[vc_empty_space][vc_empty_space]
The effect of acetonitrile as an additive on the ionic conductivity of imidazolium-based ionic liquid electrolyte and charge-discharge capacity of its Li-ion battery
Rofika R.N.S.a, Honggowiranto W.b, Jodi H.b, Sudaryanto S.b, Kartini E.b, Hidayat R.a
a Physics Graduate Program, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Bandung, Indonesia
b Science and Technology Center for Advanced Materials, National Nuclear Energy Agency (BATAN), Indonesia, South Tangerang, 15314, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]© 2019, Springer-Verlag GmbH Germany, part of Springer Nature.In this paper, we report the effect of a small quantity of acetonitrile (ACN) addition to an ionic liquid-based electrolyte for lithium-ion (Li-ion) batteries, which is comprised of lithium bis(trifluoromethylsulfonyl)imide (LiTFSI) salt dissolved in 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (BMIMTFSI). The addition of a small amount of ACN results in the increase of ionic conductivity, and at a proper molal fraction, it may significantly improve the charge-discharge capacity of its half-cell battery. A large amount of ACN addition, however, reduces the specific capacity because ACN molecules are more susceptible to irreversible redox reactions at the battery electrodes. The experimental results are also compared with the X-ray diffraction (XRD pattern) of the solutions, which may lead to a suggestion in the formation of coordination complexes between the Li+ cations with ACN molecules, which effectively hinders the formation of strong Li+-TFSI− ionic bonding and therefore increases the Li+ cation mobility. Different from other reports, the role of this small quantity of ACN is considered not only as a co-solvent, but also as an additive to this LiTFSI/BMIMTFSI electrolyte. [Figure not available: see fulltext.].[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Battery electrode,Cation mobility,Charge-discharge capacity,Coordination complex,Imidazolium-based ionic liquid,Ionic-liquid based electrolytes,Large amounts,Specific capacities[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Additive,Coordination complex,Ionic conductivity,Ionic liquid,Lithium-ion battery[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text]The authors gratefully acknowledge the financial support from the Ministry of Research and Technology of Indonesia through Program INSINAS Konsorsium Riset Energi Baru dan Terbarukan: Pengembangan Baterai Lithium sebagai Energy Storage Pembangkit Listrik Tenaga Surya under contract no. IRPK-2018-148.[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text]https://doi.org/10.1007/s11581-019-02919-4[/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]