1. Bulk-Type All Solid-State Batteries with 5 V Class LiNi0.5Mn1.5O4 Cathode and Li10GeP2S12 Solid Electrolyte.
- Author
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Gwangseok Oh, Masaaki Hirayama, Ohmin Kwon, Kota Suzuki, and Ryoji Kanno
- Subjects
- *
SOLID state batteries , *ENERGY storage , *ENERGY density , *LITHIUM compounds , *CATHODES , *SOLID electrolytes - Abstract
All solid-state batteries are of key importance in the development of next-generation energy storage devices with high energy density. Herein, we report the fabrication and operation of bulk-type 5 V-class all solid-state batteries consisting of LiNi0.5Mn1.5O4 cathode, Li10GeP2S12 solid-electrolyte, and Li metal anode. The 1st discharge capacity is about 80 mAh g-1 with an average voltage of 4.3 V. The discharge capacity gradually decreases during the subsequent cycles. X-ray diffraction and electrochemical impedance spectroscopy measurements reveal that the capacity fading results from the growth of a resistive interfacial layer on the cathode composite. The development of suitable conductive additive and sulfide solid electrolyte materials is essential for the development of high-voltage all solid-state batteries. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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