cycle

. and there is still 112.5 mA·h·g

-1

under high rate (5C). This is thanks to the good dispersion of the material in the direction of the crystal plane (0 1 0). This can solve the problem of low conductivity and ionic mobility of phosphate materials.

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⁰

Directional assist (0 1 0) plane growth in LiMnPO4 prepared by solvothermal method with polyols to enhance electrochemical performance

DOI：

摘要

Abstract

关键词

Keywords

references

Directional assist (0 1 0) plane growth in LiMnPO₄ prepared by solvothermal method with polyols to enhance electrochemical performance