Minimally invasive insertion of reference electrodes into commercial lithium-ion pouch cells
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Two procedures to introduce a lithium metal reference electrode into commercially manufactured lithium-ion pouch cells (Kokam SLPB 533459H4) are described and compared. By introducing a stable reference potential, the individual behavior of the positive and negative electrodes can be studied in operando under normal cycling. Unmodified cells and half-cells made from harvested electrode material were cycled under identical conditions to the modified cells to compare capacity degradation during cycling and thus validate each modification procedure for degradation testing. A configuration that did not affect the performance of the cell over 20 cycles was successfully developed.
McTurk , E , Birkl , C R , Roberts , M R , Howey , D A & Bruce, FRS , P 2015 , ' Minimally invasive insertion of reference electrodes into commercial lithium-ion pouch cells ' ECS Electrochemistry Letters , vol. 4 , no. 12 , pp. A145-A147 . DOI: 10.1149/2.0081512eel
ECS Electrochemistry Letters
© The Authors 2015. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 License (CC BY, http://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse of the work in any medium, provided the original work is properly cited.
DescriptionThe authors gratefully acknowledge the financial support of EPSRC UK and Jaguar Land Rover Ltd for this work.
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