High power Na-ion capacitor with TiS2 as insertion host. (1st March 2019)

• Record Type: Journal Article
• Authors: Chaturvedi, Apoorva; Hu, Peng; Long, Yi; Kloc, Christian; Madhavi, Srinivasan; Aravindan, Vanchiappan
• Is Part Of: Scripta materialia. Number 161(2019)
• Page Start: 54
• Page End: 57
• Publication Date: 2019-03-01
• Subjects: Natrium-ion capacitor -- Lithium-ion capacitor -- Energy density -- Intercalation -- Two dimensional; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2018.10.016
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: High power capability of the hybrid charge storage device Na-ion capacitor (NIC) is fabricated using battery type TiS2 as an insertion host with the double layer forming activated carbon (AC) as supercapacitor component. Earlier, it is presumed that Na/TiS2 system is considered as impractical energy storage system. TiS2 single crystals are synthesized and exhibit the reversible insertion of ~0.62 mol. Na. AC/TiS2 assembly is delivering the maximum energy density of ~38 Wh kg −1 . One of the important aspects of this NIC is high power capability, which outperformed its analogue Li-ion capacitor fabricated under similar circumstances. Graphical abstract: