Secondary Battery Gas Adsorption Sheet for Powder Handling and CO2 Capture
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Solution Overview
Problem
The existing gas adsorption materials for secondary batteries, typically in particulate or powdery form, face challenges with handleability and uniform distribution due to aggregation or dispersion issues, which affect their gas adsorption performance and safety.
Innovation Solution
A gas adsorption sheet comprising a heat-resistant base material with a gas adsorption layer containing binder resin and inorganic porous gas adsorbent particles, such as zeolites, which are dispersed to form a sheet structure for improved handleability and gas adsorption performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gas adsorption material is used in particulate or powdery form, then gas adsorption performance is improved, but handleability deteriorates
Solution Approach 1:
The patent combines gas adsorbent particles with a binder resin to form an integrated gas adsorption sheet. This merging of discrete particles into a cohesive sheet structure improves handleability while preserving the gas adsorption performance of the particles.
Solution Approach 2:
The patent creates a composite material by combining gas adsorbent particles (such as zeolite) with a binder resin. This composite structure allows the material to exhibit both the gas adsorption properties of the particles and the handling properties of the sheet form.
2Quantity of substance
If gas adsorption material is used in particulate or powdery form, then gas adsorption capacity is improved, but arrangement precision deteriorates
Solution Approach 1:
The patent merges gas adsorbent particles with binder resin in a controlled manner to form a sheet with uniform distribution. This ensures precise arrangement at desired sites while maintaining the total gas absorption capacity.
Solution Approach 2:
The patent enables different regions of the sheet to have different concentrations or types of gas adsorbent particles by controlling the composition during sheet formation. This allows optimization of gas absorption capacity in specific areas while maintaining overall arrangement precision.
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 sheet structure enhances the gas adsorption performance and handleability of the gas adsorbent particles, allowing for effective CO2 and CO adsorption, improving battery safety and ease of application in battery production.
Implementation Method 1
gas adsorbent particles each of which is formed of an inorganic porous material having pores, and is capable of adsorbing a gas
Data Source
AI summary
Provided is a gas adsorption sheet for a secondary battery, which contains gas adsorbent particles excellent in gas adsorption property, and allows the gas adsorption performance of the gas adsorbent particles to be sufficiently exhibited. According to one embodiment of the present invention, there is provided a gas adsorption sheet for a secondary battery, including: a heat-resistant base material; and a gas adsorption layer arranged on at least one surface of the heat-resistant base material, wherein the gas adsorption layer contains: a binder resin; and gas adsorbent particles each of which is formed of an inorganic porous material having pores, and is capable of adsorbing a gas.