Cell-Level Battery Equalization and Thermal Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Battery performance is limited by the weakest cell, leading to premature obsolescence due to uneven charging and discharging, as well as overheating, which results in reduced capacity and increased frequency of charging, causing batteries to become non-functional prematurely.
Innovation Solution
A battery optimization and equalization management system that monitors and controls each cell's charge and discharge, preventing overcharging, under-discharging, and overheating, ensuring balanced performance and extending battery life by maintaining optimal cell conditions through equalization and temperature management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If all cells are charged simultaneously at the same rate, then charging process is simple and fast, but the weakest cell reaches maximum capacity first causing the entire battery to stop charging prematurely
Solution Approach 1:
The patent segments the battery charging process into individual cell-level control units. Each cell is monitored and charged independently through separate charging circuits, allowing the charging system to manage each cell's state of charge separately rather than as a single group, thus preventing the weakest cell from limiting the entire battery's charging capacity
Solution Approach 2:
The patent implements dynamic charging control where charging currents are adjusted in real-time based on each cell's state of charge, temperature, and health status. The system continuously monitors cell voltages and automatically balances charging currents to maintain optimal charging rates for each individual cell, enabling the battery to charge to higher overall capacities without risking cell damage
2Ease of operation
If all cells discharge simultaneously, then discharging process is simple, but the weakest cell depletes first causing the entire battery to become non-functional
Solution Approach 1:
The patent divides the battery discharging system into individually controllable cell units with separate monitoring and control circuits. This segmentation allows the system to manage discharge currents at the cell level, preventing any single weak cell from causing complete battery failure and extending the overall discharge duration
Solution Approach 2:
The patent employs continuous feedback monitoring of each cell's voltage, current, and temperature during discharge. The control system uses this real-time data to dynamically adjust discharge currents, preventing any cell from dropping below its minimum voltage threshold and thereby extending the battery's operational life by utilizing the full capacity of stronger cells
3Quantity of substance
If charging continues until all cells reach maximum capacity, then energy storage is maximized, but overheating and overcharging risks increase
Solution Approach 1:
The patent implements preliminary protective actions by continuously monitoring each cell's temperature and voltage before reaching critical thresholds. The system preemptively reduces or stops charging currents to individual cells based on predicted thermal conditions and state of charge, preventing overheating and overcharging before they occur while still maximizing safe energy storage
Solution Approach 2:
The patent applies differentiated charging control to individual cells based on their specific thermal and electrical characteristics. Each cell receives customized charging parameters including current limits, temperature thresholds, and voltage cutoffs tailored to its condition, allowing the system to maximize energy storage in healthy cells while providing enhanced protection to cells showing signs of stress or degradation
Data Source
AI summary
An intelligent battery optimization management and equalization system that also monitors all cells within a battery. The system will ensure all cells are charged to maximum capacity, discharges the full capacity of each cell, perform equalization of charges between all the cells, manages and monitors each cell within a battery pack.