Realization of high performance polycarbonate-based Li polymer batteries

被引:85
作者
Sun, Bing [1 ]
Mindemark, Jonas [1 ]
Edstrom, Kristina [1 ]
Brandell, Daniel [1 ]
机构
[1] Uppsala Univ, Dept Chem, Angstrom Lab, S-75121 Uppsala, Sweden
关键词
Polymer electrolyte; Polycarbonate; Trimethylene carbonate; Li-ion battery; Interfaces; LITHIUM METAL-ELECTRODE; ION; SALT; INTERFACE; CARBONATE;
D O I
10.1016/j.elecom.2015.01.020
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
This work describes effective approaches to achieve high cell performance of solid-state Li polymer batteries based on high-molecular-weight poly(trimethylene carbonate) (PTMC). The origin of a gradual capacity increase observed during passive storage and/or active cycling in LiFePO4 vertical bar PTMCxLiTFSI vertical bar Li cells was investigated by SEM/EDX, indicating an obvious penetration of the polymer electrolyte through the porous composite electrode at elevated temperatures. Refining the interfacial contacts at the electrode/electrolyte interface by adding PTMC oligomer as an interfacial mediator led to significant capacity enhancement already during initial cycles. Optimized cell performance was achieved through this method rather than other approaches, such as casting electrolyte directly onto the electrode and using a polyether oligomer. Successful long-term cycling stability and rate capability tests also resulted from the suggested strategy. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:71 / 74
页数:4
相关论文
共 28 条
[11]   Interface properties between a lithium metal electrode and a poly(ethylene oxide) based composite polymer electrolyte [J].
Li, Q ;
Sun, HY ;
Takeda, Y ;
Imanishi, N ;
Yang, J ;
Yamamoto, O .
JOURNAL OF POWER SOURCES, 2001, 94 (02) :201-205
[12]   Impedance of interface between PEO:LiTFSI polymer electrolyte and blocking electrodes [J].
Marzantowicz, M. ;
Dygas, J. R. ;
Krok, F. .
ELECTROCHIMICA ACTA, 2008, 53 (25) :7417-7425
[13]   Efficient DNA Binding and Condensation Using Low Molecular Weight, Low Charge Density Cationic Polymer Amphiphiles [J].
Mindemark, Jonas ;
Bowden, Tim .
MACROMOLECULAR RAPID COMMUNICATIONS, 2010, 31 (15) :1378-1382
[14]   Electrolytes for solid-state lithium rechargeable batteries: recent advances and perspectives [J].
Quartarone, Eliana ;
Mustarelli, Piercarlo .
CHEMICAL SOCIETY REVIEWS, 2011, 40 (05) :2525-2540
[15]   Lithium batteries: Status, prospects and future [J].
Scrosati, Bruno ;
Garche, Juergen .
JOURNAL OF POWER SOURCES, 2010, 195 (09) :2419-2430
[16]   Rechargeable Li/LiFePO4 cells using N-methyl-N-butyl pyrrolidinium bis(trifluoromethane sulfonyl)imide-LiTFSI electrolyte incorporating polymer additives [J].
Shin, J. -H. ;
Basak, P. ;
Kerr, J. B. ;
Cairns, E. J. .
ELECTROCHIMICA ACTA, 2008, 54 (02) :410-414
[17]   Characterization of solid polymer electrolytes based on poly (trimethylenecarbonate) and lithium tetrafluoroborate [J].
Silva, MM ;
Barros, SC ;
Smith, MJ ;
MacCallum, JR .
ELECTROCHIMICA ACTA, 2004, 49 (12) :1887-1891
[18]   Preparation and characterization of a lithium ion conducting electrolyte based on poly(trimethylene carbonate) [J].
Smith, MJ ;
Silva, MM ;
Cerqueira, S ;
MacCallum, JR .
SOLID STATE IONICS, 2001, 140 (3-4) :345-351
[19]   Polycarbonate-based solid polymer electrolytes for Li-ion batteries [J].
Sun, Bing ;
Mindemark, Jonas ;
Edstrom, Kristina ;
Brandell, Daniel .
SOLID STATE IONICS, 2014, 262 :738-742
[20]   Solid polymer electrolyte coating from a bifunctional monomer for three-dimensional microbattery applications [J].
Sun, Bing ;
Liao, I-Ying ;
Tan, Semra ;
Bowden, Tim ;
Brandell, Daniel .
JOURNAL OF POWER SOURCES, 2013, 238 :435-441