Employing only chain connectivity of a cation and anion with neutral monomers in between with mean-field electrostatics, we show that our model captures the high-dielectric behavior of zwitterions. We also predict an optimum in the capacitance of zwitterionic media as a
To summarize, we successfully prepared zwitterionic polymer-functionalized MXene nanosheets through a two-step chemical modification method. Firstly, the MXene nanosheets were modified by the in-situ self-assembly of PDA. Then, the PEIS was introduced through Michael addition with PDA. The as-prepared MXene-PEIS exhibits fine anti-bacterial
Request PDF | Designing Zwitterionic Gel Polymer Electrolytes with Dual‐Ion Solvation Regulation Enabling Stable Sodium Ion Capacitor | Sodium ion capacitors (SICs) show high energy/power
Employing only chain connectivity of a cation and anion with neutral monomers in between with
Excellent electrode–electrolyte interfacial contact and the unique high-speed ion channels of the zwitterionic polymer chains effectively reduce interfacial resistance and polarization. In addition, the positive regulatory effect of the polymer chains on the ordered deposition of Zn 2+ helps to realize stable dendrite-free Zn anodes in flexible Zn-ion capacitors
In article number 2300068, Fangyuan Hu and co-workers develop a novel gel polymer electrolyte that containing a 3-(1-vinyl-3-imidazolio) propanesulfonate zwitterion, which shows the dual effects of fast desolvation near the interface and rapid ion transport through the interface to increase the kinetics of anions and cations
When applying the zwitterionic gel electrolyte, our graphene-based solid-state supercapacitor reaches a volume capacitance of 300.8 F cm−3 at 0.8 A cm−3 with a rate capacity of only 14.9%
Zwitterionic polymers can be synthesized by copying monomers containing cationic and anionic functional groups, as shown in Table 1 [5, 24].The initial synthesis of polymerizable betaine monomers, followed by copolymerization with other functional monomers is an achievable approach [54, 58].Grafting zwitterionic functional groups onto existing polymer
The designed Zwitterionic GPE can stabilize 4.0 V hard carbon//activated carbon SICs with 95.3% capacity retention after 9000 cycles, showing a high energy density of 140.2 Wh kg −1. This study highlights the regulation of ion-solvent chemistry and provides a guiding principle in electrolyte design for advanced hybrid ion capacitors.
3 天之前· As shown in Fig. 3 c and Fig. S4, the ionic conductivities of zwitterionic polymer co-polymerized PADS-5.5-M 2+ ranged from 70 to 90 mS cm −1, significantly higher than those of PAM-5.5-M 2+ (25–35 mS cm −1) at room temperature. The directional diffusion pathways constructed by ionic groups in zwitterionic polymer could greatly enhance the ionic diffusion
Employing only chain connectivity of a cation and anion with neutral
Zwitterionic polymer has strong reversible self-healing behaviors and can be used to promote
The assembled PAD@SC-based flexible Zn-ion capacitors possess high
Flexible zinc-ion hybrid capacitors (ZIHCs) based on hydrogel electrolytes are an up-and-coming and highly promising candidate for potential large-scale energy storage due to their combined complementary advantages of zinc batteries and capacitors.
Meanwhile, aqueous zinc-ion hybrid capacitors (ZIHC) Notably, the zwitterionic groups on the polymer molecular chain established ion migration channels for anions and cations in the electrolyte. The strong interaction between sulfonic acid groups and Zn 2+ facilitated rapid transfer of Zn 2+ from the electrolyte to the electrode surface (t zn 2+ =0.71),
Employing only chain connectivity of a cation and anion with neutral monomers in between with mean-field electrostatics, we show that our model captures the high-dielectric behavior of zwitterions. We also predict an optimum in the capacitance of zwitterionic media as a function of chain length.
The designed Zwitterionic GPE can stabilize 4.0 V hard carbon//activated carbon SICs with 95.3% capacity retention after 9000 cycles, showing a high energy density of 140.2 Wh kg−1. This study highlights the regulation of ion-solvent chemistry and provides a guiding principle in electrolyte design for advanced hybrid ion capacitors.
