Enhancing the cycling performance of MgH2-LiBH4 based solid-state batteries via stacking pressure tailoring
By
Zhuang, X.; Chen, H.; He, S.; Hu, L.; Wang, H.; Hu, R.
(provided by Clarivate)
Source
Materials Advances
Volume5Issue10Page4131-5
DOI10.1039/d4ma00177j
Published
2024
Indexed
2024-09-12
Document Type
Journal Paper
Abstract
MgH2 has been considered a promising anode material for all-solid-state batteries (ASSBs) due to its high theoretical capacity, low voltage plateau (0.5 V vs. Li+/Li), and minimal voltage hysteresis. Herein, by applying 25 MPa stacking pressure, the interfacial issues caused by the volume expansion of MgH2 electrodes can be well suppressed, which ultimately improves the electrochemical performance of the MgH2 anode material. The MgH2 half-cell achieves a high capacity of 1212 mA h g-1 after 200 cycles at 0.5C. When assembled with a S cathode, the Mg-LiH|LiBH4|S full cell delivers a high specific capacity of 1300 mA h g-1 at 0.1C and stably operates over 100 cycles. This work provides a facile strategy to improve the performance of the MgH2 anode in ASSB devices via stacking pressure tailoring.
Author Information
Addresses
Zhuang, XueyeChen, HaoliangHe, ShimanHu, LongWang, HuiHu, RenzongGuangdong Provincial Key Lab. of Adv. Energy Storage Mater., South China Univ. of Technol., Guangzhou, China
Categories/ Classification
Research AreasEnergy & FuelsElectrochemistry (provided by Clarivate)
International Patent Classification
H01M10/00 Secondary cells; Manufacture thereof C25B11/00 Electrodes; Manufacture thereof not otherwise provided for C25D17/10 Electrodes H01M4/00 Electrodes
Chemical Indexing
Mg-LiH-LiBH4-S/int LiBH4/int LiH/int H4/int Li/int Mg/int B/int H/int S/int LiBH4/ss H4/ss Li/ss B/ss H/ss LiH/bin Li/bin H/bin Mg/el S/el
Subject Classification codes
A8630FSecondary cellsA8245Electrochemistry and electrophoresisB8410ESecondary cells
CODEN
MAADC9
Controlled Terms
boron compoundselectrochemical electrodeslithium compoundsmagnesium compoundssecondary cells
Uncontrolled Terms
all-solid-state batteriescycling performanceelectrochemical performancehigh theoretical capacityinterfacial issueslow voltage plateauMg-LiH-LiBH4-S/intminimal voltage hysteresispressure 25.0 MPastacking pressure tailoringvoltage 0.5 Vvolume expansion