Nano-Micro Letters
·
2019
·Vol. 11
·期 1
·1-12
·
IF 9.043
Wang Siliang,Wang Qiang,Zeng Wei,Wang Min,Ruan Limin,Ma Yanan
Restricted by their energy storage mechanism, current energy storage devices have certain drawbacks, such as low power density for batteries and low energy density for supercapacitors. Fortunately, the nearest ion capacitors, such as lithium-ion and sodium-ion capacitors containing battery-type and capacitor-type electrodes, may allow achieving both high energy and power densities. For the inspiration, a new zinc-ion capacitor (ZIC) has been designed and realized by assembling the free-standing manganese dioxide–carbon nanotubes (MnO 2 –CNTs) battery-type cathode and MXene (Ti 3 C 2 T x ) capacitor-type anode in an aqueous electrolyte. The ZIC can avoid the insecurity issues that frequently occurred in lithium-ion and sodium-ion capacitors in organic electrolytes. As expected, the ZIC in an aqueous liquid electrolyte exhibits excellent electrochemical performance (based on the total weight of cathode and anode), such as a high specific capacitance of 115.1 F g −1 (1 mV s −1 ), high energy density of 98.6 Wh kg −1 (77.5 W kg −1 ), high power density of 2480.6 W kg −1 (29.7 Wh kg −1 ), and high capacitance retention of ~ 83.6% of its initial capacitance (15,000 cycles). Even in an aqueous gel electrolyte, the ZIC also exhibits excellent performance. This work provides an essential strategy for designing next-generation high-performance energy storage devices.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Advanced Science
·
2024
·
IF 14.3
Cuiqin Fang,Jing Han,Qingjun Yang,Zhenguo Gao,Di Tan,Tiandi Chen,Bingang Xu
MXene-based Zn-ion capacitors (ZICs) with adsorption-type and battery-type electrodes demonstrate high energy storage and anti-self-discharge capabilities, potentially being paired with triboelectric nanogenerators (TENGs) to construct self-powered systems. Nevertheless, inadequate interlayer spacing, deficient active sites, and compact self-restacking of MXene flakes pose hurdles for MXene-based ZICs, limiting their applications. Herein, black phosphorus (BP)-Zn-MXene hybrid is formulated for MXene-based ZIC via a two-step molecular engineering strategy of Zn-ion pre-intercalation and BP nanosheet assembly. Zn ions as intercalators induce cross-linking of MXene flakes with expandable interlayer spacing to serve as scaffolds for BP nanosheets, thereby providing sufficient accessible active sites and efficient migration routes for enhanced Zn-ion storage. The density functional theory calculations affirm that zinc adsorption and diffusion kinetics are significantly improved in the hybrid. A wearable ZIC with the hybrid delivers a competitive areal energy of 426.3 µWh cm −2 and ultra-low self-discharge rate of 7.0 mV h −1 , achieving remarkable electrochemical matching with TENGs in terms of low energy loss, matched capacity, and fast Zn-ion storage. The resultant self-powered system efficiently collects and stores energy from human motion to power microelectronics. This work advances the Zn-ion storage of MXene-based ZICs and their synergy with TENG in self-powered systems.
研究领域:
材料科学
·
能源存储
·
纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
·
2022
·
IF 8.907
Yi Zhang,Pengcheng Xie,Chunhai Jiang,Zhimin Zou
Nitrogen and oxygen co-doped micro-foam like mesoporous carbons are prepared from gelatin, an abundant hydrolyzed product of animal collagen with high carbon content and fruitful heteroatoms. Benefiting from the swelled structure of gelatin after pre‑carbonization at 300 °C, the following moderate chemical activation with KOH results in highly mesoporous carbons with specific surface area over 3000 m 2 g −1 and total pore volume larger than 1.96 cm 3 g −1 while preserving the micro-foam structure. As cathode materials of zinc ion capacitors (ZICs), the carbon micro-foams display very encouraging energy storage performance in both organic and aqueous electrolytes. A high energy density of 90 Wh kg −1 is obtained at a power density of 445 W kg −1 in 1 M Zn(CF 3 SO 3 ) 2 /DMF ( N , N -dimethylformamide) electrolyte, whereas in 1 M ZnSO 4 aqueous electrolyte the ZIC exhibits much better rate capability (54 Wh kg −1 at 14650 W kg −1 ) possibly due to the better wettability and higher ionic conductivity. These excellent electrochemical properties suggest that the N and O co-doped mesoporous carbon micro-foams derived from gelatin can be potential cathode materials of high-performance Zn-ion capacitors.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Cuiqin Chao,Mengqi Man,Xingchao Wang,Yan Wu,Fei Zhang,Miaomiao Wu,Qian Xiang,Zhiqiang Luo,Ying Sun
Aqueous zinc-ion capacitors (ZICs) are expected to become a new generation of energy storage systems because of their unique advantages. However, the dendritic problem of the Zn anode is still a bottleneck for their large-scale applications. Herein, we introduce a poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) layer on a Zn anode to tackle the dendrite issue. Benefiting from good adhesion and film-forming characteristics, PEDOT:PSS is evenly coated on a zinc anode surface by a simple coating strategy to form a dense artificial film. The well-ordered PEDOT:PSS layer can effectively regulate the deposition direction of zinc ions and effectively prevent water from the zinc surface, resulting in uniform Zn plating/stripping without dendrite growth. A symmetrical cell assembled with PEDOT:PSS@Zn exhibits dendrite-free Zn plating/stripping behavior with stable cycling over 2670 h at a current density of 0.5 mA cm–2 and can also operate correctly at 10 mA cm–2 for up to 420 h. In addition, this ultrastable anode is equipped with an AC cathode to enable a stable full capacitor with long cycle stability (10,000 cycles).
