Thermodynamics of Lithium Intercalation in Randomly Oriented High Graphene Carbon
Joint Authors
Kadam, Rahul S.
Gadkaree, Kishor P.
Source
International Journal of Electrochemistry
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-06-15
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
This paper covers details of systematic investigation of the thermodynamics (entropy and enthalpy) of intercalation associated with lithium ion in a structurally novel carbon, called Randomly Oriented High Graphene (ROHG) carbon and graphite.
Equilibrated OCV (Open Circuit Voltage) versus temperature relationship is investigated to determine the thermodynamic changes with the lithium intercalation.
ROHG carbon shows entropy of 9.36 J·mol−1·K−1 and shows no dependency on the inserted lithium concentration.
Graphite shows initial entropy of 84.27 J·mol−1·K−1 and shows a strong dependence on lithium concentration.
ROHG carbon (from −90.85 kJ mol−1 to −2.88 kJ mol−1) shows gradual change in the slope of enthalpy versus lithium ion concentration plot compared to graphite (−48.98 kJ mol−1 to 1.84 kJ mol−1).
The study clearly shows that a lower amount of energy is required for the lithium ion intercalation into the ROHG structure compared to graphite structure.
Randomly oriented graphene platelet cluster structure of ROHG carbon makes it easier for the intercalation or deintercalation of lithium ion.
The ease of intercalation and the small cluster structure of ROHG as opposed to the long linear platelet structure of graphite lead to higher rates of the charge-discharge process for ROHG, when used as an electrode material in electrochemical applications.
American Psychological Association (APA)
Kadam, Rahul S.& Gadkaree, Kishor P.. 2017. Thermodynamics of Lithium Intercalation in Randomly Oriented High Graphene Carbon. International Journal of Electrochemistry،Vol. 2017, no. 2017, pp.1-6.
https://search.emarefa.net/detail/BIM-1166793
Modern Language Association (MLA)
Kadam, Rahul S.& Gadkaree, Kishor P.. Thermodynamics of Lithium Intercalation in Randomly Oriented High Graphene Carbon. International Journal of Electrochemistry No. 2017 (2017), pp.1-6.
https://search.emarefa.net/detail/BIM-1166793
American Medical Association (AMA)
Kadam, Rahul S.& Gadkaree, Kishor P.. Thermodynamics of Lithium Intercalation in Randomly Oriented High Graphene Carbon. International Journal of Electrochemistry. 2017. Vol. 2017, no. 2017, pp.1-6.
https://search.emarefa.net/detail/BIM-1166793
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1166793