Imperial College London

Dr Samuel J Cooper

Faculty of EngineeringDyson School of Design Engineering

Lecturer
 
 
 
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Contact

 

samuel.cooper Website

 
 
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Location

 

ObservatorySouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Daemi:2018:10.1021/acsaem.8b00501,
author = {Daemi, SR and Tan, C and Volkenandt, T and Cooper, SJ and Palacios-Padros, A and Cookson, J and Brett, DJL and Shearing, PR},
doi = {10.1021/acsaem.8b00501},
journal = {ACS Applied Energy Materials},
pages = {3702--3710},
title = {Visualizing the carbon binder phase of battery electrodes in three dimensions},
url = {http://dx.doi.org/10.1021/acsaem.8b00501},
volume = {1},
year = {2018}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - This study presents a technique to directly characterize the carbon and binder domain (CBD) in lithium-ion (Li-ion) battery electrodes in three dimensions and use it to determine the effective transport properties of a LiNi0.33Mn0.33Co0.33O2 (NMC) electrode. X-ray nanocomputed tomography (nano-CT) is used to image an electrode composed solely of carbon and binder, whereas focused ion beam–scanning electron microscopy is used to analyze cross-sections of a NMC electrode to gain morphological information regarding the electrode and CBD porosity. Combining the information gathered from these techniques reduces the uncertainty inherent in segmenting the nano-CT CBD data set and enables effective diffusivity of its porous network to be determined. X-ray microcomputed tomography (micro-CT) is then used to collect a NMC data set that is subsequently segmented into three phases, comprised of active material, pore, and CBD. The effective diffusivity calculated for the nano-CT data set is incorporated for the CBD present in the micro-CT data set to estimate the ensemble tortuosity factor for the NMC electrode. The tortuosity factor greatly increases when compared to the same data set segmented without considering the CBD. The porous network of the NMC electrode is studied with a continuous pore size distribution approach that highlights median radii of 180 nm and 1 μm for the CBD and NMC pores, respectively, and with a pore throat size distribution calculation that highlights median equivalent radii of 350 and 700 nm.
AU - Daemi,SR
AU - Tan,C
AU - Volkenandt,T
AU - Cooper,SJ
AU - Palacios-Padros,A
AU - Cookson,J
AU - Brett,DJL
AU - Shearing,PR
DO - 10.1021/acsaem.8b00501
EP - 3710
PY - 2018///
SN - 2574-0962
SP - 3702
TI - Visualizing the carbon binder phase of battery electrodes in three dimensions
T2 - ACS Applied Energy Materials
UR - http://dx.doi.org/10.1021/acsaem.8b00501
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000458706400024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/69938
VL - 1
ER -