Journal of Semiconductors, Volume. 44, Issue 4, 041601(2023)
Layered double hydroxides as electrode materials for flexible energy storage devices
Figures & Tables(16)
![(Color online) General composition of LDHs[25]. Copyright 2021, Elsevier Ltd.](/Images/icon/loading.gif){kind=icon}
Fig. 1. (Color online) General composition of LDHs[25]. Copyright 2021, Elsevier Ltd.
Fig. 2. (Color online) SEM images of (a) H-NiCo LDH powder, (b) ZIF-67@ACC, and (c) H-NiCo LDH@ACC. (d, f) Capacity comparison curve of H-NiCo LDH@ACC and ACF. (e) Optical image of flexible H-NiCo LDH@ACC//AC devices[44]. Copyright 2019, Elsevier Ltd.
Fig. 3. (Color online) (a) Illustration of flexible Ni–Co LDH@rGO devices. (b) SEM image of 3D Ni–Co LDH@rGO. (c) Charge-discharge curves at different current densities and (d) Ragone plot for the Ni–Co LDH@// crumpled rGO device. (e) Cycle life and Coulombic efficiency curves for the hybrid device. (f–h) Application of flexible Ni–Co LDH@rGO devices[47]. Copyright 2020, Elsevier Ltd.
Fig. 4. (Color online) (a) Synthesis schematic of NiCo-OH/ZnO-NR/CNT-yarn fiber. (b) Schematic diagrams and photographs of the bending angles of a symmetric two-electrode supercapacitor device composed of two NiCo-OH/ZnONR/CNT-yarns at each bending angle. (c) CV curves of the symmetric supercapacitor at different bending angles and (d) capacitance retention after 1000 cycles at a bending angle of 150° and the scan rate of 100 mV/s[51]. Copyright 2020, Elsevier Ltd.
Fig. 5. (Color online) (a) Synthesis sequence diagram of MLDH@PAC. (b) Long-term coulombic efficiency and specific capacity in alternating bend-flat state[58]. Copyright 2019, American Chemical Society.
Fig. 6. (Color online) The (a) flow chart, (b) SEM and (c) TEM image of the GAL film. (d) Photographic images of the GAL film and ASFC device. (e) Photographic image, (f) CV and (g) GCD curves of GAL//GAL AFSC device at various bending angles[10]. Copyright 2022, Elsevier Ltd.
Fig. 7. (Color online) (a) Elemental mapping image of Co–Mn LDH. (b) Comparison of GCD curves of various devices. (c) Optical image of the flexible energy storage devices under bent angles. CV curves of flexible device under (d) 0–180° and (e) –30 to –180°. (f) Optical image of a flexible device unit application[63]. Copyright 2020, Elsevier Ltd.
Fig. 8. (Color online) (a) Schematic illustration of the CC@NiCo2-OH and CC@NiCo2AlX-LDH grown on carbon cloth. (b) Photographs of FASC bent at 0°, 45°, 90°, 180°. (c) GCD curves and (d) specific capacitance retention of the FASC at a current density of 2 A/g. (e) Comparison energy density of various energy storage device[72]. Copyright 2019, Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim.
Fig. 9. (Color online) (a) Schematic illustration of the synthesis process of NSPCs. (b) 120-cycle curves at different current density of 0.5 and 6 C. (c) Rate performance curves of NSPCs-800[81]. Copyright 2016, The Royal Society of Chemistry.
Fig. 10. (Color online) (a) Schematic diagram of TMOs@MXene hollow polyhedron. (b) TEM image of TMOs@MXene hollow polyhedron. (c) Rate performance of pristine Ti3C2Tx, CoO/Co2Mo3O8 and CoO/Co2Mo3O8@MXene anodes. (d) CoO/Co2Mo3O8@MXene's 1200 cycle stability curve under 2 A/g[76]. Copyright 2019, Wiley-VCH Verlag GmbH&Co. KGaA, Weinheim.
Fig. 11. (Color online) (a) The charge-discharge capacity curve at the 1st, 2nd, and 5th laps and (b) cycling performance of CoFe-NO3–-LDH at 1 A/g. The (c) side view and (d) top view of Na migration model diagram. (e) The diffusion barrier profiles for Na migration along the path TC→TE→TC[87]. Copyright 2019, The Royal Society of Chemistry.
Fig. 12. (Color online) (a) The schematic illustration of box-in-box structure of Co/(NiCo)Se2. (b) Tafel plots, (c) cycle stability and (d) rate performance of the Co/(NiCo)Se2 nanocubes[77]. Copyright 2017, The Royal Society of Chemistry.
Fig. 13. (Color online) (a) Fabrication illustration of bulk TiO2 and TCNS. (b) TEM images of Zn–Ti LDH, (c–f) ultrahigh stability and a specific capacity of Zn–Ti LDH@PV[88]. Copyright 2021, Elsevier Ltd.
Fig. 14. (Color online) SEM images of (a) LDH, (b) LDH-S and (c) CDs@LDH-S. (d) Cycling performances of CDs and CDs@LDH-S at 1 A/g. (e) Rate performance at different current density of LDH, LDH-S and CDs@LDH-S. Cycling performance at (f) 0.1 A/g and (g) 0.5 A/g of LDH, LDH-S and CDs@LDH-S[94]. Copyright 2021, Elsevier Ltd.
