Vanadium Battery Standard-State Control for Accurate OCV Measurement
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Solution Overview
Problem
Lithium-ion batteries face issues such as fire hazards and explosions, necessitating the development of safer alternatives for energy storage systems, where vanadium-based batteries offer promise but require standardized evaluation and management techniques to ensure accurate measurements and efficient charging/discharging.
Innovation Solution
A semiconductor chip assembly and method for vanadium-based batteries that sets a constant temperature and specific voltage values to enter a standard state, allowing for open circuit voltage measurements and maintaining an equilibrium state, thereby enhancing battery management and energy storage operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If lithium-ion batteries are used for energy storage, then energy storage capacity is improved, but safety deteriorates due to fire hazards and explosions
Solution Approach 1:
The patent changes the chemical composition parameters of the battery system by switching from lithium-ion chemistry to vanadium-based redox chemistry. This fundamental parameter change enables safe energy storage operations by using aqueous electrolytes with vanadium ions that eliminate fire hazards while maintaining energy storage capacity through electrochemical redox reactions
2Reliability
If vanadium-based batteries are used for energy storage, then safety is improved, but measurement accuracy deteriorates due to lack of standardized evaluation techniques
Solution Approach 1:
The patent establishes standardized measurement parameters including temperature control at 25°C, specific voltage ranges, and equilibrium state requirements. These parameter standardizations enable accurate and reproducible measurements of vanadium-based battery performance, resolving the measurement accuracy issue through defined testing conditions
Solution Approach 2:
The patent requires preliminary equilibrium state achievement before measurements are taken. The system performs preliminary charging or discharging operations to reach a stable state, then maintains this equilibrium condition during measurement. This preliminary action ensures that measurements reflect true battery characteristics rather than transient states, improving measurement accuracy
3Measurement precision
If standardized state is entered for vanadium-based batteries, then measurement accuracy is improved, but device complexity increases due to additional control requirements
Solution Approach 1:
The patent integrates multiple functions into the battery management system including temperature control, voltage regulation, equilibrium state monitoring, and measurement execution. By making the BMS universal and multi-functional, the system achieves standardized measurements without proportionally increasing complexity, as the same hardware performs multiple standardized operations
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
This approach enables more accurate and efficient charging and discharging of vanadium-based batteries, improving battery management and power control within energy storage systems, and adapts vanadium-based batteries for effective implementation in energy storage systems.
Implementation Method 1
RBs are electrochemical energy conversion devices, that exploit redox processes of redox species dissolved in a solution
Implementation Method 2
open circuit voltage (OCV) measurements
Data Source
AI summary
At least some embodiments herein are related to a semiconductor chip assembly comprising: a memory containing information related to entering a standard state for a vanadium-based battery; and a processor, operatively connected with the memory, that provides instructions or commands related to entering the standard state for the vanadium-based battery, by setting a constant temperature that is used in performing open circuit voltage (OCV) measurements, by setting one or more voltage values with respect to a particular voltage region that is used in performing the OCV measurements, and maintaining an equilibrium state of the vanadium-based battery while performing the OCV measurements. Also disclosed is a method comprising: entering a standard state for a vanadium-based battery and maintaining an equilibrium state of the vanadium-based battery while performing the OCV measurements. Additionally disclosed is a system comprising: at least one energy storage component having a plurality of vanadium-based batteries arranged in cells or packs; and a battery management component, operatively connected with the energy storage component, to provide battery management control for entering a standard state for the energy storage component.