Here, an advanced zwitterionic gel polymer electrolyte (GPE) is developed to weaken the ion-solvent interactions. The 3-(1-vinyl-3-imidazolio) propanesulfonate (VIPS) zwitterions help to lower the desolvation barriers,
Employing only chain connectivity of a cation and anion with neutral monomers in between with mean-field electrostatics, we show that our model captures the high-dielectric behavior of zwitterions. We also predict an optimum in the capacitance of zwitterionic media as a function of chain length.
Liu et al. [111] prepared a zwitterionic gel electrolyte using in the sodium ion capacitors (SICs) to weaken the ion-solvent interactions. Zwitterionic polymer has strong reversible self-healing behaviors and can be used to promote self-repairability of stretchable electrochemical devices [56, 116, 121]. In addition, zwitterions also can be utilized to improve flame-retardant capacity
Flexible zinc-ion hybrid capacitors (ZIHCs) based on hydrogel electrolytes are an up-and-coming and highly promising candidate for potential large-scale energy storage due to their combined complementary advantages
Here, an advanced zwitterionic gel polymer electrolyte (GPE) is developed to weaken the ion-solvent interactions. The 3-(1-vinyl-3-imidazolio) propanesulfonate (VIPS) zwitterions help to lower the desolvation barriers, enabling fast ion transfer kinetics for constructing stable quasi-solid-state SICs. Furthermore, the decomposition of VIPS
The assembled PAD@SC-based flexible Zn-ion capacitors possess high specific capacitance (85.4 mAh g −1), rate performance, and cycling stability (10000 cycles at 5 A g −1), indicating remarkable potential for practical application in flexible power supplies.
3 天之前· As shown in Fig. 3 c and Fig. S4, the ionic conductivities of zwitterionic polymer co
Zwitterionic polymer has strong reversible self-healing behaviors and can be used to promote self-repairability of stretchable electrochemical devices [56, 116, 121]. In addition, zwitterions also can be utilized to improve flame-retardant capacity because of the strong water absorption which will greatly enhance the safety of electrochemical
Using a simple incompressible discrete gaussian-chain mean-field theory with electrostatic interactions, we demonstrate that zwitterionic polymers exhibit dielectric constants on the order of hundreds. We also predict nonmonotonicity in dielectric constant as a function of chain length, leading to an optimal dielectric constant.
The assembled PAD@SC-based flexible Zn-ion capacitors possess high specific capacitance (85.4 mAh g −1), rate performance, and cycling stability (10000 cycles at 5 A g −1), indicating remarkable potential for practical application in flexible power supplies. 1. Introduction
Flexible zinc-ion hybrid capacitors (ZIHCs) based on hydrogel electrolytes are an up-and-coming and highly promising candidate for potential large-scale energy storage due to their combined complementary advantages of zinc batteries and capacitors.
Here, an advanced zwitterionic gel polymer electrolyte (GPE) is developed to weaken the ion-solvent interactions. The 3- (1-vinyl-3-imidazolio) propanesulfonate (VIPS) zwitterions help to lower the desolvation barriers, enabling fast ion transfer kinetics for constructing stable quasi-solid-state SICs.
Flexible zinc-ion hybrid capacitors (ZIHCs) based on hydrogel electrolytes are an up-and-coming and highly promising candidate for potential large-scale energy storage due to their combined complem...
In this study, an autocatalytic system consisting of Laa, zinc chloride (ZnCl 2), and hydrogen peroxide (H 2 O 2) was developed to synthesize hydrogel electrolytes for flexible Zn-ion capacitors (FZICs).
However, the use of liquid electrolytes inevitably results in direct contact between water and the Zn metal anode; this can exacerbate the growth of Zn dendrites and lead to strong interfacial side reactions, such as hydrogen and oxygen evolution reactions , .
We are deeply committed to excellence in all our endeavors.
Since we maintain control over our products, our customers can be assured of nothing but the best quality at all times.