Jump Starter Battery Assembly for Higher Conductivity Output
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Solution Overview
Problem
Existing portable vehicle jump starting devices face challenges in maximizing conductivity between the lithium ion battery pack and the vehicle battery, which is crucial for successful jump-starts, especially for big engines, as both power and conductivity are essential but often not adequately addressed in current designs.
Innovation Solution
A rechargeable lithium ion battery assembly with enhanced conductivity features, including increased wire gauge, optimized cable connections, and a smart switch interface with relays and diode connections, is integrated into a jump starting device to improve conductivity and power delivery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard wire gauge and cable connections are used in the battery assembly, then the device complexity is reduced and manufacturing is easier, but the electrical conductivity and power delivery capability are insufficient for jump-starting big engines
Solution Approach 1:
The patent changes the wire gauge parameter from standard to larger (thicker) conductors, and modifies the connection geometry by rolling cables around tabs and using multiple attachment points. These parameter changes increase the cross-sectional area and improve electrical conductivity without fundamentally changing the battery assembly structure, thereby resolving the contradiction between reliability and device complexity.
2Power
If larger wire gauge and optimized cable connections are implemented, then the electrical conductivity increases by approximately 20%, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The patent performs preliminary actions by pre-rolling the cables around the tabs and pre-positioning the connection points before final assembly. This allows the complex conductivity-enhancing features to be integrated into the manufacturing process flow without requiring additional complex steps, thereby improving power delivery while maintaining reasonable ease of manufacture.
3Reliability
If the positive battery cable is rolled up in the metal sheet and connected to the positive terminal tab, then the conductivity is maximized, but the assembly time and manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by concentrating the conductivity enhancement efforts at the critical connection points (tabs and cable connections) rather than uniformly throughout the entire battery assembly. The cable rolling and multi-point connection are applied locally where current density is highest, maximizing conductivity improvement while limiting the scope of increased manufacturing precision requirements to only the necessary connection areas.
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 solution significantly increases conductivity by approximately 20% compared to standard designs, enhancing the device's ability to jump-start vehicles by ensuring both sufficient power and efficient energy transfer.
Implementation Method 1
a positive battery conductor connected to the positive terminal tab of the rechargeable lithium ion battery... the positive battery cable is rolled up in the metal sheet
Implementation Method 2
a negative battery conductor connected to the negative terminal tab of the rechargeable lithium ion battery, and the negative battery conductor being electrically connected to the negative cable
Data Source
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AI summary
A rechargeable battery assembly for use in a rechargeable jump starting device having a positive cable with a positive battery clamp and a negative cable with a negative battery clamp, the rechargeable battery assembly comprising a rechargeable battery, a positive terminal conductor bar and a negative terminal conductor bar, wherein the rechargeable battery assembly is configured to maximize electrical conductivity from the rechargeable battery to a battery being jump started.