Zwitterionic imidazolium compounds with high cathodic stability as additives for lithium battery electrolytes

Nguyen, Dinh Quan; Bae, Hyun Woo; Jeon, Eun Jeong; Lee, Je Seung; Cheong, Minserk; Kim, Honggon; Kim, Hoon Sik; Lee, Hyunjoo

doi:10.1016/j.jpowsour.2008.04.047

Cited by 29 publications

(22 citation statements)

References 33 publications

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“…These salts were based on stable structure of imidazole aromatic ring with covalently bonded electrophilic groups. Unlike many structures proposed by other researchers [13,14], in our approach the imidazole ring is connected to electrophilic groups via carbon, instead of nitrogen atoms. Such structure is even more electrochemically and thermally stable.…”

Section: Introductionmentioning

confidence: 99%

Liquid electrolytes based on new lithium conductive imidazole salts

Niedzicki

Kasprzyk

Kuziak

et al. 2011

Journal of Power Sources

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Section: Introductionmentioning

confidence: 99%

Liquid electrolytes based on new lithium conductive imidazole salts

Niedzicki

Kasprzyk

Kuziak

et al. 2011

Journal of Power Sources

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“…N-Methylimidazole (10)w as hydroxymethylated by am odifiedp rocedure. [17] The resulting compound 9 was treated with ethyl chloroacetatew ith formation of the imidazolium salt 8.C hlorination of 8 with thionylc hloride gave 7,containing areactive chloromethyl moiety.…”

Section: Resultsmentioning

confidence: 99%

“…The remaining orange oil was dissolved in MeCN (5-10 mL 2-(Hydroxymethyl)-1-methylimidazole (9):C ompound 9 was obtained according to am odified literature procedure. [17] The remaining paraformaldehyde was removed by filtration, and compound 9 was crystallized from the solution by slow addition of ( 11):C ompound 6 (500 mg, 0.88 mmol) was dissolved in MeCN (25 mL, anhydrous and degassed). Potassium carbonate (K 2 CO 3 ,2 45 mg, 2equiv) and bromoethane (EtBr,4 80 mg, 0.33 mL, 5equiv) were added.…”

Section: Methodsmentioning

confidence: 99%

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Charge‐Compensated Metallacarborane Building Blocks for Conjugation with Peptides

et al. 2016

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The cobalt bis(dicarbollide) complex [commo-3,3'-Co(1,2-C2 B9 H11 )2 ](-) has captured much attention in biochemical and medical contexts, in particular for the treatment of tumors by boron neutron capture therapy (BNCT). Derivatives of cobalt bis(dicarbollide) are commonly prepared through ring-opening reactions of cyclic oxonium ions, so the corresponding products are usually charged. Furthermore, attempts to incorporate cobalt bis(dicarbollide) into peptides are rare, despite obvious potential advantages. Here the synthesis of an imidazolium-based charge-compensated cobalt bis(dicarbollide) building block, which allows additional modifications with moieties of biochemical relevance, such as monosaccharides, is reported. Furthermore, conjugates of these building blocks with the Y1 -receptor-selective derivative of neuropeptide Y ([F(7) ,P(34) ]-NPY) retained excellent response to hY1 receptors found to be overexpressed in breast tumors and metastases.

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“…Nguyen et al [ 119 ] synthesized several imidazolium-based zwitterionic salts functionalized by a propylsulfonate group at C-3 position and an ester group at C-1 or C-2 position. In particular, grafting an ester group at the C-2 position of the imidazolium ring substantially improved the electrochemical stability of zwitterionic salts, and when these zwitterionic salts were used as additives for lithium battery electrolytes, their cycling performance was also improved compared with those containing a zwitterionic salt with an ester group at C-1 and a hydrogen or methyl group at C-2.…”

Section: Zwitterionic Ilsmentioning

confidence: 99%

Task-Specific Ionic Liquids for Electrochemical Applications

Zhao

2015

Electrochemistry in Ionic Liquids

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Ionic liquids (ILs) have been widely examined as solvents, additives, or catalysts in a variety of applications including organic catalysis [ 1 -5 ], inorganic and materials synthesis [ 6 ], biocatalysis [ 7 -12 ], electrochemistry [ 13 ], pharmaceutical chemistry [ 14 ], polymerization [ 15 , 16 ], and engineering fl uids [ 17 -19 ]. The physicochemical properties of ILs are tunable through a careful selection of a variety of different cations and anions and a rational combination of ion pairs. More interestingly, cations and/or anions can be further functionalized to form so-called task-specifi c ionic liquids (TSILs). The notion of TSILs carrying specifi c functionality tailored for particular applications has proven visionary, and a variety of different functional groups have been grafted onto ILs [ 20 -22 ]. In particular, there is an exponential growth in constructing new TSILs as electrolytes for electrochemical applications. This chapter focuses on a critical discussion of some major types of TSILs and their electrochemical properties and applications. Ether/Thioether-and Hydroxyl/Thiol-Functionalized ILs General Physical PropertiesOur recent review has captured some key physical properties of ether-and alcoholfunctionalized ILs [ 22 ]. The inclusion of alkyloxy or alkyloxyalkyl groups in ILs often lowers the melting points ( T m ) [ 23 -26 ]. Additionally, the lowering of the

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Zwitterionic imidazolium compounds with high cathodic stability as additives for lithium battery electrolytes

Cited by 29 publications

References 33 publications

Liquid electrolytes based on new lithium conductive imidazole salts

Liquid electrolytes based on new lithium conductive imidazole salts

Charge‐Compensated Metallacarborane Building Blocks for Conjugation with Peptides

Task-Specific Ionic Liquids for Electrochemical Applications

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