Novel ionic plastic crystal-polymeric ionic liquid all-solid-state electrolytes for lithium ion batteries

doi:10.12028/j.issn.2095-4239.2018.0151

Abstract

Abstract: As a kind of new solid electrolyte materials, ionic plastic crystals have received much attention in recent years. In this paper, a novel ionic plastic crystal N, N-dimethylpyrrolidinium bis (fluorosulfonyl)imide (P₁₁FSI) was firstly synthesized, and blended with pyrrolidinium-based polymeric ionic liquid (PILFSI) and lithium salt (LiFSI) to obtain a series of new solid electrolytes.The thermal and electrochemical properties of as-prepared solid electrolytes are investigated by differential scanning calorimeter, thermogravimetric analysis, impedance spectroscopy measurements, linear sweep voltammetry and symmetrical lithium cell test. The as-prepared solid electrolytes exhibit good flexibility and thermal stability, high ionic conductivity and electrochemical stability, as well as good compatibility with the lithium metal. Particularly, Li/LiFePO₄ cells assembled with as-obtained solid electrolytes present high discharge capacity (151.1 mA·h·g^-1), good cycle life and rate performance. This finding indicates that the solid electrolyte system obtained in our work has great potential for use in all-solid-state lithium ion batteries.

Key words: ionic plastic crystal, polymeric ionic liquid, all-solid-state electrolyte, lithium batteries

CLC Number:

TM911

YANG Kaihua, LIAO Zhu, LI Xuesong, ZHANG Zhengxi, YANG Li. Novel ionic plastic crystal-polymeric ionic liquid all-solid-state electrolytes for lithium ion batteries[J]. Energy Storage Science and Technology, 2018, 7(6): 1113-1119.

