Rechargeable Battery Exchange Method for Assembled Battery Rebuilding
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Solution Overview
Problem
Existing methods for rebuilding assembled batteries with multiple rechargeable cells are burdensome due to the need for frequent SOC and memory effect checks, requiring adjustments and replacements to ensure full capacity usage, leading to inefficiencies in battery exchange processes.
Innovation Solution
A method involving full discharge of rechargeable batteries, followed by storage to reduce memory effect accumulation, allowing for the combination of reusable batteries to rebuild an assembled battery with sufficient capacity, using either stored reusable batteries or fresh ones to match characteristics and extend battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If replacement rechargeable batteries are used to rebuild an assembled battery, then the capacity of the assembled battery can be used to full extent, but the rechargeable batteries that are not defective would be wasted
Solution Approach 1:
The patent recovers and reuses non-defective rechargeable batteries from failed assembled batteries. Instead of discarding the entire assembled battery when one cell fails, the method extracts and reuses the functioning batteries, thereby reducing waste and improving resource efficiency while maintaining full capacity utilization.
2Reliability
If the entire assembled battery is exchanged with a new one, then the system anomaly is resolved, but the rechargeable batteries that are not defective would be wasted
Solution Approach 1:
Instead of replacing the entire assembled battery, the patent recovers and reuses the non-defective rechargeable batteries from the failed assembly. This approach maintains system reliability by ensuring all batteries in the rebuilt assembly are in good condition while avoiding the waste of functional components.
3Productivity
If SOC adjustment is performed on replacement and non-exchanged rechargeable batteries, then the capacity of the assembled battery can be used to full extent, but the rebuilding process becomes burdensome
Solution Approach 1:
The patent uses fresh rechargeable batteries as disposable replacement units that come pre-charged to appropriate SOC levels. This eliminates the need for complex SOC adjustment procedures during rebuilding, significantly reducing process complexity while maintaining full capacity utilization of the assembled battery.
4Productivity
If memory effect checks are performed on all rechargeable batteries, then the rebuilt assembled battery has sufficient capacity, but the rebuilding process becomes burdensome
Solution Approach 1:
The patent employs fresh rechargeable batteries as replacement units that have not accumulated memory effect. This eliminates the need for time-consuming memory effect checks and reduction processes, significantly simplifying the rebuilding procedure while ensuring the assembled battery operates at full capacity.
5Productivity
If replacement rechargeable batteries are charged to lower SOC than non-exchanged batteries, then the capacity of the assembled battery can be used to full extent, but the rebuilding process becomes burdensome
Solution Approach 1:
The patent uses fresh rechargeable batteries that come pre-charged to appropriate SOC levels, eliminating the need for manual SOC adjustment during the rebuilding process. This maintains full capacity utilization of the assembled battery while making the rebuilding operation simple and straightforward.
Data Source
AI summary
A rechargeable battery exchanging method which exchanges rechargeable batteries of an assembled battery to rebuild new assembled battery. The method includes discharging a rechargeable battery derived from an assembled battery until the rechargeable battery becomes a fully discharged state and storing the rechargeable battery in a storage region for a predetermined period of time or longer from when the rechargeable battery becomes the fully discharged state to prepare a reusable rechargeable battery. The method further includes rebuilding a regenerated assembled battery by combining the stored reusable rechargeable battery with a stored reusable rechargeable battery derived from other assembled batteries or combining the stored reusable rechargeable battery with a fresh rechargeable battery.