How will the future of battery technology develop? (NMP solvent is one of the raw materials of lithium battery)

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As a new energy raw material company specializing in the production and supply of NMP solvent (N-methylpyrrolidone) for 10+ years, the Wisdom Fortress & Zesheng New Materials team pays attention to the development of the industry every day, including the development of battery technology. How can the future of battery technology develop? A battery research scientist and entrepreneur in the new energy industry said it might be time to seek innovations in cloud analytics.

This amazing scientist is Dr. Kai-Phillip Kairies, who has worked as a battery researcher and consultant in Germany, Singapore and California, and has accumulated rich experience in the field of innovative energy storage solutions. , he has a decade-long career and an extensive academic background. Dr. Kai-Phillip Kairies has extensive experience in innovative energy storage solutions as a battery researcher and consultant in Germany, Singapore and California.

Now, Dr. Kai-Phillip Kairies has renewed his position as CEO of ACCURE Battery Intelligence GmbH. This is a research-led startup that supports companies using advanced data analytics to understand and improve battery safety and longevity. Based on Dr. Kai-Phillip Kairies’ presentation at the European Battery Show, the editor has organized his presentation as follows:

Why are there more concerns than ever about lithium-ion battery capacity, safety, and longevity?

To win the “race to zero”, lithium-ion batteries play a vital role in storing renewable energy and powering our mobility. Our shared goal of zero emissions goes hand in hand to improve battery safety, performance and longevity.

Environmentally speaking, we need to use the batteries we have more efficiently. This is also important in terms of raw material shortages and resource conservation. Battery data can tell us how a battery’s charge cycles and other usage factors affect battery life and performance, and explain how to improve it.

All in all, we need to preach about safe, reliable and sustainable batteries, the backbone of our energy future.


What is the role of battery management systems in lithium-ion electronics?

A battery management system (BMS) monitors all cells within a battery pack and uses balancing to limit variation between individual cells. The BMS can also display the state of charge (SOC), which is used to determine the range of the car, or how long you can continue to use the laptop. It also has basic safety features, such as protection against overheating or deep discharge, which can be seen as the last line of defense against battery failure.

But this system has a downside: the BMS can’t tell when cells are exhibiting slight irregularities, so it can’t notify operators before they become dangerous. And one reason for this is that the BMS has limited access to data: it can neither see its own past nor the behavior of the millions of battery-like packs that define the baseline for all advanced diagnostics. Therefore, it is also greatly limited when predicting the state of health or predicting the remaining value of the battery.

So while a BMS can generate all the data needed for advanced analytics, it cannot be done locally. That’s why Dr. Kai-Phillip Kairies believes that to effectively operate batteries and successfully prevent fires and unexpected failures, we need to add a layer of safety before the last line of defense.

BYD blade battery

How can advanced data analytics contribute to innovation with battery intelligence?

A battery generates a lot of data during its lifetime. Since BMS is not designed to “transform” this data into actionable insights, predictions, most of the data is currently unused.

But through a “translator” like ACCURE Cloud, we are able to apply our algorithm and database knowledge from the behavior of millions of batteries and ultimately provide battery operators with “intelligence” far beyond what a BMS can do. In this way, we can make what’s going on inside the battery truly transparent: there’s no need to perform expensive and time-consuming lab tests, or any additional hardware and modifications to the battery system. “Intelligence” is based entirely on operational data that is already available.

Once we have data from BMS in ACCURE Cloud, it is cleaned and served in a structured way. The goals of data cleansing are to manage complexity, unify formats, and detect and (if possible) correct measurement errors. We use machine learning on the one hand and the knowledge of battery experts on the other to prepare the data for our “battery magic”.

After this, we can build a battery model of the battery (some people call it a digital twin). By extracting features such as open circuit voltage, lithium inventory loss, and complex impedance from field data, these digital twins allow us to detect anomalies that can lead to events such as battery fires; predict future battery performance and aging, and optimize in a timely manner run.

These algorithms can be applied to a variety of batteries, from micromobility (such as cell phones) and electric buses, to sports cars, ships and large energy storage facilities. Advanced analysis of batteries can also help determine the value of retired EV batteries in order to find suitable second-life applications for them.

The above is a part of the arrangement for the speech of the doctor. In addition to this being a promotion by Dr. to their new company, the cloud analysis and advanced data analysis of the battery will indeed be of great help to the future development of the battery.

So what is the progress of battery technology at this stage?

The editor has learned that a team of engineers from Imperial College London has developed a polysulfide-air redox flow battery (PSA RFB) to solve the problem of scaling up energy storage devices; the device is designed to support Renewable energy storage such as solar energy. There are also microcrystalline technologies developed by China’s GAC Group: a new generation of super-power lithium iron battery technology (SmLFP); BYD’s blade battery, CATL’s Kirin battery, and so on. Perhaps through the analysis of advanced data, these leading battery technologies can complement each other and bring more advanced battery technology to the new energy industry.

However, as a production supplier of NMP solvent (N-methylpyrrolidone), the batteries produced by these continuously upgraded battery technologies all need to use NMP solvents as raw materials. Therefore, no matter how the battery technology is upgraded, if you want to produce a large number of batteries with stable performance, you cannot do without the blessing of raw materials. Welcome customers who need NMP solvent to come to discuss cooperation, we have a variety of cooperation programs to choose from.

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