References

[1] XU K. Electrolytes and interphases in Li-ion batteries and beyond[J]. Chemical Reviews, 2014, 114 (23):11503-11618.
[2] GOODENOUGH J B, KIM Y. Challenges for rechargeable Li batteries[J]. Chemistry of Materials, 2010, 22 (3):587-603.
[3] 李泓. 全固态锂电池:梦想照进现实[J]. 储能科学与技术, 2018, 7 (2):188-193.
[4] MOTAVALLI J. A solid future[J]. Nature, 2015, 526 (7575):S96.
[5] TARASCON J M, ARMAND M. Issues and challenges facing rechargeable lithium batteries[J]. Nature, 2001, 414:359.
[6] 杜奥冰, 柴敬超, 张建军, 等. 锂电池用全固态聚合物电解质的研究进展[J]. 储能科学与技术, 2016, 5 (5):627-648. DU Aobing, CHAI Jingchao, ZHANG Jianjun, et al. All-solid-state lithium-ion batteries based on polymer electrolytes:State of the art, challenges and future trends[J]. Energy Storage Science and Technology, 2016, 5 (5):627-648.
[7] 何向明, 蒲薇华, 王莉, 等. 锂离子塑性晶体常温固体电解质[J]. 化学进展, 2006 (1):24-29. HE Xiangming, PU Weihua, WANG Li, et al. Plastic crystals:An effective ambient temperature all-solid-state electrolyte for lithium batteries[J]. Progress in Chemistry, 2006 (1):24-29.
[8] JIN L, NAIRN K M, FORSYTH C M, et al. Structure and transport properties of a plastic crystal ion conductor:Diethyl (methyl) (isobutyl) phosphonium hexafluorophosphate[J]. Journal of the American Chemical Society, 2012, 134 (23):9688-9697.
[9] MACFARLANE D R, MEAKIN P, SUN J, et al. Pyrrolidinium imides:A new family of molten salts and conductive plastic crystal phases[J]. The Journal of Physical Chemistry B, 1999, 103 (20):4164-4170.
[10] ADEBAHR J, GROZEMA F C, DELEEUW S W, et al. Structure and dynamics of the plastic crystal tetramethylammonium dicyanamide-A molecular dynamics study[J]. Solid State Ionics, 2006, 177 (33):2845-2850.
[11] ABU-LEBDEH Y, ALARCO P J, ARMAND M. Conductive organic plastic crystals based on pyrazolium imides[J]. Angewandte Chemie International Edition, 2003, 42 (37):4499-4501.
[12] HAN H-B, NIE J, LIU K, et al. Ionic liquids and plastic crystals based on tertiary sulfonium and bis (fluorosulfonyl)imide[J]. Electrochimica Acta, 2010, 55 (3):1221-1226.
[13] IRANIPOUR N, GUNZELMANN D J, SEEBER A, et al. Ionic transport through a composite structure of N-ethyl-N-methylpyrrolidinium tetrafluoroborate organic ionic plastic crystals reinforced with polymer nanofibres[J]. Journal of Materials Chemistry A, 2015, 3 (11):6038-6052.
[14] YOSHIZAWA-FUJITA M, KISHI E, SUEMATSU M, et al. A plastic electrolyte material in a highly desirable temperature range:N-ethyl-N-methylpyrrolidinium bis (fluorosulfonyl)amide[J]. Chemistry Letters, 2014, 43 (12):1909-1911.
[15] FORSYTH M, HUANG J, MACFARLANE D R. Lithium doped-methyl-ethylpyrrolidinium bis (trifluoromethanesulfonyl) amide fast-ion conducting plastic crystals[J]. Journal of Materials Chemistry, 2000, 10 (10):2259-2265.
[16] SUNARSO J, SHEKIBI Y, EFTHIMIADIS J, et al. Optimising organic ionic plastic crystal electrolyte for all solid-state and higher than ambient temperature lithium batteries[J]. Journal of Solid State Electrochemistry, 2012, 16 (5):1841-1848.
[17] PRINGLE J M. Recent progress in the development and use of organic ionic plastic crystal electrolytes[J]. Physical Chemistry Chemical Physics, 2013, 15 (5):1339-1351.
[18] JIN L, HOWLETT P C, PRINGLE J M, et al. An organic ionic plastic crystal electrolyte for rate capability and stability of ambient temperature lithium batteries[J]. Energy & Environmental Science, 2014, 7 (10):3352-3361.
[19] WANG X, ZHU H, GREENE G W, et al. Enhancement of ion dynamics in organic ionic plastic crystal/PVDF composite electrolytes prepared by co-electrospinning[J]. Journal of Materials Chemistry A, 2016, 4 (25):9873-9880.
[20] HOWLETT P C, PONZIO F, FANG J, et al. Thin and flexible solid-state organic ionic plastic crystal-polymer nanofibre composite electrolytes for device applications[J]. Physical Chemistry Chemical Physics, 2013, 15 (33):13784-13789.
[21] ZHOU Y, WANG X, ZHU H, et al. Solid-state lithium conductors for lithium metal batteries based on electrospun nanofiber/plastic crystal composites[J]. ChemSusChem, 2017, 10 (15):3135-3145.
[22] PONT A L, MARCILLA R, DE MEATZA I, et al. Pyrrolidinium-based polymeric ionic liquids as mechanically and electrochemically stable polymer electrolytes[J]. Journal of Power Sources, 2009, 188 (2):558-563.
[23] SHAPLOV A S, MARCILLA R, MECERREYES D. Recent advances in innovative polymer electrolytes based on poly (ionic liquid)s[J]. Electrochimica Acta, 2015, 175:18-34.
[24] LI X, ZHANG Z, LI S, et al. Polymeric ionic liquid-ionic plastic crystal all-solid-state electrolytes for wide operating temperature range lithium metal batteries[J]. Journal of Materials Chemistry A, 2017, 5 (40):21362-21369.
[25] YIN K, ZHANG Z, YANG L, et al. An imidazolium-based polymerized ionic liquid via novel synthetic strategy as polymer electrolytes for lithium ion batteries[J]. Journal of Power Sources, 2014, 258:150-154.
[26] CUI Z Y, XU Y Y, ZHU L P, et al. Preparation of PVDF/PEO-PPO-PEO blend microporous membranes for lithium ion batteries via thermally induced phase separation process[J]. Journal of Membrane Science, 2008, 325 (2):957-963.
[27] FERGUS J W. Ceramic and polymeric solid electrolytes for lithium-ion batteries[J]. J. Power Sources, 2010, 195 (15):4554-4569.
[28] MEYER W H. Polymer electrolytes for lithium-ion batteries[J]. Advanced Materials, 1998, 10 (6):439-448.
[29] XU K. Electrolytes and interphases in Li-ion batteries and beyond[J]. Chem. Rev., 2014, 114 (23):11503-11618.
[30] YIN K, ZHANG Z, LI X, et al. Polymer electrolytes based on dicationic polymeric ionic liquids:Application in lithium metal batteries[J]. Journal of Materials Chemistry A, 2015, 3 (1):170-178.
[31] LU Y, KORF K, KAMBE Y, et al. Ionic-liquid-nanoparticle hybrid electrolytes:applications in lithium metal batteries[J]. Angewandte Chemie International Edition, 2014, 53 (2):488-492.
[32] ZHANG J, BAI Y, SUN X G, et al. Superior conductive solid-like electrolytes:Nanoconfining liquids within the hollow structures[J]. Nano Letters, 2015, 15 (5):3398-3402.
[33] PADHI A K, NANJUNDASWAMY K S, GOODENOUGH J B. Phospho-olivines as positive-electrode materials for rechargeable lithium batteries[J]. Journal of the Electrochemical Society, 1997, 144 (4):1188-1194.
[34] LI X, ZHANG Z, LI S, et al. Polymeric ionic liquid-plastic crystal composite electrolytes for lithium ion batteries[J]. Journal of Power Sources, 2016, 307:678-683.
[35] WU F, TAN G, CHEN R, et al. Novel solid-state Li/LiFePO₄ battery configuration with a ternary nanocomposite electrolyte for practical applications[J]. Advanced Materials, 2011, 23 (43):5081-5085.