Thiazole Electrolyte Composition for Secondary Battery Cyclability
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Solution Overview
Problem
Existing secondary batteries do not achieve sufficient battery characteristics, indicating a need for improvement in their performance.
Innovation Solution
Incorporating a thiazole-type compound, specifically represented by Formulas (1) and (2), into the electrolytic solution of secondary batteries, which forms a dense and electrochemically stable film on the negative electrode, thereby suppressing decomposition reactions and maintaining discharge capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electrolytic solutions are used, then the battery structure is simple, but the battery characteristic is insufficient
Solution Approach 1:
The patent employs composite electrolytic solution formulation by combining multiple thiazole-type compounds (Formula 1 and Formula 2) with specific functional groups. This composite approach creates synergistic effects that improve battery characteristics including discharge capacity and cyclability, while the structured combination maintains manageable complexity through targeted molecular design.
2Duration of action of moving object
If thiazole-type compounds are added to improve battery characteristics, then discharge capacity is maintained, but electrolytic solution complexity increases
Solution Approach 1:
The patent systematically varies molecular parameters of thiazole-type compounds including substituent groups (R1-R15), molecular weight, and functional group configurations. By optimizing these parameters within specific ranges, the invention achieves improved discharge capacity and cyclability while controlling electrolytic solution complexity through parameter optimization rather than indiscriminate component addition.
3Duration of action of stationary object
If conventional electrolytes are used, then manufacturing is simple, but cyclability deteriorates after repeated charging and discharging
Solution Approach 1:
The thiazole-type compounds in the electrolytic solution perform preliminary protective action by forming stable interface films on electrode surfaces before degradation occurs. This preliminary film formation prevents subsequent decomposition reactions during repeated charging and discharging, thereby improving cyclability. The manufacturing process remains relatively simple as it involves standard electrolyte preparation procedures.
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 thiazole-type compounds in the electrolytic solution enhances the battery characteristics of secondary batteries by maintaining discharge capacity and improving cyclability, even after repeated charging and discharging.
Implementation Method 1
forms a dense and electrochemically stable film on the negative electrode
Implementation Method 2
electrochemically stable film
Implementation Method 3
suppressing decomposition reactions and maintaining discharge capacity
Data Source
AI summary
A secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The electrolytic solution includes a thiazole-type compound. The thiazole-type compound includes a compound represented by Formula (1), a compound represented by Formula (2), or both.