Hydrogen Power Storage Unit for Electric Vehicle Charging
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Solution Overview
Problem
Hydrogen fuel cell vehicles face challenges due to the lack of widespread refueling infrastructure and inefficiencies in technology, making them less viable compared to electric vehicles, despite their potential for storing excess renewable energy.
Innovation Solution
A hydrogen-based power storage unit device that includes an electrolyzer to separate water into hydrogen and oxygen, a fuel cell to generate electricity, and a power conditioning unit to charge an electric vehicle's battery, eliminating the need for hydrogen refueling infrastructure by using renewable energy sources and allowing charging with distilled water.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If hydrogen fuel cell vehicles use tanks filled with hydrogen for power delivery, then traveling distance capacity and refilling speed are improved, but infrastructure cost and technology efficiency deteriorate
Solution Approach 1:
The system segments the hydrogen storage function into two parts: a small onboard storage tank for immediate use and a portable external storage unit for refilling. This eliminates the need for widespread hydrogen refueling infrastructure while maintaining traveling distance capacity, as the portable unit can be transported and connected anywhere.
Solution Approach 2:
The portable hydrogen storage unit acts as an intermediary between the hydrogen source and the vehicle's fuel cell system. It provides a mobile refilling station that can be transported to various locations, serving as a flexible intermediate solution between centralized hydrogen stations and the vehicle's onboard storage.
2Speed
If hydrogen fuel cell vehicles use tanks filled with hydrogen for power delivery, then refilling speed is improved, but technology efficiency deteriorates
Solution Approach 1:
The system uses a small onboard hydrogen tank that is refilled partially or completely from the portable unit as needed. This allows the vehicle to maintain high refilling speed for the onboard tank while the portable unit can be gradually replenished, balancing the energy efficiency requirements with the speed advantage of hydrogen refueling.
3Adaptability or versatility
If a portable hydrogen storage unit with electrolyzer and fuel cell is used to charge electric vehicle battery, then charging flexibility and infrastructure independence are improved, but device complexity increases
Solution Approach 1:
The portable unit merges multiple functions into a single integrated system: the electrolyzer that produces hydrogen from water, the storage tank that holds the hydrogen, and the fuel cell that converts hydrogen back to electricity for charging the vehicle battery. This consolidation provides charging flexibility while managing complexity through integration rather than separate components.
Solution Approach 2:
The portable hydrogen storage unit serves multiple functions: it can charge electric vehicle batteries, provide direct power to fuel cell vehicles, and store hydrogen for later use. This multi-functionality increases adaptability across different vehicle types and charging scenarios while the modular design helps manage the inherent complexity.
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
Enables electric vehicles to be charged anywhere with a portable and efficient system, utilizing renewable energy stored as hydrogen, thus addressing infrastructure limitations and inefficiencies in hydrogen fuel cell technology.
Implementation Method 1
an electrolyzer connected to the power source adapted to separate water from the water supply into hydrogen and oxygen
Implementation Method 2
a fuel cell adapted to generate electrical power using the separated hydrogen and oxygen
Data Source
AI summary
Embodiments may include a hydrogen-based power storage unit device that provides power for electric vehicles, and other uses, without requiring hydrogen refueling infrastructure. For example, in an embodiment, an apparatus may comprise a power source, a water supply, an electrolyzer connected to the power source adapted to separate water from the water supply into hydrogen and oxygen, a fuel cell adapted to generate electrical power using the separated hydrogen and oxygen, and a power conditioning unit adapted to output a configured electrical power output.