Chinese Academy of Sciences: New progress in research on high specific capacitance supercapacitors

Recently, a research team led by Deng Weiqiao and Wu Zhongshuai from the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, has made significant progress in developing advanced electrode materials for high-volume supercapacitors. They successfully synthesized conductive conjugated microporous polymers with an exceptionally high specific surface area and elevated nitrogen content. The findings were recently published in "Angewandte Chemie International Edition."

Supercapacitors are widely used in hybrid electric vehicles due to their ability to store large amounts of electrical energy through the electric double-layer mechanism. To enhance the performance of these devices, it is crucial to develop electrode materials that offer both a large surface area and excellent conductivity. This has been a major challenge in the field.

The research team utilized TCNQ (7,7,8,8-tetracyano-p-dioxane) as a monomer, polymerizing it under ionic thermal conditions to create a series of covalent triazine-based frameworks. These structures exhibit high porosity, conductivity, and nitrogen content. Among the synthesized materials, one particular conjugated microporous polymer stood out, featuring a specific surface area of 3,663 m²/g and a nitrogen content of 8.13%. When used as an electrode material, this polymer delivered a remarkable specific capacitance of 383 F/g—far surpassing commercial activated carbon. Moreover, it demonstrated excellent cycling stability, making it a promising candidate for next-generation supercapacitor applications.

This breakthrough not only advances the understanding of functional porous materials but also opens new avenues for improving energy storage technologies, especially in the context of sustainable and high-performance power systems.

Lithium Battery

S/N
Project
General Parameter
1
Number of series
15S
2
Rated voltage
48V
3
End of discharge voltage
40V
4
Charging voltage
Recommend 51V (50.5V – 51.5V) for floating charge
Recommend 54V (53.5V – 54.5V) for equation charge
5
Continuous charge and discharge curren
≤100A
6
Internal resistance (battery pack)
≤100mΩ
7
Self-discharge rate
≤2%/month
8
range of working temperature
(≤95%R.H.)
0~65℃ charge
-20~65℃ discharge
9
Storage temperature range(≤95%R.H.)
-40~70℃
10
Positive and negative lead way
Fence Terminal 2P*2
11
Display screen
LED display, four physical buttons
12
Protective function
Overcharge, over discharge, short circuit, overload, over temperature, etc.
13
certificate
MSDS,ISO9001,CE,UN38.3,ROSH

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