Core-Shell Supercapacitor Battery Structure for Higher Power Density
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Solution Overview
Problem
Current electric-powered vehicles rely on expensive batteries that lack sufficient power for long-distance travel, necessitating a more cost-effective and powerful energy storage solution.
Innovation Solution
Integration of supercapacitors and batteries in a core-shell configuration, utilizing graphene-metal oxide composite materials in the supercapacitor electrodes to prevent graphite formation, and a hexagonal metal shell design to minimize gaps and enhance energy storage density.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If current power batteries are used in E-powered vehicles, then the vehicles can operate for extended periods, but the power output is insufficient for long-distance travel and the cost is high
Solution Approach 1:
The patent combines a supercapacitor and a battery into a single integrated energy storage device. The supercapacitor provides high power output for acceleration and instantaneous energy demands, while the battery provides sustained energy for long-duration operation. This merging resolves the contradiction by delivering both high power and extended operational duration simultaneously.
Solution Approach 2:
The patent uses composite electrode materials in the supercapacitor, specifically incorporating graphene and metal oxides. These composite materials enhance the supercapacitor's power density and energy storage capacity, enabling it to contribute more effectively to both power output and operational duration when integrated with the battery.
2Duration of action of moving object
If current power batteries are used in E-powered vehicles, then the vehicles can achieve extended operational duration, but the cost increases significantly
Solution Approach 1:
The integrated supercapacitor-battery device allows for optimized component sizing. The supercapacitor handles peak power demands, reducing the overall capacity requirement of the battery system. This merging enables achieving extended operational duration at lower total cost by leveraging the complementary strengths of both energy storage technologies.
Solution Approach 2:
The patent modifies the electrical parameters and configuration of the integrated device, including the connection topology (series/parallel arrangements) and capacity ratios between supercapacitor and battery. These parameter optimizations enable cost-effective design that achieves target operational duration without requiring oversized expensive battery systems.
3Device complexity
If a battery surrounds a supercapacitor in an integrated configuration, then space utilization improves and manufacturing complexity reduces, but thermal management and electrical isolation become more challenging
Solution Approach 1:
The patent implements a nested configuration where the supercapacitor is placed inside the battery housing or vice versa. This nesting achieves compact space utilization and simplified external structure. Thermal management is addressed through shared cooling channels designed into the nested structure, while electrical isolation is maintained through insulating barriers and separate terminal connections.
Solution Approach 2:
The patent applies different material properties and design characteristics to different regions of the integrated device. Insulating materials are placed at specific interfaces between battery and supercapacitor components to provide electrical isolation where needed. Thermal conductive paths are created in specific zones to facilitate heat dissipation from both components, addressing thermal and electrical challenges locally rather than uniformly throughout the structure.
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 configuration provides enhanced power and durability at a lower cost than traditional batteries, enabling vehicles to travel longer distances with increased energy storage capacity while avoiding undesirable graphite formation and gaps between energy storage devices.
Implementation Method 1
The battery includes a first anode, a first cathode, and an electrolyte disposed between the first anode and the first cathode
Implementation Method 2
The supercapacitor includes a second anode, a second cathode, and a separator disposed between the second anode and the second cathode
Data Source
AI summary
An energy bank includes a plurality of integrated energy storage devices including a plurality of supercapacitors, a plurality of batteries and a plurality of metal shells. Each of the integrated energy storage devices includes a supercapacitor, a battery surrounding the supercapacitor and a metal shell surrounding the battery. The battery forms a shell around an exterior surface of the supercapacitor. The battery includes a first anode, a first cathode, and an electrolyte disposed between the first anode and the first cathode. The supercapacitor includes a second anode, a second cathode, and a separator disposed between the second anode and the second cathode.