Preparation of thin solid electrolyte by hot-pressing and diamond wire slicing

被引:25
作者
Kotobuki, Masashi [1 ,2 ]
Lei, Houhua [3 ]
Chen, Yu [2 ,4 ]
Song, Shufeng [5 ]
Xu, Chaohe [5 ]
Hu, Ning [5 ]
Molenda, Janina [6 ]
Lu, Li [1 ,2 ]
机构
[1] Natl Univ Singapore, Dept Mech Engn, 9 Engn Dr 1, Singapore 117576, Singapore
[2] Natl Univ Singapore, Suzhou Res Inst, Dushu Lake Sci & Educ Innovat Dist, Suzhou 215123, Peoples R China
[3] Solid Force Pte Ltd, Dushu Lake Sci & Educ Innovat Dist, Suzhou 215123, Peoples R China
[4] Soochow Univ, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Sch Optoelect Sci & Engn, Suzhou 215006, Peoples R China
[5] Chongqing Univ, Coll Aerosp Engn, Chongqing 400044, Peoples R China
[6] AGH Univ Sci & Technol, Fac Energy & Fuels, Mickiewicza 30, PL-30059 Krakow, Poland
基金
中国国家自然科学基金;
关键词
IONIC-CONDUCTIVITY; LITHIUM; TEMPERATURE;
D O I
10.1039/c9ra00711c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The thickness of a solid electrolyte influences the performance of all-solid-state batteries due to increased impedance with a thick electrolyte. Thin solid electrolytes are favourable to improve the performance of all-solid-state batteries due to the short Li ion diffusion path and small volume of the solid electrolytes. Therefore, the preparation of thin solid electrolyte is one of the key process techniques for development of all-solid-state batteries. In this study, thin Li1.5Ge1.5Al0.5(PO4)(3) solid electrolyte with a Na super ion conductor structure is prepared by diamond wire slicing. The Li1.5Ge1.5Al0.5(PO4)(3) solid electrolyte is prepared by melt-quenching followed by crystallization at 800 degrees C for 8 h, after which the crystallized Li1.5Ge1.5Al0.5(PO4)(3) rod is subjected to wire slicing. Thin Li1.5Ge1.5Al0.5(PO4)(3) with a thickness of 200 m is obtained. The crystal structure and cross-sectional morphology are not affected by the slicing. The total Li conductivity of the thin Li1.5Ge1.5Al0.5(PO4)(3) and activation energy are 3.3 x 10(-4) S cm(-1) and 0.32 eV, respectively. The thickness and total conductivity are comparable to those of Li1.5Ge1.5Al0.5(PO4)(3) prepared by the tape-casting method which needs several steps to prepare Li1.5Ge1.5Al0.5(PO4)(3) tape-sheet and high temperature and a long sintering process. The ionic transference number of the thin Li1.5Ge1.5Al0.5(PO4)(3) is 0.999. The diamond wire slicing is a useful method to prepare thin solid electrolytes.
引用
收藏
页码:11670 / 11675
页数:6
相关论文
共 30 条
[1]   Lithium storage capability of lithium ion conductor Li1.5Al0.5Ge1.5(PO4)3 [J].
Feng, J. K. ;
Lu, L. ;
Lai, M. O. .
JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 501 (02) :255-258
[2]   Fabrication of LiNi0.5Mn1.5O4 thin film cathode by PVP sol-gel process and its application of all-solid-state lithium ion batteries using Li1+xAlxTi2-x(PO4)3 solid electrolyte [J].
Hoshina, Keigo ;
Yoshima, Kazuomi ;
Kotobuki, Masashi ;
Kanamura, Kiyoshi .
SOLID STATE IONICS, 2012, 209 :30-35
[3]   Structure, Morphology, and Electrochemical Investigation of LiMn2O4 Thin Film Cathodes Deposited by Radio Frequency Sputtering for Lithium Microbatteries [J].
Hwang, Bing-Joe ;
Wang, Chien-Yu ;
Cheng, Ming-Yao ;
Santhanam, Raman .
JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (26) :11373-11380
[4]  
Kotobuki M., 2018, Ceramic Electrolytes for All-Solid-State Li Batteries
[5]   Poly(vinylidene fluoride)-Based Al Ion Conductive Solid Polymer Electrolyte for Al Battery [J].
Kotobuki, Masashi ;
Lu, Li ;
Savilov, Seruguei V. ;
Aldoshin, Serguei M. .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2017, 164 (14) :A3868-A3875
[6]   Preparation and characterization of Ba-substituted Li1+xAlxGe2-x (PO4)3 (x=0.5) solid electrolyte [J].
Kotobuki, Masashi ;
Hanc, Emil ;
Yan, Binggong ;
Molenda, Janina ;
Lu, Li .
CERAMICS INTERNATIONAL, 2017, 43 (15) :12616-12622
[7]   Improvement of Li ion conductivity of Li5La3Ta2O12 solid electrolyte by substitution of Ge for Ta [J].
Kotobuki, Masashi ;
Song, Shufeng ;
Takahashi, Rika ;
Yanagiya, Shunichi ;
Lu, Li .
JOURNAL OF POWER SOURCES, 2017, 349 :105-110
[8]   Sol-gel synthesis of Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte [J].
Kotobuki, Masashi ;
Koishi, Masaki .
CERAMICS INTERNATIONAL, 2015, 41 (07) :8562-8567
[9]   Preparation of Li7La3Zr2O12 solid electrolyte via a sol-gel method [J].
Kotobuki, Masashi ;
Koishi, Masaki .
CERAMICS INTERNATIONAL, 2014, 40 (03) :5043-5047
[10]   Preparation of Li1.5Al0.5Ti1.5(PO4)3 solid electrolyte via a co-precipitation method [J].
Kotobuki, Masashi ;
Koishi, Masaki ;
Kato, Yoshiki .
IONICS, 2013, 19 (12) :1945-1948