Preparation and characterization of PEO based Li1.5Al0.5Ge1.5(PO4)3 solid composite electrolyte

doi:10.3969/j.issn.2095-4239.2015.03.005

Abstract

Abstract: PEO-based solid composite electrolyte with the fast ion conductor LAGP(Li_1.5Al_0.5Ge_1.5(PO₄)₃) as a main ionic conductive component and PEO as the binder were prepared by the solution casting method with fixed n(EO)/n(Li)=13, but varying ratio of LiTFSI to LAGP. The structure and morphology of the solid composite electrolyte were characterized by X-ray diffraction(XRD) and scanning electron microscopy(SEM). The conductivity of LAGP-PEO(LiTFSI) electrolyte was analyzed by electrical impedance spectroscopy (EIS). The results show that LAGP is partially complexed with PEO(LiTFSI) and homogeneously distributed in PEO(LiTFSI). Three phases are present, a pure crystalline LAGP phase, amorphous PEO(LiTFSI) phase and a transition phase of the LAGP particles and amorphous PEO(LiTFSI). With w(LAGP)∶w(PEO)=6∶4, the optimal ionic conductivity for LAGP-PEO(LiTFSI) solid composite electrolyte is 2.68×10^-5S/cm at room temperature and 1.86×10^-4S/cm at 373 K which is close to the LAGP. It means that the LAGP addition contributes to the improvements of ionic conductivity not only by prohibiting crystallization but also due to its own ionic conductivity.

Key words: solid composite electrolyte, PEO, LAGP, conductivity

CLC Number:

TQ150

YU Tao, XIE Kai, HAN Yu, WANG Hui. Preparation and characterization of PEO based Li_1.5Al_0.5Ge_1.5(PO₄)₃ solid composite electrolyte[J]. Energy Storage Science and Technology, 2015, 4(3): 273-277.

References

[1] 史美伦. 固体电解质[M]. 重庆：科学技术文献出版社重庆分社,1982.
[2] Croy Jason R,Abouimrane Ali,Zhang Zhengcheng. Next-generation lithium-ion batteries：The promise of near-term advancements[J]. Materials Research Society ,2014,39（5）：407-414.
[3] Amine Khalil,Kanno Ryoji,Tzeng Yonhua. Rechargeable lithium batteries and beyond：Progress,challenges,and future directions[J]. Materials Research Society ,2014,39（5）：395-401.
[4] Ju Lan（鞠兰）,Wang Yanjie（王严杰）,Pan Yi（潘颐）, et al . Preparation and conductivity characteristic of PEO-Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 composite polymer electrolytes[J]. Journal of Materials Science and Engineering （材料科学与工程学报）,2004,22（6）：867-870.
[5] Aravindan Vanchiappan,Gnanaraj Joe,Madhavi Srinivasan. Lithium- ion conducting electrolyte salts for lithium batteries[J]. Chem . Eur .,2011,17：14326-14346.
[6] Thokchom Joykumar S,Chen Christina,Abraham K M,Kuma Binod. High conductivity electrolytes in the PEO x :LiN(SO 2 CF 2 CF 3 ) 2 -Al 2 O 3 system[J]. Solid State Ionics ,2005,176：1887-1893.
[7] Goodenough B John,Youngsik K. Challenges for rechargeable Li batteries[J]. Chem. Mater .,2010,22（3）：587-603.
[8] Kim J,Ji K,Lee J. High conductivity electrolytes in the PEO:LiN(SO 2 CF 2 CF 3 ) 2 -SiO 2 system[J]. J. Power Sources ,2003,415：119-121.
[9] Nagata K,Nanno T. All solid battery with phosphate compounds made through sintering process[J]. Jouranl of Power Sources , 2007,174（2）：832-837.
[10] Nishio Y,Kitaura H,Hayash A. All-solid-state lithium secondary batteries using nanocomposites of NiS electrode/Li 2 S-P 2 S 5 eletrolyte prepared via mechanochemical reaction[J]. Journal of Power Sources ,2009,89（1）：629-632.
[11] Inda Y,Takashi K,Baba M. Development of all-solid lithium-ion battery using Li-ion conducting glass-ceramics[J]. Journal of Power Sources ,2007,174（2）：741-744.
[12] Joykumar S Thokchom,Binod Kumar. Microstructural effects on the superionic conductivity of a lithiated glass-ceramic[J]. Solid State Ionics ,2006,177：727-732.
[13] Huang Lezhi（黄乐之）,Wen Zhaoyin（温兆银）,Jin Jun（靳俊）,Liu Yu（刘宇）. Preparation and characterization of PEO-LATP/LAGP ceramic composite electrolyte membrane for lithium batteries[J]. Journal of Inorganic Materials （无机材料学报）,2012,27（3）：249-252.
[14] Wang Yanjie（王严杰）. Study on PEO based composite polymer electrolytes using Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 as main component and filler[D]. Hangzhou：Zhejiang University,2005.
[15] Angdl C A,Liu C,Sanchez E. Rubbery solid electrolytes with dominant cationic transport and high ambient conductivity[J]. Nature ,1993,362（6416）：137-139.

Preparation and characterization of PEO based Li_1.5Al_0.5Ge_1.5(PO₄)₃ solid composite electrolyte

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