Solid-ceramic solid-state batteries
Various research institutes and companies are working on the development of solid-state batteries, including the PSI in Würenlingen. This involves drying electrodes. The liquid electrolyte in the previous Li-ion battery applications is fire-hazardous and therefore there are strict and cumbersome transport regulations. In the planned ceramic solid-state batteries, both the cathodes and the electrolyte are made of oxidic or sulphide materials. These batteries thus not only do without liquid components, but also without polymer components. Companies develop scalable manufacturing solutions for the drying and sintering of oxidic composite cathodes and solid electrolyseparators. However, it will take some time before this technology can be delivered in large quantities.
Accutron, July 2020
High energy density for new Li-ion capacitors
New Li-ion capacitors
Mobile systems and devices usually require powerful Li-ion batteries. These are specially manufactured for the respective industrial application and secured by sophisticated electronic protection technology. There are a few things to keep in mind here: In order to avoid fire danger and the like, the worldwide regulation UN 38.3 requires a transport test form from 2020, which must be attached to the shipment. In 8 individual tests, the behavior of the cell or battery at extreme temperatures and much more is described in detail in advance.
The new Li-ion capacitors are environmentally friendly, do not require heavy metals, are RoHS compliant and are not subject to the European Battery Regulation and therefore do not require the UN transport tests described above. Externally, they resemble the aluminium electrolyte capacitors, but have a completely different design internally. The current capacity is 40, 100 and 200 Farad. What about these novel Li-ion capacitors in connection with the Li-ion batteries that are common today? A replacement is not yet possible due to the capacity and energy technology achieved so far, but should remain in focus in the future.
Accutron, May 2020
Interview Corona times
Corona times are not easy times.
We talked to Guido Küng, Managing Director and founder of Accutron AG, about this.
JF: What's going on at Accutron at the moment? Batteries are needed everywhere in mobile systems.
Guido Küng (GK): Since about 80% of our batteries go to medical devices, we are now quite busy.
JF: You have a large battery range. What kind of batteries are mainly bought and what about delivery times in general?
GK: 90% lithium batteries are used, the remaining 10% is distributed between lead batteries, NiMh and NiCd. Delivery times are sluggish due to the large backlogs in Hong Kong.
JF: Since 2020, the test certificates have been mandatory in accordance with UN 38.3 for the transport of lithium batteries at the time of delivery. Is there still any ambiguity in this regard among your customers and is this generally complied with in accordance with the rules?
GK: Until the end of 2019, UN38.3 (passport for lithium batteries) was still mandatory informally, but since January 2020 it has been required by law. Each customer is therefore obliged to bear the only one-time costs for the UN38.3 test.
JF: What are the most common questions from your customers at the moment?
GK: Can my delivery come a little earlier?
JF: You are now wearing protective masks in your sales program. What types are these and what are the respective delivery times? How do you assess the demand, as the whole world is looking for appropriate masks.
GK: Our Chinese friends/suppliers are very concerned about us here because they themselves have been through exactly what we are doing here now. So they offer us protective masks from their stocks. We have published this on our website, but there is no reaction yet. We now know that the major distributors now have such masks in their assortment. (It was meant to be a favor anyway.)
JF: How do you assess the market situation in your specific market in the coming months?
GK: That is very difficult to assess at this stage. My personal wish is only that everything gets back on track, it really hurts to hear how many people and businesses are doing very badly now! I keep my fingers crossed!
Interview, conducted in April 2020
Protective masks available
You can now buy protective masks from us.
We carry these in different versions.
Give us a call: Tel. 043 266 20 50.
Un amendment UN 38.3
Test certificate for lithium batteries becomes mandatory
January 1, 2020 was an important date for anyone who ships lithium cells or batteries. From that date, all suppliers must be able to provide a test summary proving that the shipping products have passed the UN 38.3 test for the transport of lithium batteries. This Regulation applies to all modes of transport and applies to cells and batteries shipped solely with equipment and/or in the final product.
Dangerous goods - lithium cells/batteries
Lithium cells and batteries have always been classified as dangerous goods. The safety requirements, including the UN 38.3 transport test, are correspondingly high. In eight individual tests, the behavior of the cell or battery is tested at extreme temperatures, external short circuits and overcharging. Traffic-specific factors such as impact reactions, vibrations, height changes and crushing are also being investigated.
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