Comparison of Lithium-Ion Anode Materials Using an Experimentally Verified Physics-Based Electrochemical Model
Researchers are in search of parameters inside Li-ion batteries that can be utilized to control their external behavior. Physics-based electrochemical model could bridge the gap between Li+ transportation and distribution inside battery and battery performance outside. In this paper, two commerciall...
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| Format: | Article |
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MDPI AG
2017-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/10/12/2174 |
| _version_ | 1817989861412438016 |
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| author | Rujian Fu Xuan Zhou Hengbin Fan Douglas Blaisdell Ajay Jagadale Xi Zhang Rui Xiong |
| author_facet | Rujian Fu Xuan Zhou Hengbin Fan Douglas Blaisdell Ajay Jagadale Xi Zhang Rui Xiong |
| author_sort | Rujian Fu |
| collection | DOAJ |
| description | Researchers are in search of parameters inside Li-ion batteries that can be utilized to control their external behavior. Physics-based electrochemical model could bridge the gap between Li+ transportation and distribution inside battery and battery performance outside. In this paper, two commercially available Li-ion anode materials: graphite and Lithium titanate (Li4Ti5O12 or LTO) were selected and a physics-based electrochemical model was developed based on half-cell assembly and testing. It is found that LTO has a smaller diffusion coefficient (Ds) than graphite, which causes a larger overpotential, leading to a smaller capacity utilization and, correspondingly, a shorter duration of constant current charge or discharge. However, in large current applications, LTO performs better than graphite because its effective particle radius decreases with increasing current, leading to enhanced diffusion. In addition, LTO has a higher activation overpotential in its side reactions; its degradation rate is expected to be much smaller than graphite, indicating a longer life span. |
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| id | doaj.art-5900d55e5d2b4ccb88c847a044812c64 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T00:51:40Z |
| publishDate | 2017-12-01 |
| publisher | MDPI AG |
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| series | Energies |
| spelling | doaj.art-5900d55e5d2b4ccb88c847a044812c642022-12-22T02:21:46ZengMDPI AGEnergies1996-10732017-12-011012217410.3390/en10122174en10122174Comparison of Lithium-Ion Anode Materials Using an Experimentally Verified Physics-Based Electrochemical ModelRujian Fu0Xuan Zhou1Hengbin Fan2Douglas Blaisdell3Ajay Jagadale4Xi Zhang5Rui Xiong6Independent Researcher, Novi, MI 48377, USADepartment of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USADepartment of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USADepartment of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USADepartment of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USASchool of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, ChinaNational Engineering Laboratory for Electric Vehicles and Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing Institute of Technology, Beijing 100081, ChinaResearchers are in search of parameters inside Li-ion batteries that can be utilized to control their external behavior. Physics-based electrochemical model could bridge the gap between Li+ transportation and distribution inside battery and battery performance outside. In this paper, two commercially available Li-ion anode materials: graphite and Lithium titanate (Li4Ti5O12 or LTO) were selected and a physics-based electrochemical model was developed based on half-cell assembly and testing. It is found that LTO has a smaller diffusion coefficient (Ds) than graphite, which causes a larger overpotential, leading to a smaller capacity utilization and, correspondingly, a shorter duration of constant current charge or discharge. However, in large current applications, LTO performs better than graphite because its effective particle radius decreases with increasing current, leading to enhanced diffusion. In addition, LTO has a higher activation overpotential in its side reactions; its degradation rate is expected to be much smaller than graphite, indicating a longer life span.https://www.mdpi.com/1996-1073/10/12/2174Li-ion batteryanode materialshalf-cell modeling |
| spellingShingle | Rujian Fu Xuan Zhou Hengbin Fan Douglas Blaisdell Ajay Jagadale Xi Zhang Rui Xiong Comparison of Lithium-Ion Anode Materials Using an Experimentally Verified Physics-Based Electrochemical Model Energies Li-ion battery anode materials half-cell modeling |
| title | Comparison of Lithium-Ion Anode Materials Using an Experimentally Verified Physics-Based Electrochemical Model |
| title_full | Comparison of Lithium-Ion Anode Materials Using an Experimentally Verified Physics-Based Electrochemical Model |
| title_fullStr | Comparison of Lithium-Ion Anode Materials Using an Experimentally Verified Physics-Based Electrochemical Model |
| title_full_unstemmed | Comparison of Lithium-Ion Anode Materials Using an Experimentally Verified Physics-Based Electrochemical Model |
| title_short | Comparison of Lithium-Ion Anode Materials Using an Experimentally Verified Physics-Based Electrochemical Model |
| title_sort | comparison of lithium ion anode materials using an experimentally verified physics based electrochemical model |
| topic | Li-ion battery anode materials half-cell modeling |
| url | https://www.mdpi.com/1996-1073/10/12/2174 |
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