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Bo Yong,Jianhui Zhu,Shichang Sun,Yanyi Wang,Peixin Zhang,Dingtao Ma
Poor transport kinetics, structural degradation, and an unstable electrode-electrolyte interface are the primary issues that significantly deteriorate the electrochemical performance of zinc-ion supercapacitors (ZISCs). To address these issues, we propose the concept of a hydroxylated borophene-bonded transport network embedded within a polyvinyl alcohol (PVA)/ZnSO 4 gel electrolyte (PVA/B) to construct a robust gel electrolyte. To elucidate the mechanism of this rationally designed gel electrolyte in regulating ion transport and interphase chemistry, comprehensive investigations, including simulations and diverse characterization techniques, were conducted. The results demonstrate that the formation of a C-O-B covalent bond network between the hydroxylated borophene modifier and PVA polymer facilitates rapid and uniform ion and electron transport. Moreover, the covalent bond, combined with a rough and porous surface, enhances interfacial transport kinetics. The use of the PVA/B gel electrolyte results in stable adsorption/desorption behavior and increased electric double-layer capacitance (EDLC). Additionally, gel and solid-state MXene//PVA/B//MXene ZISCs exhibit superior rate performance and cycling stability (20000 cycles). This approach provides valuable insights into gel electrolyte design and advances the development of high-performance quasi-solid ZISCs.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Energy Materials
·
2020
·Vol. 10
·期 24
·2001024
·
IF 25.245
Zhaodong Huang,Ao Chen,Funian Mo,Guojin Liang,Xinliang Li,Qi Yang,Ying Guo,Ze Chen,Qing Li,Binbin Dong,Chunyi Zhi
Output voltage and self-discharge rate are two important performance indices for supercapacitors, which have long been overlooked, though these play a very significant role in their practical application. Here, a zinc anode is used to construct a zinc ion hybrid capacitor. Expanded operating voltage of the hybrid capacitor is obtained with novel electrolytes. In addition, significantly improved anti-self-discharge ability is achieved. The phosphorene-based zinc ion capacitor exploiting a “water in salt” electrolyte with a working potential can reach 2.2 V, delivering 214.3 F g −1 after 5000 cycles. The operating voltage is further extended to 2.5 V through the use of an organic solvent as the electrolyte; the solvent is prepared by adding 0.2 m ZnCl 2 into the tetraethylammonium tetrafluoroborate in propylene carbonate (Et 4 NBF 4 /PC) solvent, and it exhibits 105.9 F g −1 even after 9500 cycles. More importantly, the phosphorene-based capacitors possess excellent anti-self-discharge performance. The capacitors retain 76.16% of capacitance after resting for 300 h. The practical application of the zinc ion capacitor is demonstrated through a flexible paper-based printed microcapacitor. It is believed that the developed zinc ion capacitor can effectively resolve the severe self-discharge problem of supercapacitors. Moreover, high-voltage zinc ion capacitors provide more opportunities for the application of supercapacitors.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
·
2024
·
IF 11.2
Yi Zhang,Zhimin Zou,Qi Liu,Yu Qiao,Chunhai Jiang
Zinc-ion capacitors (ZICs) are promising energy storage devices due to their balance between the energy and power densities inherited from Zn-ion batteries and supercapacitors, respectively. However, the low specific capacitance of carbon cathode materials and the dendrite growth on Zn anode have set fatal drawbacks to their energy density and cycle stability. Herein, we demonstrate that, in 1 M Zn(CF 3 SO 3 ) 2 /DMF (N, N-dimethylformamide) electrolyte, confining oxygen in carbon cathode materials via high-energy ball milling can synergistically introduce additional pseudocapacitance on the cathode side while suppressing the dendrite growth on Zn anode side, which jointly lead to high energy density (94 Wh kg −1 at 448 W kg −1 ) and long cycle stability of ZICs. The hydroxyl group in carbon cathode can be transformed to C—O—Zn together with the release of protons during the initial discharge, which in turn stimulates the defluorination of C F 3 SO 3 − anions and formation of ZnF 2 on both cathode and anode. The ZnF 2 formed on the surface of the Zn anode suppresses the dendrite growth by regulating the Zn 2+ deposition/stripping in a reticular structure, resulting in the excellent cycle stability. This work provides a facile strategy to rationally design and construct high energy and stable ZICs through engineering the oxygen-bearing functional groups in carbon cathode materials.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Science
