Fabrication of zinc-based conductive organic framework anode for high-energy-density lithium-ion capacitors

ZHANG Yingkuo; JIA Jiale; LIU Chanjuan; CHEN Jizhi; SUN Jinfeng; YUAN Changzhou

doi:10.19799/j.cnki.2095-4239.2026.0172

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Fabrication of zinc-based conductive organic framework anode for high-energy-density lithium-ion capacitors

Special Issue of Key Materials and Devices of Supercapacitors | 更新时间：2026-07-01

- Fabrication of zinc-based conductive organic framework anode for high-energy-density lithium-ion capacitors
- Energy Storage Science and Technology Vol. 15, Issue 5, Pages: 1651-1659(2026)
- 作者机构：
  
  1.济南大学，山东济南 250022
  2.炭材料山西省重点实验室，山西太原 030001
- 作者简介：
- 基金信息：
- DOI：10.19799/j.cnki.2095-4239.2026.0172
  CLC： TK 02
- Received：27 February 2026，
  
  Revised：2026-03-26，
  
  Published：28 May 2026
- 稿件说明：
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张英阔, 贾佳乐, 刘婵娟, 等. 锌基导电有机框架化合物负极用于高比能锂离子电容器的构筑[J]. 储能科学与技术, 2026, 15(5): 1651-1659.

ZHANG Yingkuo, JIA Jiale, LIU Chanjuan, et al. Fabrication of zinc-based conductive organic framework anode for high-energy-density lithium-ion capacitors[J]. Energy Storage Science and Technology, 2026, 15(5): 1651-1659.
张英阔, 贾佳乐, 刘婵娟, 等. 锌基导电有机框架化合物负极用于高比能锂离子电容器的构筑[J]. 储能科学与技术, 2026, 15(5): 1651-1659. DOI： 10.19799/j.cnki.2095-4239.2026.0172.

ZHANG Yingkuo, JIA Jiale, LIU Chanjuan, et al. Fabrication of zinc-based conductive organic framework anode for high-energy-density lithium-ion capacitors[J]. Energy Storage Science and Technology, 2026, 15(5): 1651-1659. DOI： 10.19799/j.cnki.2095-4239.2026.0172.

摘要

锂离子电容器（lithium-ion capacitor，LIC）作为一种新兴的储能器件，具有超级电容器高功率密度与电池高能量密度的核心优势，可在快速充放电的同时实现高能量储存，在电动汽车、便携式电子设备和电网储能等多个领域具有广

阔应用前景。然而，LIC的发展仍受到正负极容量与动力学不匹配的限制，导致其倍率及循环稳定性欠佳，影响进一步应用。因此，研发新型、具有优异动力学性能的负极材料，成为突破高性能LIC发展瓶颈的关键所在。本工作通过水热法制备导电金属有机框架（metal-organic framework，MOF）材料，Zn

（HHTP）

（HHTP=2

11-hexahydroxytriphenylene），并系统研究了其作为LIC负极的电化学性能。Zn

（HHTP）

具有六边形孔状蜂窝结构，HHTP的扩展共轭结构允许平面内d-π键合和平面外π-π键合，赋予其良好的电子导电性。此外，其丰富的孔道结构可有效促进Li

的嵌入与脱出，使Zn

（HHTP）

表现出快速离子扩散和电子转移特性。电化学测试显示，Zn

（HHTP）

作为LIC负极表现出了良好的倍率和循环稳定性，在5 A/g的高功率下，其容量能保持在213.7 mAh/g，在1.0 A/g下经500次循环后，仍可保持约325 mAh/g的放电比容量。循环50次后电极的XPS分析证明，除Zn

（HHTP）

的层间及蜂窝状孔道外，有机配体也是重要的储锂活性位点。以Zn

（HHTP）

作为负极、活性炭作为正极，构筑的LIC器件能达到约104.8 Wh/kg的能量密度（400 W/kg），并且在2 kW/kg的高功率密度下其能量密度仍能达到约68 Wh/kg。该研究为导电MOF在电化学储能领域的拓展应用提供了新的思路和技术支撑。

Abstract

Lithium-ion capacitors (LICs) have emerged as advanced energy storage devices that integrate the high power of supercapacitors and the high energy of lithium-ion batteries

making them highly promising for critical applications such as electric vehicles

portable electronics

and grid-scale energy storage systems. However

the practical deployment and large-scale commercialization of LICs remain hindered by the capacity and kinetic mismatch between the anode and cathode

which leads to poor rate performance and insufficient cycling stability. Therefore

the exploration of novel anode materials with superior kinetic performance and excellent structural stability has become an urgent pursuit for the development of high-performance LICs. Herein

a conductive metal-organic framework (MOF)

namely Zn

(HHTP)

(HHTP = 2

11-hexahydroxytriphenylene)

was synthesized

via

a facile hydrothermal method

and its electrochemical performance as an LIC anode was systematically investigated. The Zn

ions form coordination bonds with HHTP ligands

constructing a hexagonal lattice that arranges along the

-axis to form a porous honeycomb-like structure. Effective orbital overlap between Zn

and the ligands endows the material with good electronic conductivity. In addition

the abundant porous architecture facilitates the intercalation and deintercalation of Li

ions

thereby imparting Zn

(HHTP)

with fast ion diffusion and electron transfer characteristics. Electrochemical tests demonstrated that Zn

(HHTP)

exhibits excellent rate capability and cycling stability. Specifically

it delivers a specific capacity of 213.7 mAh/g even at a high rate of 5 A/g. Moreover

after 500 cycles at 1 A/g

it retains a capacity of about 325 mAh/g. X-ray photoelectron spectroscopy analysis of the electrode after 50 cycles demonstrated that

in addition to the interlayers and honeycomb pores of Zn

(HHTP)

organic ligands also serve as important active sites for lithium storage. The LIC device assembled with a Zn

(HHTP)

anode and an activated carbon (AC) cathode achieves a high energy density of 104.8 Wh/kg at 400 W/kg and still maintains 68 Wh/kg even at a high power density of 2 kW/kg. This work provides new insights and technical support for the broader application of conductive MOFs in electrochemical energy storage.

关键词

Keywords

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