Back cover: Investigating the oxidation state of Fe from LiFePO4‐based lithium ion battery cathodes via capillary electrophoresis (elps.202000097) and Accessing copper oxidation states of dissolved negative electrode current collectors in lithium ion batteries (elps.202000155). Issue 18 (8th October 2020)

• Record Type: Journal Article
• Authors: Hanf, Lenard; Diehl, Marcel; Kemper, Lea‐Sophie; Winter, Martin; Nowak, Sascha
• Is Part Of: Electrophoresis. Volume 41:Issue 18/19(2020)
• Page Start: NA
• Page End: NA
• Publication Date: 2020-10-08
• Subjects: Electrophoresis -- Periodicals; Electrophoresis -- Periodicals; 541.372
• DOI: 10.1002/elps.202070102
• Languages: English
• ISSNs: 0173-0835

Abstract

Abstract : DOI: 10.1002/elps.202000097 and 10.1002/elps.202000155 The back cover picture shows the dissolution of iron from the LiFePO4 ‐based positive electrode and copper from the current collector of the negative electrode into a lithium ion battery (LIB) electrolyte (center of picture). The transition‐metal dissolution plays a fundamental role in the progressive loss of capacity of the LIBs. Therefore, knowledge of the dissolved transition‐metal species is the key to understanding the dissolution mechanisms, as well as the capacity loss. However, dissolved iron and copper species in LIBs have not yet been investigated. Therefore, novel CE methods were developed to investigate Fe2+ /Fe3+ and Cu+ /Cu2+ in LIB electrolytes (electropherograms at the top and bottom). [The cover was updated October 22, 2020, after publication of the issue.]