TWAICE battery model
News

Launching V8 of the TWAICE battery model

Version 8 of the TWAICE battery model comes with two major updates to the virtual battery tester and the thermal model. Now, you can set up simulation studies with a resting phase and set up scenarios that require a configurable heat transfer between the cell and outside temperature.

TWAICE / Jan 26, 2023
Download the content

twaicetech

TWAICE helped me to learn more about: Launching V8 of the TWAICE battery model read article here:

www.twaice.com/newsroom/battery-model-v8-launch

#thinktwaice

New feature for the virtual battery tester

Battery-powered products such as electric vehicles and energy storage systems are not always in operation. There are always likely to be phases in which the battery is not in use. With our new feature, you can now easily set up simulation studies with a resting phase so that you can test the impact of these resting phases on battery performance and aging.

For example, you could set the cell to rest for 24 hours once a State of Charge of 50% is reached, after which the cycling will resume. This provides the opportunity for simulating a huge number of use cases.

Here are some examples of scenarios that you could simulate:

  • For passenger cars: these are unlikely to be in use 24/7. Easily include a rest of, for example, 14 hours in your simulation scenario to simulate the time that a car might spend in the driveway on a weeknight.  
  • For bus/commercial vehicle fleets of buses: it may be a standard procedure to charge these vehicles quickly at the end of the day, meaning the vehicles are resting overnight. To simulate this scenario, you could set the cell to rest for 8 hours at 100% State of Charge.
  • For energy storage systems: for use cases such as intraday trading, energy storage systems are likely to be in a resting state for a couple of hours or longer. This could be simulated easily with our new feature

More configuration options for the thermal model

Until now, the thermal parameters available for the thermal model were based on specific measurements that, once specified, could no longer be changed. Now, we have added additional parameters so you can simulate different scenarios that require a configurable heat transfer between the cell and the ambient air. This means you can now simulate scenarios where it might be necessary to adapt the heat transfer coefficient, for example because of active air cooling.  

We have also introduced cooling/heating power as an additional model input so that you can test different scenarios with active cooling or heating that go beyond air cooled systems. This means you can estimate early in the battery system development process how much cooling/heating might be needed over a battery’s lifetime, providing initial insights for selecting a cooling or heating system. Likewise, if you already know which cooling system you are going to use, you can adapt the operating strategy to make sure sufficient cooling will be available throughout the battery’s whole lifetime.

Want to get a jump-start on your battery development? Get a 14-day free trial and start speeding up battery system development now! Sign-up here.

Download the article
Featured Resources · On-DEmand Webinar

Mastering EV Battery Aging: Prevent Fires and Lithium Plating

Join our webinar on avoiding battery fires and non-linear aging with the new anode-potential model for faster, safer charging and improved battery lifespan.

Watch recording
No items found.

Related Resources

October 29, 2024
October 29, 2024

TWAICE Achieves ISO 27001 Certification

TWAICE has earned the ISO 27001 certification, the leading and most recognized information security management system (ISM) globally. It assures customers that their data is being handled safely and securely.
February 25, 2019
February 25, 2019

Research Cooperation bawaii

The Munich-based startup TWAICE cooperates with the Institute of Automotive Technology at the Technical University of Munich in the research project bawaii to improve predictive battery analytics with the application of artificial intelligence.
June 28, 2019
June 28, 2019

TWAICE Anniversary

Successful financing rounds, employee boom, cooperations with global corporations: TWAICE has definitely outgrown the start-up phase on its first birthday!