Radialene Electroactive Material for Battery Energy Density
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Solution Overview
Problem
Current rechargeable batteries, particularly lithium-ion batteries, face challenges in achieving high energy density, stability, and reversibility, especially with organic electroactive materials, which often suffer from low electrical properties and instability.
Innovation Solution
Incorporating radialene compounds with specific electron-withdrawing substituents as electroactive materials in the electrodes of electrochemical cells, allowing for improved energy density and stability through their redox behavior, with the compounds existing as alkali metal salts in a solid or gel-like form, enhancing their performance in rechargeable batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If organic electroactive materials are used in batteries, then light weight, low-temperature processability, and environmental tolerability are improved, but electrical properties, energy density, reversibility, and stability deteriorate
Solution Approach 1:
The patent employs radialene compounds as organic electroactive materials that combine the advantages of organic materials (light weight, environmental tolerability) with improved electrical properties and stability. The specific molecular structure of radialene compounds creates a composite-like effect at the molecular level, achieving both low weight and high reliability simultaneously
Solution Approach 2:
The patent modifies the molecular parameters of electroactive materials by using radialene compounds with specific structural characteristics. This changes the fundamental parameters of the material (molecular weight, electron mobility, redox potential) to achieve both light weight and improved electrical properties and stability
2Reliability
If high molecular weight compounds are used to improve stability, then reversibility and energy density deteriorate
Solution Approach 1:
The patent optimizes the molecular weight parameter by using radialene compounds with specific molecular weights that are neither too high nor too low. This parameter optimization allows the material to exhibit both high stability and high energy density with good reversibility, resolving the contradiction between molecular weight and performance
3Productivity
If high number of electrons per molecule are exchanged to improve energy density, then reversibility and stability deteriorate
Solution Approach 1:
The patent changes the redox potential parameter and electron exchange characteristics by using radialene compounds. These compounds are designed to exchange a high number of electrons per molecule while maintaining excellent reversibility and stability, achieving high energy density without sacrificing reliability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The use of radialene compounds in battery electrodes results in improved energy density and stability, enabling reversible redox reactions, thus enhancing the performance and longevity of rechargeable batteries.
Implementation Method 1
at least one of the first electroactive material and the second electroactive material comprises a radialene compound
Implementation Method 2
an electrolyte which is in contact with both electrodes
Data Source
AI summary
The present invention relates to a battery comprising at least one electrochemical cell comprising a first electrode, a second electrode, a first electroactive material, a second electroactive material and an electrolyte which is in contact with both electrodes, wherein at least one of the first electroactive material and the second electroactive material comprises a radialene compound; to an electroactive material as well as to a compound therefore.