Battery Selection Priorities for Even Degradation in Swap Stations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Batteries used in battery swapping stations (BSS) experience uneven deterioration due to varying usage patterns, leading to reduced efficiency and user experience, with batteries in hot zones deteriorating from active use and those in cold zones deteriorating during standby.
Innovation Solution
A battery management apparatus that determines a target battery by considering performance indices such as deterioration, relative usage amount, and stress score, setting priorities based on these factors to recommend optimal batteries for replacement, thereby balancing degradation and improving utilization efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If batteries are actively replaced in hot zones to meet user demand, then user service level is improved, but battery deterioration accelerates
Solution Approach 1:
The system applies different management strategies to different zones (hot zones with high replacement demand vs. cold zones with low demand) and different battery states (SOC levels, deterioration degrees). By evaluating individual battery characteristics and assigning them to specific zones based on their condition, the system optimizes both user service in hot zones and battery longevity in cold zones.
Solution Approach 2:
The system dynamically changes battery assignment decisions based on multiple parameters including SOC (state of charge), deterioration degree, usage amount, and zone characteristics. By continuously monitoring and reassigning batteries based on these parameter changes, the system balances service quality with battery preservation.
2Productivity
If batteries are kept in cold zones for extended standby, then battery utilization efficiency decreases, but user service demand is reduced
Solution Approach 1:
The system dynamically reassigns batteries from cold zones to hot zones based on real-time conditions. When a battery in a cold zone reaches appropriate SOC levels and its deterioration is within acceptable ranges, it is automatically transferred to hot zones for active use, thereby improving utilization efficiency while responding to user service demands.
Solution Approach 2:
The system continuously monitors battery status (SOC, deterioration, usage amount) and uses this feedback to make dynamic assignment decisions. This feedback mechanism ensures that batteries are optimally positioned in hot or cold zones based on their current state, maximizing both utilization efficiency and service quality.
3Speed
If rapid charging is applied to reduce charging time, then charging speed is improved, but battery deterioration accelerates
Solution Approach 1:
The system performs preliminary evaluation of battery conditions (SOC, deterioration degree, usage amount) before assigning batteries to charging schedules. By pre-assessing battery health status and assigning lower priority to batteries showing signs of deterioration, the system reduces the frequency of rapid charging cycles, thereby slowing deterioration while still meeting overall charging demands.
Data Source
AI summary
A battery management apparatus according to an embodiment of the present disclosure includes a communication unit configured to receive battery information for a plurality of batteries, a priority setting unit configured to determine an index value of a performance index preset for the plurality of batteries based on the battery information and set a priority for the plurality of batteries based on the determined index value, and a battery determining unit configured to determine a target battery among the plurality of batteries based on the battery information and the priority, and provide information about the determined target battery.