Hybrid NiMH Li-Ion Ultracapacitor Battery for Engine Starting
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Solution Overview
Problem
Existing lead-acid batteries for motor vehicles are not fully hermetically closed, releasing toxic substances, and other types like NiMH, Li-Ion, and Li-Pol cells struggle with high current delivery and low temperature performance, while ultracapacitors lack mechanical durability and high capacity.
Innovation Solution
A new type of accumulator battery is created through a serial-parallel connection of leadless NiMH, Li-Ion, Li-Pol cells, and ultracapacitors, ensuring chemical and mechanical resistance, high current delivery, and operation across a wide temperature range, eliminating the use of toxic substances and enhancing energy density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If lead-acid batteries are used, then high current delivery is achieved, but toxic substances are released to the environment
Solution Approach 1:
The patent removes the lead-acid battery system entirely and extracts only the necessary function (high current delivery for engine starting) to be performed by alternative battery technologies. This eliminates the source of toxic substance release while maintaining the core functionality.
Solution Approach 2:
The patent changes the chemical composition parameters of the battery system by transitioning from lead-acid chemistry to nickel-metal hydride or lithium-ion chemistry. This parameter change eliminates toxic substance release while achieving comparable or superior performance through different material properties.
2Object-generated harmful factors
If NiMH or Li-Ion cells are used, then environmental friendliness is improved, but high current delivery capability deteriorates
Solution Approach 1:
The patent combines multiple battery cell types (NiMH and Li-Ion) in a hybrid configuration to merge their advantages. The parallel connection of different chemistries allows the system to deliver high currents while maintaining environmental friendliness, as each cell type contributes its strengths to the overall performance.
3Object-generated harmful factors
If NiMH or Li-Ion cells are used, then environmental friendliness is improved, but low temperature performance deteriorates
Solution Approach 1:
The patent merges multiple battery chemistries (NiMH and Li-Ion) to create a hybrid system that operates effectively across a wide temperature range. Each chemistry contributes its temperature tolerance characteristics, allowing the combined system to function reliably in both low and high temperature environments while maintaining environmental friendliness.
4Power
If ultracapacitors are used, then high current delivery is improved, but mechanical durability and capacity deteriorate
Solution Approach 1:
The patent combines ultracapacitors with NiMH and Li-Ion batteries in a hybrid energy storage system. The ultracapacitors handle high current pulses and transient loads, while the battery cells provide sustained energy delivery and mechanical durability. This merging allows the system to achieve both high current capability and long-term reliability.
Solution Approach 2:
The patent segments the energy storage function into different components with specialized roles: ultracapacitors for high-power transient delivery, and NiMH/Li-Ion batteries for sustained energy supply. This functional segmentation allows each component to operate within its optimal performance range, achieving both high current delivery and mechanical durability.
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 new battery provides high current capacity, is environmentally friendly, operates effectively from -40°C to 60°C, and is more resistant to damage and vibrations, offering improved energy density and performance compared to traditional lead batteries.
Implementation Method 1
based on electrochemical reaction of secondary lead-acid cell (hereinafter called 'lead battery')
Implementation Method 2
In principle, the ultracapacitor is an electrolytic condenser manufactured with special technology, with goal to reach high capacity of thousands of farads
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
Accumulator battery, the processing method and its use, especially for combustion engines and motor vehicles, consist in serial-parallel connection of at least one or more NiMH - Nickel-metal hydride cells and or Li-Ion Lithium-Ion cells and or Li-Pol - Lithium polymer cells and ultracapacitors.