·
2024
·Vol. 11
·期 32
·2404323
·
IF 14.3
Yongfeng Bu,Qin Kang,Zhaomin Zhu,Hongyu Zhang,Yuman Li,Shihao Wang,Shengda Tang,Li Pan,Lijun Yang,Hongyu Liang
Addition of organic compounds containing O/N heteroatoms to aqueous electrolytes such as ZnSO 4 (ZS) solutions is one of the effective strategies to inhibit Zn anode dendrites and side reactions. However, addressing the stability of Zn plating/stripping at high current densities and areal capacities by this method is still a challenge, especially in capacitors known for high power and long life. Herein, an organic heterocyclic compound of 1, 4, 7, 10-tetraazacyclododecane (TC) containing four symmetrically distributed N atoms is employed as ZS additive, expanding the life of Zn anodes from ≈ 30 h to 1000 and 240 h at deep plating/stripping conditions of 10 and 20 mA cm −2 /mAh cm −2 , respectively; the cumulative capacity is as high as 5.0 Ah cm −2 with 99% Coulombic efficiency, far exceeding reported additives. TC with higher binding energies than H 2 O for Zn species tends to adsorb to Zn (002) in a lying manner and participate in the solvation shell of Zn 2+ , thus avoiding Zn dendrites and side-reaction damage, especially at high current densities. The TC-endowed Zn anode's stability under such extreme conditions is verified in Zn-ion capacitors (i.e., > 94.6% capacity retention after 28 000 cycles), providing new insights into the development of high-power Zn-based energy storage devices.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Nano-Micro Letters
·
2021
·Vol. 13
·期 1
·1-18
·
IF 16.419
Fan Wenjie,Ding Jia,Ding Jingnan,Zheng Yulong,Song Wanqing,Lin Jiangfeng,Xiao Caixia,Zhong Cheng,Wang Huanlei,Hu Wenbin
Aqueous zinc-based batteries (AZBs) attract tremendous attention due to the abundant and rechargeable zinc anode. Nonetheless, the requirement of high energy and power densities raises great challenge for the cathode development. Herein we construct an aqueous zinc ion capacitor possessing an unrivaled combination of high energy and power characteristics by employing a unique dual-ion adsorption mechanism in the cathode side. Through a templating/activating co-assisted carbonization procedure, a routine protein-rich biomass transforms into defect-rich carbon with immense surface area of 3657.5 m 2 g −1 and electrochemically active heteroatom content of 8.0 at%. Comprehensive characterization and DFT calculations reveal that the obtained carbon cathode exhibits capacitive charge adsorptions toward both the cations and anions, which regularly occur at the specific sites of heteroatom moieties and lattice defects upon different depths of discharge/charge. The dual-ion adsorption mechanism endows the assembled cells with maximum capacity of 257 mAh g −1 and retention of 72 mAh g −1 at ultrahigh current density of 100 A g −1 (400 C), corresponding to the outstanding energy and power of 168 Wh kg −1 and 61,700 W kg −1 . Furthermore, practical battery configurations of solid-state pouch and cable-type cells display excellent reliability in electrochemistry as flexible and knittable power sources.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
ChemSusChem
·
2021
·Vol. 14
·期 10
·2205-2215
·
IF 8.928
Dongfang Guo,Zijiong Li,Dianzhang Wang,Min Sun,Haiyan Wang
