Related Experiment Video
Updated: Feb 16, 2026
10:41
Three-electrode Coin Cell Preparation and Electrodeposition Analytics for Lithium-ion Batteries
Published on: May 22, 2018
39.0K
Bridging Energy and Power Density Gap: Multi-Redox CMP/CNT Composite as High Loading Organic Cathode for Lithium-Ion
Gulraiz Tanvir1, Kamran Amin1, Zhixiang Wei1
1CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, |University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, China.
Small Methods
|February 15, 2026
Summary
We developed a new conjugated microporous polymer (CMP) composite with carbon nanotubes (CNTs) for advanced lithium-ion batteries (LIBs). This material offers improved conductivity and stability, enhancing energy storage performance.
Area of Science:
- Materials Science
- Electrochemistry
- Polymer Chemistry
Background:
- Conjugated microporous polymers (CMPs) show potential for energy storage due to their properties.
- Limitations of CMPs in lithium-ion batteries (LIBs) include poor conductivity and degradation.
Purpose of the Study:
- To synthesize a dihydrophenazine-based CMP (TPA-DPZ) composite with carbon nanotubes (CNTs).
- To enhance the electrochemical performance of CMPs for LIB applications.
Main Methods:
- In situ polymerization technique to create TPA-DPZ@CNT 5% composite.
- Fabrication of cathodes with high active material loading (80%).
Main Results:
- The TPA-DPZ@CNT 5% cathode achieved a specific capacity of 128 mAh g-1 at 3.39 V.
- High capacity retention (68.34 mAh g-1 at 20 A g-1) and excellent cycling stability (89% after 10,000 cycles).
- High energy density (445 Wh kg-1) and power density (67 kW kg-1).
Conclusions:
- The synergistic effect of CMPs and CNTs overcomes limitations in organic electrodes for LIBs.
- The developed material demonstrates significant potential for high-performance energy storage devices.
Related Concept Videos
03:12Batteries and Fuel Cells
31.1K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
31.1K
02:54Trends in Lattice Energy: Ion Size and Charge
26.8K
An ionic compound is stable because of the electrostatic attraction between its positive and negative ions. The lattice energy of a compound is a measure of the strength of this attraction. The lattice energy (ΔHlattice) of an ionic compound is defined as the energy required to separate one mole of the solid into its component gaseous ions. For the ionic solid sodium chloride, the lattice energy is the enthalpy change of the process:
26.8K
02:58Balancing Redox Equations
62.7K
Electrochemistry is the science involved in the interconversion of electrical and chemical reactions. Such reactions are called reduction-oxidation, or redox reactions. These important reactions are defined by changes in oxidation states for one or more reactant elements and include a subset of reactions involving the transfer of electrons between reactant species. Electrochemistry as a field has evolved to yield sufficient insights on the fundamental principles of redox chemistry and multiple...
62.7K
01:12Power and Energy
2.1K
The power and energy delivered to an element are subjects of great significance in the field of electrical engineering. It is a well-known fact that a 100-watt light bulb emits more light than a 60-watt one. Therefore, power and energy calculations play a crucial role in the analysis of electrical circuits.
Power, defined as the time rate of expending or absorbing energy, is quantified in units called watts (W). The relation between power and energy is mathematically given as
Power, defined as the time rate of expending or absorbing energy, is quantified in units called watts (W). The relation between power and energy is mathematically given as
2.1K
01:17Energy and Power Signals
1.2K
In an electrical system with a resistor, voltage and current signals facilitate the measurement of power and energy across the resistor. For a continuous-time signal, the total energy over a time interval is defined as the integral of the square of the signal's magnitude over that interval. Mathematically, this is expressed as:
1.2K
00:58Energy and Power of a Wave
5.0K
The total energy associated with a wavelength is the sum of the potential energy and the kinetic energy. The average rate of energy transfer associated with a wave is called its power, which is total energy divided by the time it takes to transfer the energy. For a sinusoidal wave, energy and power are proportional to the square of both the amplitude and the angular frequency.
Waves can also be concentrated or spread out, as characterized by the intensity of the wave. Intensity is directly...
Waves can also be concentrated or spread out, as characterized by the intensity of the wave. Intensity is directly...
5.0K