Comparison of Lithium-Ion Anode Materials Using an Experimentally Verified Physics-Based Electrochemical Model

Rujian Fu, Xuan Zhou, Hengbin Fan, Douglas Blaisdell, Ajay Jagadale, Xi Zhang and Rui Xiong
Additional contact information
Rujian Fu: Independent Researcher, Novi, MI 48377, USA
Xuan Zhou: Department of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USA
Hengbin Fan: Department of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USA
Douglas Blaisdell: Department of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USA
Ajay Jagadale: Department of Electrical and Computer Engineering, Kettering University, Flint, MI 48504, USA
Xi Zhang: School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240, China
Rui Xiong: National Engineering Laboratory for Electric Vehicles and Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing Institute of Technology, Beijing 100081, China

Energies, 2017, vol. 10, issue 12, 1-20

Abstract: 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 (Li 4 Ti 5 O 12 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 ( D s ) 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.

Keywords: Li-ion battery; anode materials; half-cell modeling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

Downloads: (external link)
https://www.mdpi.com/1996-1073/10/12/2174/pdf (application/pdf)
https://www.mdpi.com/1996-1073/10/12/2174/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:10:y:2017:i:12:p:2174-:d:123532

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().