All solid-state battery using layered oxide cathode, lithium-carbon composite anode and thio-LISICON electrolyte
Journal article, 2016

The investigation of a lithium-carbon composite (Li-C) anode for application in all-solid-state battery, based on (Li2S)(0.75)-(P2S5)(0.25) glassy thio-LISICON electrolyte (Li2S-P2S5) is herein reported. The Li-C anode material is prepared by a mechanochemical, single step synthesis procedure. The Li-C/electrolyte interface is characterized in terms of cyclic voltammetry, electrochemical impedance spectroscopy and galvanostatic cycling in comparison with lithium metal, in order to evaluate the improvements in terms of resistance and lithium stripping deposition ability. Li-C anode powder is pressed into a pellet together with the Li2S-P2S5 electrolyte and Li2ZrO3-coated, Li[Ni0.8Co0.15Al0.05]O-2 cathode powder (NCA-LZO), to form a new type of solid-state battery operating at room temperature. The Li-C/Li2S-P2S5/NCA-LZO battery shows remarkable cycling performance under galvanostatic conditions, particularly if compared to a more conventional configuration employing lithium metal as the anode. In addition, the all solid-state battery is characterized at various current densities, showing satisfactory rate capability. Under long term-cycling condition, performed at low current and prolonged to more than 250 days, the cell shows a stability over 100 cycles without fading. This is considered a remarkable result suggesting the solid-state cell here studied as suitable candidate-for efficient and safe energy storage.

Layered-cathode

Solid-state battery

Thio-LISICON

Li-C anode

Author

[Person 99a2cde3-afeb-41b5-a56b-03c4cc6e8fef not found]

Karlsruhe Institute of Technology (KIT)

Helmholtz

[Person 93a25353-b84f-4f52-a5f4-ab0b5883d09d not found]

Chalmers, Physics, Condensed Matter Physics

[Person afde2e35-28d7-4583-a9f7-df0d3d33b7b7 not found]

Samsung RandD Institute Japan

[Person 5d821a1b-cd90-4dc4-9873-43f91b90e5b3 not found]

Samsung RandD Institute Japan

[Person b4b6939f-7ef2-45b6-b481-5b81ac811c97 not found]

University of Ferrara

Solid State Ionics

0167-2738 (ISSN)

Vol. 296 13-17

Subject Categories

Materials Chemistry

DOI

10.1016/j.ssi.2016.08.014

More information

Latest update

9/15/2020