Graphical The power of doubles : A zinc ion capacitor assembled using a zinc ion-activated double transition metal phosphide/graphene battery anode material shows excellent energy density and cycling stability. The anode well compensates for the lack of electrochemical kinetics of the anode during the energy storage process and also effectively inhibits the formation of zinc dendrites and other by-products. This provides more feasibility for the long-term stable output of zinc ion capacitors. Zinc ion capacitors (ZICs) composed of capacitor-type cathodes and battery-type anodes have attracted widespread attention thanks to the huge potential in the next generation of low-cost energy-storage devices. It is a challenge to explore a universal anode for aqueous ZICs with high-efficiency energy-storage characteristics. In this work, the double-transition-metal composite Co x Ni 2− x P/reduced graphene oxide (rGO) with sufficient electrochemical activity and charge-transfer kinetics was successfully synthesized. The Zn@CoNiP/rGO anode obtained by zinc-ion activation and a biomass-derived porous carbon cathode (PC) were assembled into an aqueous ZIC (CNP–ZIC) in 2 m ZnSO 4 . Finally, the CNP–ZIC reveals excellent energy and power densities with a working potential range of 0.2–1.9 V. CNP–ZICs shows high capacitance of up to 356.6 F g −1 at 0.5 A g −1 (based on the mass of active material on the PC cathode), which is far superior to the performance of conventional asymmetric energy storage devices (CoNiP/rGO//PC and Co 2 P/rGO//PC). The CNP–ZIC exhibits both a very high energy density of 143.14 Wh kg −1 and good cycling life (∼92.2 % retention after 10000 charge–discharge cycles at 7.5 A g −1 ). There is no doubt that this work provides a promising strategy for assembling novel zinc ion hybrid supercapacitors with high efficiency and stable output.
研究领域:
材料科学
·
电化学
·
储能技术
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2025
·
IF 9.8
Jiajun He,Shaopei Yang,Yujia Guo,Yongqi Mi,Pengcheng Du
Carbon-based materials, particularly activated carbon (AC), are widely used as electrodes in supercapacitors due to their high surface area, tunable pore size, and excellent conductivity. However, the capacitive performance of AC can be further enhanced by incorporating heteroatoms to induce pseudo-capacitance. In this study, we developed triazine-based covalent organic frameworks (COFs-CTF) through imine bonding, followed by high-temperature calcination to produce porous N-doped activated carbon (C-CTF-COF). The activation of C-CTF-COF with KOH at varying temperatures resulted in a series of activated porous carbon materials (AC-CTF-COF-T), which were tested as electrode materials for zinc-ion capacitors (ZICs). Among these materials, AC-CTF-COF-800 demonstrated outstanding electrochemical performance, achieving a specific capacity of 159.8 mAh g −1 at 1 A g −1 and an energy density of 113.44 Wh kg −1 at 683 W kg −1 . Additionally, AC-CTF-COF-800 exhibited exceptional cycling stability, retaining 95.01 % of its initial capacity after 10,000 cycles at 10 A g −1 . These results highlight the potential of AC-CTF-COF-T as a high-performance electrode material for ZICs, offering significant improvements in both energy and cycle stability.
研究领域:
材料科学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ELECTRONIC MATERIALS
·
2024
·Vol. 53
·期 12
·7762-7772
·
IF 2.2
Dong Ziming,Dou Jiali,Ye Lin,Jiang Xihuan,Jiao Luwen,Liu Xiaojie,Wang Song
Slow carbonization (SC) and fast carbonization (FC) methods were applied and compared during the preparation of carbon materials using potassium citrate as raw material. The porous carbon material obtained by the SC method (SCPC800) had a slightly higher specific surface area than that obtained by the FC method (FCPC800). When SCPC800 was applied in the construction of a zinc–ion capacitor (ZIC), the obtained ZIC displayed a high mass specific capacitance (MSC) value of 309.5 F g −1 and a specific energy of 155.2 Wh kg −1 at the 0.2 A g −1 current density. FCPC800 showed similar electrochemical performance as SCPC800. The ZIC with the FCPC800 as electrode exhibited an MSC value of 300.7 F g −1 with a specific energy of 150.8 Wh kg −1 at the 0.2 A g −1 current density. Meanwhile, the SCPC800 and FCPC800-based ZICs showed good rate capability and cycle stability. Compared with the SC method, the FC method showed a significant advantage in reducing sample preparation time, which can greatly increase the preparation efficiency and reduce energy consumption. Therefore, as an efficient method, the FC method showed broad application prospects in the preparation of carbon materials for ZIC. Graphical Porous carbon materials prepared from potassium citrate for zinc-ion capacitor
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）