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On the Use of Carbon Nanotubes in Prototyping the High Energy Density Li‐ion Batteries
Author(s) -
Napolskiy Filipp,
Avdeev Mikhail,
Yerdauletov Meir,
Ivankov Oleksandr,
Bocharova Svetlana,
Ryzhenkova Serafima,
Kaparova Balken,
Mironovich Kirill,
Burlyaev Dmitry,
Krivchenko Victor
Publication year - 2020
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.202000146
Subject(s) - materials science , carbon nanotube , electrode , gravimetric analysis , electrolyte , carbon black , chemical engineering , carbon fibers , fabrication , electrical conductor , nanotechnology , supercapacitor , wetting , composite material , capacitance , chemistry , organic chemistry , composite number , engineering , medicine , natural rubber , alternative medicine , pathology
This article is devoted to the laboratory technology aspects of high areal capacity electrode (more than 5 mAh cm −2 ) fabrication using carbon nanotubes (CNTs) as conductive additives and LiFePO 4 as an active material. The influence of electrode slurry rheological properties and electrode composition on its areal (mAh cm −2 ), volumetric (mAh cm −3 ), and gravimetric (mAh g −1 ) capacity, and C‐rate performance has been studied. Using the small‐angle neutron scattering technique, it is shown that the CNT network embedded in the electrode layer provides greater wettability by an electrolyte compared with carbon black used as conductive additive. The practical applicability of the considered electrode technology is approved on a pouch cell prototype with a capacity of approximately 1.9 Ah and specific energy density of 150 Wh kg (cell) −1 /295 Wh L (cell) −1 .