Rapid Charging Battery With Dual Current Transfer Paths
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Solution Overview
Problem
Mobile terminals, such as smartphones, face the challenge of lengthy charging times, which limits their continuous usage, and existing charging systems fail to provide rapid and convenient power replenishment in urban settings.
Innovation Solution
A charging system incorporating a rapid charging battery compatible with both high current charging standards for quick power transfer and lower current standards for prolonged battery life, utilizing lithium-ion secondary battery technology from hybrid electric vehicles, along with a server for user authentication and billing, and a power transfer device for efficient energy distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high current charging is used to charge the battery quickly, then charging speed is improved, but battery life and performance are degraded
Solution Approach 1:
The charging battery includes a first power transfer unit for rapid charging at high current and a second power transfer unit for normal power transfer at lower current. The system dynamically switches between these units based on charging needs, allowing the charging battery to accept high current for fast charging while delivering power at controlled rates to protect the load battery from degradation
Solution Approach 2:
The charging battery acts as an intermediary device between the power outlet and the load battery. It receives power at high current through the first power transfer unit, stores it temporarily, then releases it at controlled current through the second power transfer unit, thereby protecting the load battery from the harmful effects of high current charging
2Duration of action of moving object
If the battery capacity is increased to extend usage time, then duration of action is improved, but charging time becomes excessively long
Solution Approach 1:
The power storage function is segmented into two separate batteries: a charging battery optimized for rapid charging with high current acceptance capability, and a load battery that provides extended usage time. This segmentation allows each battery to be optimized for its specific function, eliminating the trade-off between capacity and charging time
Solution Approach 2:
The system changes the current parameter dynamically by using the first power transfer unit for high current rapid charging of the charging battery, then using the second power transfer unit to deliver power at appropriate current levels to the load battery, achieving both fast recharge and extended usage
3Ease of operation
If a portable charger is used to charge the mobile terminal, then convenience is improved, but the charger itself runs out of battery
Solution Approach 1:
The charging battery is pre-charged at high current using the first power transfer unit when a power outlet is available, storing energy in advance. This preliminary rapid charging action ensures the portable charging device is ready for use with extended operational duration, eliminating the concern of the charger running out of battery
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 rapid charging of mobile terminals to a usable level within minutes, extending battery life and convenience by using a rapid charging battery that can be easily integrated into mobile devices or used separately, while preventing performance degradation through controlled current values.
Implementation Method 1
The power transfer device includes a first power transfer unit being compatible with a first charging standard
Data Source
AI summary
A charging system includes a power transfer device and a rapid charging battery. The power transfer device includes a first power transfer unit being compatible with a first charging standard specifying that the rapid charging battery is to be charged at a predetermined current value. The rapid charging battery includes a first charging unit being compatible with the first charging standard, and a second power transfer unit being compatible with a second charging standard specifying that power is to be transferred at a predetermined current value that is lower than the predetermined current value specified by the first charging standard.