LI-ION BATTERIES ‘Battery model library’ could bring faster Li-ion development

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Battery analytics company TWAICE has created a ‘battery model library’ that they say will speed up the creation of validated simulation models for cell aging while also making the licensing of models more flexible.

TWAICE provides predictive analysis software for the development of Li-ion batteries through the use of ‘digital twins’, a real-time computerized model of a physical object or process, in this case a battery. The company builds virtual battery models and collects models with control units, allowing for virtual testing and analysis of Li-ion batteries, such as their general condition. With this information, it’s possible to predict battery life and take steps to improve battery longevity. Using TWAICE’s software, manufacturers can optimize their systems and validate battery systems.

A new battery model library

More recently, the company introduced its new battery model library which provides customers with the ability to acquire validated battery cell models much more quickly, increasing the flexibility of licensing models.

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“The TWAICE battery model library is a unique collection of electrical, thermal and aging cell simulation models that facilitates development by simulating instead of testing battery behavior. The concept has evolved from years working with different customers,” reads a press release on the TWAICE website.

Responding to the needs of clients, the battery model library can be deployed for a wide range of applications in the energy and mobility sectors, such as accelerating cell selection and system design and replacing lengthy testing cycles.

Developing new batteries

Lithium-ion batteries are becoming much more widely used as the world moves towards large-scale electrification, particularly in the mobility sector where consistent growth of electric vehicle (EV) adoption is being seen year-on-year. This is because Li-ion batteries have a high energy density, a slow loss of charge when not being used, and a strong energy-to-weight ratio.

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Using TWAICE’s battery model library, which is a collection of electrical, thermal, and aging cell simulation models, customers will be able to make use of digital twins to improve the development and deployment of their Li-ion batteries. This speeds up development because Li-ion battery designs can be entirely simulated which eliminates the need to build and test physical batteries, which a time consuming and costly exercise, especially when faults and problems are found which force researchers to return to the drawing board before re-producing and re-testing models.

With the library, customers can request cells and within three months, models are parameterized at TWAICE’s on-premises testing facilities. This rapid speed helps hasten development and time-to-market. TWAICE says that it uses testing and field data to make this possible, and the company hopes to provide standardized and validated models to meet a variety of customer demands and applications through the library.

“Customers want a variety of cells and they want them now. We are very happy to have reached the stage where we can offer just that”, said TWAICE Co-CEO Dr Michael Baumann.

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