Shell E-Transmission fluid and Kreisel Electric battery module
Shell E-Transmission fluid and Kreisel Electric battery module

“Shell has always been committed to improving the efficiency, performance and lifetime of engines, so it is no surprise that they have also developed the best fluid for active battery immersion cooling,” said Markus Kreisel, Managing Director of Kreisel Electric. “Shell’s fluid is an integral part of Kreisel Electric’s battery modules. It effectively controls the temperature of each individual battery cell, even during fast-charging or rapid acceleration. This stabilises the cells, which in turn offers a superior safety environment. The Shell fluid also improves cell performance, resulting in a high power-to-weight ratio that delivers improved range and extends their lifetime.”

“Electrification has a vital role to play in decarbonisation pathways especially for the future of mobility,” said Carlos Maurer, Executive Vice President, Global Commercial, Shell. “Collaboration is key. By joining forces with Kreisel Electric we can help meet customers’ demand for competitively priced, powerful, lighter, safer and longer lasting battery systems.”

Battery efficiency is closely linked to the energy required to either heat up or cool down the battery so it reaches its optimal operating temperature. With the Kreisel and Shell solution less energy is spent regulating the battery temperature because the specialised fluid has strong thermal management properties and also touches more of the surface of the battery cells. The Kreisel and Shell solution delivers improved energy efficiency of up to 28% for the battery cooling when compared to conventional side wall cooling as commonly used in the automotive industry. 1 As less energy is wasted to maintain the battery’s optimal operating temperature, the stronger battery performance can result in improved range relative to battery size, as well as a longer lifetime and superior safety when compared to other current conventional lithium-ion batteries.

The Kreisel and Shell solution also performs better under fast-charging conditions. Fast-charging over time can impact a battery’s state of health and the amount of energy the battery can hold. The Kreisel and Shell battery system can have up to 80% battery lifetime improvement when fast-charging. 2

Kreisel Electric and Shell will also conduct combined R&D to enhance battery and fluid technology system.

 “Working with Kreisel Electric and its cutting-edge battery technology allows us to deliver our mutual commitment to improve electric battery safety and stability while simultaneously improving their performance,” said Selda Gunsel, Vice President, Global Commercial Technology, Shell. “Immersive cooling technology plays a key role in the next generation of batteries and its benefits will help speed up the adoption of battery electric solutions, especially in the transport sector.”

The Kreisel Electric and Shell battery technology solution

Kreisel Electric has designed a laser-welded battery solution that includes single cell fusing and controlled de-gasing channels. This in turn is combined with high energy cells and results in excellent power-to-weight ratio and extended battery lifetime when compared to common conventional batteries, while still delivering critical battery stability and safety. The efficient design and the innovative thermal management system enable competitive and automated production. Shell has developed a specialised non-conductive thermal management fluid, which immerses the battery cells in the Kreisel battery design.

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Royal Dutch Shell plc Media Enquiries:

+44 (0) 207 934 5550

Kreisel Electric Media Enquiries:

+43 7949 21400 1305

About Shell

Royal Dutch Shell plc is incorporated in England and Wales, has its headquarters in The Hague and is listed on the London, Amsterdam, and New York stock exchanges. Shell companies have operations in more than 70 countries and territories with businesses including oil and gas exploration and production; production and marketing of liquefied natural gas and gas to liquids; manufacturing, marketing and shipping of oil products and chemicals and renewable energy projects. For further information, visit

About Kreisel Electric

Kreisel Electric GMBH & Co KG is an international battery solution-provider based in Rainbach, Mühlkreis district, Upper Austria. The company was founded in 2014 by three brothers, Johann, Markus and Philipp Kreisel. Kreisel Electric produces the most innovative battery technology for e-mobility and for stationary storage systems. Its core competences include battery development and production, integration and testing, prototyping and serial production, and software development.


Solution for an electrified world 2020, a technical appendix that explains the Kreisel Electric Shell technology -

Kreisel Electric press

1 The heat produced by the battery cells of a Kreisel battery is directly transferred to the cooling fluid. Therefore, the cooling fluid in Kreisel batteries does not need to be as cold as in conventional batteries to achieve the same battery temperature. The temperature difference between the fluid and the battery is up to 28% lower in Kreisel batteries compared to conventional liquid cooled batteries. As a result of the lower temperature difference between fluid and battery, vehicles equipped with Kreisel batteries have to use less energy and smaller radiators to release the heat to the environment

2 After 450 fast charging cycles, a Kreisel Electric’s immersion cooled battery has 92% state of health (SOH) vs 75% state of health for conventional batteries. At 92% SOH, Kreisel Electric’s batteries reach 450 cycles, compared with 250 cycles for conventional batteries. This represents a battery life improvement of 80% during fast charging due to better thermal management.