17967372. DETERIORATION DIAGNOSIS APPARATUS OF BATTERY AND DETERIORATION DIAGNOSIS METHOD OF BATTERY simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)
Contents
DETERIORATION DIAGNOSIS APPARATUS OF BATTERY AND DETERIORATION DIAGNOSIS METHOD OF BATTERY
Organization Name
TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor(s)
Kentaro Suzuki of Kariya-shi Aichi-ken (JP)
Jun Satoh of Toyota-shi Aichi-ken (JP)
Koji Yamada of Kusatsu-shi Shiga-ken (JP)
DETERIORATION DIAGNOSIS APPARATUS OF BATTERY AND DETERIORATION DIAGNOSIS METHOD OF BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 17967372 titled 'DETERIORATION DIAGNOSIS APPARATUS OF BATTERY AND DETERIORATION DIAGNOSIS METHOD OF BATTERY
Simplified Explanation
The patent application describes a battery deterioration diagnosis apparatus that can assess the condition of individual cells within an assembled battery. Here are the key points:
- The apparatus includes one or more processors that perform various functions.
- The processors discharge each cell in the battery while measuring its voltage.
- Using the voltage data obtained during discharging, the apparatus estimates the degree of deterioration for each cell.
- The discharging process continues until all cells reach a predetermined end voltage.
- The predetermined end voltage is the point at which the rate of change in cell voltage per unit discharging amount sharply increases.
Potential applications of this technology:
- Battery manufacturers can use this apparatus to assess the quality and performance of their products before shipping them to customers.
- Electric vehicle manufacturers can employ this technology to monitor the health of the battery packs used in their vehicles, ensuring optimal performance and safety.
- Energy storage system operators can utilize this apparatus to evaluate the condition of batteries used in grid-scale applications, enabling efficient maintenance and replacement strategies.
Problems solved by this technology:
- Traditional battery testing methods often lack the ability to assess individual cell deterioration within an assembled battery accurately.
- This apparatus provides a more precise and efficient way to diagnose the condition of each cell, enabling targeted maintenance or replacement.
- By identifying deteriorating cells early on, potential safety risks and performance degradation can be mitigated.
Benefits of this technology:
- Improved accuracy: The apparatus provides a more accurate assessment of individual cell deterioration, allowing for targeted maintenance and replacement.
- Time and cost savings: By diagnosing battery deterioration more efficiently, manufacturers and operators can save time and resources.
- Enhanced safety and performance: Early detection of deteriorating cells helps prevent safety incidents and ensures optimal battery performance.
Original Abstract Submitted
A deterioration diagnosis apparatus of a battery includes one or more processors. The one or more processors are configured to execute discharging of each of a plurality of cells included in an assembled battery while measuring a voltage of each of the cells, estimate a deterioration degree of each of the cells using voltage data indicating a transition of the voltage of each of the cells from a discharging start voltage to a predetermined discharging end voltage, and end the discharging when voltages of all the cells included in the assembled battery reach the predetermined discharging end voltage. The predetermined discharging end voltage is a cell voltage at which a change degree of the cell voltage per unit discharging amount starts to sharply rise while the cell voltage is dropping due to the discharging.
