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Hitachi High-Tech Corporation has developed a method of Rapid Diagnostics of Battery Degradation that instantly evaluates the performance degradation and remaining life of lithium-ion batteries during or after use. Compared to the conventional method, which took 2 to 4 hours to evaluate, it takes from only a few seconds up to 2 minutes to evaluate the performance degradation and remaining life of battery using this method.
By introducing the evaluation method into each process of the production, use, and recycling of lithium-ion batteries for electric vehicles, it can be used as a new data management platform for functions including the “monitoring of individual battery usage status,” the “clarification of remaining performance evaluation at the recycling/reuse phases,” and “visualization of supply-and-demand balance and market value forecasts for battery reuse/refurbish.”
The method to rapidly diagnose battery degradation can rapidly analyze and visualize the performance degradation and remaining life of lithium-ion batteries
You can rapidly identify data such as SOH (State of Health), which is the primary index of performance degradation, from the charge-discharge information of lithium-ion batteries. Compared to conventional methods with which took up to 2 to 4 hours to evaluate, it takes from only a few seconds up to 2 minutes to evaluate batteries using this method.
Can be applied to various charge-discharge equipment by analyzing batteries using an optimized algorithm to complement every characteristic of the charge-discharge equipment. Can easily build a measurement system by utilizing equipment that has already been installed.
Charge-discharge data from the general charge-discharge analysis equipment are instantly analyzed in the cloud and analysis reports are displayed on the customer’s dedicated analytics dashboard in real time. In addition, the analysis reports are stored in the customer’s database.
A comprehensive battery data management platform based on residual value analysis and management of lithium-ion batteries
A circular economy links the effective use of resources to economic growth – every company is currently required to shift towards a sustainable business model. The same is true for lithium-ion batteries, which are essential for the power source of electric vehicles. In addition to promoting recycling as resource circulation, promoting the reuse and remanufacturing of used lithium-ion batteries and prolonging their life without immediately disposing of them are new challenges to realizing a circular economy.
It is important to clarify the residual value by precisely evaluating the battery’s performance degradation status at the recycling/reuse phases. It is possible to manage the remaining life of a large number of used batteries by introducing this method to rapidly diagnose battery degradation. In addition, incorporating this method into the battery’s refurbishing factory line enables semi-automated or automated work to grade the residual performance of batteries, and it is expected that the efficiency in the reuse and remanufacturing of lithium-ion batteries will be further improved.
You can identify the residual value of a battery in advance for each ID after it has been used by monitoring the historical data of the usage status of the individual battery in use in the electric vehicle from the primary usage stage. It is also expected it can be used as a battery’s entire lifetime data management platform, to enable visualization of the supply-and-demand balance and market value forecasts at the secondary and tertiary reuse stages of batteries.