Table 0. Electrochemical performances of various LDHs-based electrode materials in AIBs.
View tableView in ArticleTable 0. Electrochemical performances of various LDHs-based electrode materials in AIBs.
Material Battery Type Cycling stability (cycle)/ Current density Rate performance Initial coulombic efficiency Ref. ZnO/ZnAl2O4 LIBs 1275 mA·h/g (10th)/0.2 A/g – – [ 80 ]Nitrogen and sulfur co-doped porous carbon LIBs 1175 mA·h/g (120th)/0.5 C 360 mA·h/g at 30 C – [ 81 ]CoO/Co2Mo3O8@MXene LIBs 545 mA·h/g (1200th)/2 A/g 386.1 mA·h/g at 5 A/g 71% [ 76 ]Multiphase Mn-doped Ni sulfides@rGO LIBs 206.1 mA·h/g (50th)/0.1 A/g 103.6 mA·h/g at 1 A/g 68% [ 82 ]Co/(Ni, Co)Se2 SIBs 497 mA·h/g (80th)/0.2 A/g 456 mA·h/g at 5 A/g 80% [ 77 ]Multiphase Mn-doped Ni sufides@rGO SIBs 206.1 mA·h/g (2000th)/0.5 A/g 229.2 mA·h/g at 5 A/g – [ 75 ]CoFe-NO3--LDH SIBs 209 mA·h/g (200th)/1 A/g 228 mA·h/g at at 2 A/g – [ 87 ]TiO2 nanoparticles@CNS SIBs 196.7 mA·h/g (2000th)/2 A/g 197.2 mA·h/g at 10 A/g 41% [ 88 ]MgFe-LDH KIBs 371.6 mA·h/g (300th)/0.1 A/g 144.5 mA·h/g at 10 A/g 88% [ 94 ]CDs@LDH-S KIBs 188 mA·h/g (8000th)/1 A/g 172 mA·h/g at 5 A/g – [ 95 ]
Table 0. Performance comparison of LDH-based electrodes for supercapacitors.
View tableView in ArticleTable 0. Performance comparison of LDH-based electrodes for supercapacitors.
Material Electrolyte Test method Specific capacitance/ current density Capacitance retention (Cycle/current density) Energy density/ Power density Ref. Mn-doped Ni–Co LDH@polyaniline- derived carbon 6 M KOH All-solid-state flexible asymmetric supercapacitor 1282.06 C/g/ 1 A/g 82.66% (8000th/10 A/g) 78.9 W·h/kg/ 1.55 kW/kg [ 58 ]Hollow Ni–Co LDH@ acidified carbon cloth 2 M KOH Flexible free-standing asymmetric supercapacitor 1377 mC/cm2/ 1 mA/cm2 70% (10000th/ 80 mA/cm2) 0.0708 mW·h/cm2/ 0.7 mW/cm2 [ 44 ]Ni–Co LDH@rGO 3 M KOH Asymmetric supercapacitor 2640 F/g/ 1 A/g 80.2% (4000th) 58.4 W·h/kg/ 3.73 kW/kg [ 47 ]NiCo-OH/ZnO-NR/ CNT-yarn 1 M LiOH Flexible symmetric supercapacitor 1278 F/g 60.5% (7000th/ 30 Ma/cm2) 1.38 μW·h/cm2/ 647 μW/cm2 [ 51 ]rGO@Ag nanowire/ Ni-Al LDH 6 M KOH All-solid-state flexible asymmetric supercapacitor 127.2 F/g/ 1 A/g 83.2% (10000th/1 A/g) 35.75 mW·h/cm3/ 1.01 W/cm3 [ 10 ]Ni–Fe LDH@rGO@NF 2 M KOH Flexible asymmetric supercapacitor 1462.5 F/g/ 5 A/g 64.7% (2000th/15 A/g) 17.71 W·h/kg/ 348.49 W/kg [ 59 ]Co-Al LDH@Ni-Co LDH//CC 6 M KOH Flexible quasisolid-state asymmetric supercapacitor 2633. 6 F/g/ 1 A/g 92.5% (5000th/4 A/g) 57.8 W·h/kg/ 0.81 kW/kg [ 64 ]Co–Mn LDH@MnO2 3 M KOH Flexible asymmetric supercapacitor 2325.01 F/g/ 1 A/g 95% (10000th/ 30 mA/cm2) 59.73 W·h/kg/ 1000.09 W/kg [ 63 ]CC@NiCo2Al LDH 1 M KOH Flexible asymmetric supercapacitor 1137 F/g/ 0.5 A/g 91.2% (15000th/5 A/g) 44 W·h/kg/ 462 W/kg [ 72 ]Zn–Mg–Al LDH@ Fe2O3/3D HPCNF 3 M KOH All-solid-state symmetric supercapacior 3437 F/cm2/ 1 mA/cm2 106.5% (40000th/ 50 mA/cm2) 11.62 mW·h/cm3/ 9.999 mW/cm3 [ 73 ]
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Qifeng Lin, Lili Wang. Layered double hydroxides as electrode materials for flexible energy storage devices[J]. Journal of Semiconductors, 2023, 44(4): 041601
Paper Information
Category: Articles
Received: Nov. 15, 2022
Accepted: --
Published Online: Apr. 24, 2023
The Author Email: Wang Lili (liliwang@semi.ac.cn)
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