Electropolymerized Siloxane Electrolytes for 3D Battery Conformal Coating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional solid-state electrolytes in batteries face challenges such as modest ionic conductivity, brittleness, and difficulty in conformal deposition on complex 3D battery architectures, limiting their performance and usability in next-generation 3D battery designs.
Innovation Solution
Electropolymerization of vinyl-containing siloxane monomers to form ultrathin, conformal, and electronically insulating polymer coatings on conductive substrates, which can be used as both separators and solid-state electrolytes, enhancing ionic conductivity and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional solid-state electrolytes are used in 3D battery architectures, then ionic conductivity is improved, but fabrication difficulty increases due to complex geometry and non-line-of-sight conditions
Solution Approach 1:
The patent replaces mechanical/physical deposition methods (sputtering, CVD, PVD) with electrochemical deposition. The electropolymerization process uses electrical current to drive monomer polymerization directly on the electrode surfaces, enabling conformal coating of complex 3D architectures without line-of-sight constraints. This substitution of deposition mechanism resolves the contradiction between achieving good ionic conductivity and ease of fabrication on complex geometries.
Solution Approach 2:
The electropolymerization process is self-limiting and automatically conforms to the electrode geometry. The polymerization occurs only where electrical current flows, naturally adapting to the 3D architecture without requiring masks, alignment steps, or complex positioning. The system self-adjusts to the substrate shape, eliminating the need for external guidance structures and simplifying fabrication.
2Reliability
If ultrathin polymer coatings are deposited to minimize power limitations, then ionic conductivity is improved, but coating uniformity becomes difficult to achieve on complex geometries
Solution Approach 1:
The patent replaces physical vapor deposition or solution casting with electrochemical polymerization. The electropolymerization process uses electrical potential to control monomer deposition rate and distribution, ensuring uniform ultrathin coatings even on complex 3D geometries. The electrical field penetrates all surfaces equally, providing consistent coating thickness that physical methods cannot achieve on non-planar substrates.
Solution Approach 2:
The patent controls coating thickness and uniformity by adjusting electrochemical parameters such as applied potential, current density, and monomer concentration. By changing these parameters, the process can be tuned to deposit ultrathin uniform coatings (tens of nanometers) on complex geometries, achieving both high ionic conductivity and manufacturing precision simultaneously.
3Manufacturing precision
If conventional deposition methods are used on planar substrates, then coating quality is good, but adaptability to 3D architectures is poor
Solution Approach 1:
The patent replaces line-of-sight physical deposition methods with electrochemical polymerization that operates under non-line-of-sight conditions. The electrical field and ion transport in electrolyte solutions can penetrate and reach all surfaces of complex 3D architectures, enabling high-quality conformal coatings on geometries that are inaccessible to conventional vapor deposition or spray methods.
Solution Approach 2:
The electropolymerization process serves multiple functions: it deposits the polymer coating, ensures conformal coverage, controls thickness, and adheres the coating to the substrate—all in a single step. This multi-functional approach provides both high coating quality and universal adaptability to any conductive substrate geometry, from planar to complex 3D architectures.
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 method enables the creation of scalable, pinhole-free, and chemically stable polymer electrolytes that minimize power limitations due to modest ionic conductivity, suitable for complex 3D battery architectures, improving battery performance and safety.
Implementation Method 1
Electropolymerization of vinyl-containing siloxane monomers to form ultrathin, conformal, and electronically insulating polymer coatings on conductive substrates
Implementation Method 2
Cation-conductive conformal ultrathin polymer electrolytes
Data Source
AI summary
A composite having an electrically conductive substrate and a polymer derived from a vinyl-containing siloxane monomer coating on the substrate. A method of electropolymerizing a vinyl-containing siloxane monomer to form a coating on an electrically conductive substrate.