Imperial College London

Professor Nigel Brandon OBE FREng

Faculty of Engineering

Dean of the Faculty of Engineering
 
 
 
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Contact

 

+44 (0)20 7594 8600n.brandon Website

 
 
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Location

 

2.06Faculty BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Wu:2016:10.1016/j.jpowsour.2015.12.122,
author = {Wu, B and Merla, Y and Yufit, V and Brandon, NP and Martinez-Botas, R and Offer, GJ},
doi = {10.1016/j.jpowsour.2015.12.122},
journal = {Journal of Power Sources},
pages = {308--319},
title = {Novel application of differential thermal voltammetry as an in-depth state-of-health diagnosis method for lithium-ion batteries},
url = {http://dx.doi.org/10.1016/j.jpowsour.2015.12.122},
volume = {307},
year = {2016}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - Understanding and tracking battery degradation mechanisms and adapting its operation have become a necessity in order to enhance battery durability. A novel use of differential thermal voltammetry (DTV) is presented as an in-situ state-of-health (SOH) estimator for lithium-ion batteries.Accelerated ageing experiments were carried on 5Ah commercial lithium-ion polymer cells operated and stored at different temperature and loading conditions. The cells were analysed regularly with various existing in-situ diagnosis methods and the novel DTV technique to determine their SOH. The diagnosis results were used collectively to elaborate the degradation mechanisms inside the cells. The DTV spectra were decoupled into individual peaks, which each represent particular phases in the negative and positive electrode combined. The peak parameters were used to quantitatively analyse the battery SOH.A different cell of the same chemistry with unknown degradation history was then analysed to explore how the cell degraded. The DTV technique was able to diagnose the cell degradation without relying on supporting results from other methods nor previous cycling data.
AU - Wu,B
AU - Merla,Y
AU - Yufit,V
AU - Brandon,NP
AU - Martinez-Botas,R
AU - Offer,GJ
DO - 10.1016/j.jpowsour.2015.12.122
EP - 319
PY - 2016///
SN - 1873-2755
SP - 308
TI - Novel application of differential thermal voltammetry as an in-depth state-of-health diagnosis method for lithium-ion batteries
T2 - Journal of Power Sources
UR - http://dx.doi.org/10.1016/j.jpowsour.2015.12.122
UR - http://hdl.handle.net/10044/1/28862
VL - 307
ER -