onr:"swepub:oai:DiVA.org:uu-330076"
Search: onr:"swepub:oai:DiVA.org:uu-330076" > On the Electrochemi...
- 1 of 1
- Previous record
- Next record
- To hitlist
On the Electrochemical Properties and Interphase Composition of Graphite : PVdF-HFP Electrodes in Dependence of Binder Content
-
- Jeschull, Fabian (author)
- Uppsala universitet,Strukturkemi
-
- Maibach, Julia (author)
- Uppsala universitet,Strukturkemi
-
- Edström, Kristina (author)
- Uppsala universitet,Strukturkemi
- show more...
- show less...
- (creator_code:org_t)
- 2017-06-16
- 2017
- English.
- In: Journal of the Electrochemical Society. - : Electrochemical Society. - 0013-4651 .- 1945-7111. ; 164:7, s. A1765-A1772
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Poly(vinylidene-difluoride) (PVdF) based polymers constitute the most commonly used binders for lithium-ion battery electrodes. In scientific studies, the binder content often exceeds commercially meaningful amounts. At the same time, the battery electrode performance can in various ways be coupled to its binder content, partly due to its influence on the surface properties. For example, an optimum binder content of around 5 wt% has been reported. In this study, graphite: PVdF-HFP electrodes containing 2.5, 5 and 10 wt% of PVdF-HFP are investigated, and their electrochemical behavior are put into context of the electrode-electrolyte interphase of the different formulations. Although the electrodes display similar electrochemical behavior, the SEI layer composition and thickness, analyzed by photoelectron spectroscopy, vary notably depending on binder content. It was found that a binder content of 5 wt% maintained the best cycling stability and also exhibited a thinner SEI layer with a larger fraction of inorganic components. In contrast to higher binder contents, where the binder covers most of the surface, larger parts of the active material are exposed directly to the electrolyte with binder contents of 2.5-5 wt%. The formation of a thinner, yet protective, SEI layer is beneficial for cycling performance of the graphite electrode. (C) 2017 The Electrochemical Society. All rights reserved.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- Binder
- Graphite
- Li-ion battery
- Photoelectron spectroscopy
- Poly(vinylene difluoride)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of the Electrochemical Society (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Jeschull, Fabian
- Maibach, Julia
- Edström, Kristin ...
- Brandell, Daniel ...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Chemical Science ...
- and Materials Chemis ...
- Articles in the publication
- Journal of the E ...
- By the university
- Uppsala University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
