Meiqi Liu's research while affiliated with Changchun Normal University and other places
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Publications (5)
Electrolyte is critical for the electrochemical properties of potassium‐ion batteries. The high‐concentration electrolyte has achieved significant effects in inhibiting the growth of dendrites and improving the cycle life of potassium ion batteries. However, the application remains challenging owing to the issues of high viscosity, low conductivity...
Antimony-based alloys have appealed to an ever-increasing interest for potassium ion storage due to their high theoretical capacity and safe voltage. However, sluggish kinetics and the large radius of K+ lead to limited rate performance and severe capacity fading. In this Letter, highly dispersed antimony-bismuth alloy nanoparticles confined in car...
As a new type of capacitor–battery hybrid energy storage device, metal‐ion capacitors have attracted widespread attention because of their high‐power density while ensuring energy density and long lifespan. Potassium‐ion capacitors (KICs) featuring the merits of abundant potassium resources, lower standard electrode potential, and low cost have bee...
Hybrid ion capacitors show promise to bridge the gap between rechargeable batteries with high energy density and supercapacitors of high power. However, research efforts primarily focus on lithium-ion and/or sodium-ion based capacitors, potassium ion capacitor (KIC) is theoretically more sustainable and promising owing to the high abundance, low st...
Potassium ion batteries (KIBs) have attracted intensive attention considering its similar chemistry with lithium and sodium, nature abundance and low cost of potassium source. However, huge volume expansion and sluggish kinetics induced by large radius of K⁺ usually lead to low capacity and poor cycling life for most electrodes. Herein, nanosheets...
Citations
... [12] Therefore, potassium-ion batteries (PIBs) have been developed to meet the performance, cost, and other requirements for energy storage. [13][14][15][16] In the practical application of automotive power storage systems and power grid energy storage systems, there are high requirements not only for energy density but also for power density and intestinal cycle life. [17] Supercapacitors (SCs) rely on the double electric layer formed between the electrode material and electrolyte to store energy, so they can realize the rapid storage and release of energy, having the characteristics of high power and long cycle life, but their energy density is low. ...
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... Over the past decade, scientists have dedicated tremendous efforts to explore new anode materials other than carbonaceous materials [11][12][13] for alkali-ion batteries, and numerous materials such as metals [14,15], alloys [16,17], and metal oxides/chalcogenides/phosphides [18][19][20][21][22] have been extensively explored. Among them, metal chalcogenides, especially metal selenides, have attained great interest owing to their conversion/alloying reaction induced high reversible capacity. ...
![[object Object]](https://i1.rgstatic.net/ii/profile.image/11431281096675845-1668212664298_Q64/Z-Le.jpg)
... Regarding KIBs, it has been observed that the use of polytetrafluoroethylene (PTFE) as a binder for PBA positive electrodes offers advantages due to the formation of a more stable solid electrolyte interphase compared to polyvinylidene fluoride (PVDF) [53] despite that for practical use PVDF is more suitable. For the negative electrode, it has been demonstrated that the use of CMC as a binder yields high ICE, low polarization, and stable SEI growth compared to sodium polyacrylate (PANa) and PVDF [53,125]. This outcome has been confirmed by a recently published study, which highlights the impact of the binder in terms of electrochemical performance of graphite electrode [103]. ...
... The EN-LCNF// YP-80F PIHCs can exhibit the highest energy density of 110.8 Wh kg −1 at a power density of 100 W kg −1 , and retain an energy density of 60.1 Wh kg −1 even at a power density of 4000 W kg −1 (Fig. 7f ). The energy-power performance of EN-LCNF//YP-80F PIHCs is superior to the most of previously reported PIHCs (Table S7), such as SHPNC//AC (Luo et al. 2020), C 3 N 4 @NCNF//AC (Shen et al. 2021), NCP//AC (Liu et al. 2020b), NCNT//AC , P/O-PCS//AC , and NPCF// AC (Sun et al. 2022). The fully-charged EN-LCNF//YP-80F PIHCs can power a thermometer operating well as illustrated in the insert of Fig. 7f, demonstrating the promising practicability of EN-LCNF. ...
... MoS 2 [41] 102 mAh g −1 (100 mAg 1 ) 86 mAh g −1 (200 cycles) MoS 2 @C [42]~290 mAh g −1 (500 mAg 1 ) 241 mAh g −1 (100 cycles) MoS 2 @Cnanosheets [43] 300 mAh g −1 (100 mA g −1 ) 164.5 mAh g −1 (350 cycles) MoS 2 /MXene [44] 271.4 mAh g −1 (50 mA g −1 ) 206 mAh g −1 (100 cycles) C-MoS 2 [39]~340 mAh g −1 (1000 mA g −1 ) 273 mAh g −1 (100 cycles) This work 272.49 mAh g −1 (500 mA g −1 ) 269.5 mAh g −1 (100 cycles) ...
