Formic Acid Hydrogen Generator for Tank-Free Fuel Cell Power
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Solution Overview
Problem
Current electrical automobile technologies, such as Li-battery technology and hydrogen fuel cells, face limitations including long recharging times and safety concerns related to hydrogen gas storage and transportation.
Innovation Solution
A portable energy generation device that converts formic acid into hydrogen, eliminating the need for hydrogen tanks by using a reaction chamber with catalysts and heat to decompose formic acid into hydrogen and carbon dioxide, which is then used to power a fuel cell, thereby generating electricity and reducing the need for hydrogen storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If hydrogen fuel cell technology is used, then power capacity and driving range are improved, but safety concerns arise due to high-pressure hydrogen storage requirements
Solution Approach 1:
The patent changes the physical state and storage parameters of hydrogen from high-pressure gas (600 bar) to liquid formic acid at atmospheric pressure. This parameter transformation eliminates the need for high-pressure tanks while maintaining hydrogen supply for fuel cells, thus resolving the safety contradiction.
Solution Approach 2:
Formic acid serves as an intermediary substance that carries hydrogen in liquid form. Instead of storing and transporting hydrogen directly in high-pressure tanks, the system uses formic acid as a safe mediator that can be stored at atmospheric pressure and converted to hydrogen on-demand through catalytic decomposition.
2Reliability
If Li-battery technology is used, then safety is improved compared to hydrogen storage, but recharging time becomes too long for practical use
Solution Approach 1:
The system performs preliminary action by pre-storing hydrogen in the form of liquid formic acid rather than requiring on-site recharging. The formic acid is prepared in advance and can be quickly converted to hydrogen through catalytic decomposition, enabling instant power availability without long recharging waits.
Solution Approach 2:
The patent replaces the electrochemical charging process of Li-batteries with a chemical decomposition process of formic acid. Instead of slowly recharging batteries through electrical current, the system uses catalytic decomposition which can rapidly generate hydrogen for the fuel cell, dramatically reducing the refueling time.
3Power
If hydrogen is stored in high-pressure tanks, then power capacity is maintained, but the complexity of storage and transportation systems increases
Solution Approach 1:
The patent simplifies the storage system by changing the physical parameters from high-pressure gas storage to liquid storage at atmospheric pressure. This eliminates the need for complex high-pressure tanks, pressure regulators, and safety valves, replacing them with simple liquid storage containers similar to conventional fuel tanks.
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
This solution provides a clean, renewable, and safe energy source with a significantly longer driving range and instant power availability, overcoming the limitations of existing technologies by using formic acid as a hydrogen carrier, which is non-flammable and environmentally friendly.
Implementation Method 1
a reaction chamber with catalysts and heat to decompose formic acid into hydrogen and carbon dioxide
Implementation Method 2
the reaction chamber is capable of receiving heat generated by operation of the fuel cell or from another heat source and promoting the formic acid to convert to hydrogen and carbon dioxide
Implementation Method 3
a fuel cell that generates at least electricity and heat as by-products
Data Source
AI summary
The present disclosure relates generally to portable energy generation devices and methods. The devices are designed to covert formic acid into released hydrogen, alleviating the need for a hydrogen tank as a hydrogen source for fuel cell power. In particular, an electricity generation device for powering a battery comprising a formic acid reservoir containing a liquid consisting of formic acid; a reaction chamber capable of using a catalyst and heat to convert the formic acid to hydrogen and carbon dioxide; a fuel cell that generates electricity; a delivery system for moving converted hydrogen into the fuel cell; and a battery powered by electricity generated by the fuel cell is provided.