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Tesvolt takes stake in Stercom Power Solutions

Press release

New OnBoard Charger version for up to 850V

Stercom is now delivering the OBC_22KW-850-32 Version for an even higher battery voltage!

More information: Onboard Charger (OBC)

Pit stop at the bus stop

  • Stercom offers an environmentally friendly charging system due to the reduction of battery weight and increased range thanks to intelligent reloading at stops
  • ICI (Inductive Charge Inverter) allows inductive charging up to 20cm air gap
  • Fast charging with up to 22 kW possible

Weyarn, 15.04.2019.

E-mobility faces two major challenges that are directly linked: the lack of infrastructure and the range of electric-powered vehicles. The ICC (Inductive Charge Inverter) charging system developed by Stercom offers a solution for both aspects through inductive fast charging. "ICI shows its potential especially in public transport. Buses usually travel the same routes in cities, passing central hubs. These locations are ideal for a kind of inductive pit stop, "explains Robert Sterff, Managing Director of Stercom Power Solutions. As soon as a bus has approached one of the stops with an integrated ICI system, the battery is partially charged with up to 22 kW in a fast process.

Fast charging through interaction of ICI and supercaps
The installation of several of these charging stations along the bus line creates the necessary infrastructure, which in turn solves the problem of reach. The possibility of continuous partial charge at the stops, the size and range of the battery is no longer crucial, but the ability to fast charge. "The fast partial charge at the stops is only possible through the use of high-performance batteries. Frequently, supercaps are used for this, which load themselves up again in 15 minutes, say at the last stop, "says Sterff. The reduction in battery size also ensures less loss due to the lower heat generation, more space for the payload and so finally for a better cost / benefit ratio. The size of the battery also acts through the smaller mass to be accelerated energy-saving and environmentally friendly.

Larger air gap between coils possible
The system developed by Stercom Power Solutions enables very efficient energy transfer even over large air gaps of up to 20 cm thanks to state-of-the-art silicon carbide circuit breakers and optimized coil control. So, in addition to buses, for example, high-legged SUVs can be loaded without lowering the secondary coil in the vehicle extra. The new, more powerful ICI system features automatic coverage detection, enabling easier and faster positioning of the vehicle above the charging station as a prerequisite for optimal fast charging.

About Stercom Power Solutions GmbH
Stercom Power Solutions GmbH is an expert in sophisticated energy storage systems and optimized power electronics. The company, founded in 2014, already uses advanced and environmentally friendly technologies for electromobility in accordance with its slogan Feel thE-Power, drawing on its engineering expertise and a modular system of memory components and efficient software tools.

Starting today we proudly announce the release of our new software V30.07 for both the OBC_22kW450 and OBC_22kW800.

V30.07 includes the following improvement and new features:

  • Full support of the CAN SAE J1939 Software stack
  • SAE J 1939 Diagnostic Messages for improved HV system trouble shooting
  • Improved regulation behavior in poor grid quality or generator supply applications
  • Improved parallel (cluster) operation in various AC input modes
  • Optimized CCS DC charging in combination with the integrated EPLC module based on the DIN 70121 standard.
  • Enhanced DC charging standard ISO 15118 in preparation

This new software supports the new CAN SAE J 1939 protocol V5.2 which is mandatory for customers using the DC charge with the embedded EPLC module or the enhanced cluster operations.

For more information klick here.

Successful certification according to ISO 9001: 2015

TÜV Certifiction

Martin Kutschker, Jan Fritz and Andreas Hohenadl have successfully completed the Functional Safety Engineer training at the TÜV SÜD Academy.

Storagesystems with great impact

Charge batteries faster with up to 22 kW

  • AC fast charge in less than 3 hours with 22 kW
  • Compatible with all standard AC charging stations
  • Optionally integrated Power Line Communication (PLC) for DC fast charging
  • Two voltage versions for batteries from 200 V to 400 V or 400 V to 800 V.
  • Scalable through parallel connection of up to 8 OnBoard Chargers for AC High Power applications

Weyarn, 05.09.2019.

The ability to fully charge batteries within a short period of time is a key factor in deciding on the success of electromobility, alongside sufficient infrastructure and high-performance batteries. Stercom Power Solutions is launching a flagship product, the OnBoard Charger 22kW (OBC_22kW), which is a response to the current long AC charge times. "The OnBoard Charger OBC_22kW also enables a significantly shorter charging time of the vehicle batteries, even with AC charging. With a 32 A AC wallbox even large batteries can be fully charged in just under three hours in the fast charging process. Its volume and weight differ only insignificantly from those of smaller onboard chargers, "says Robert Sterff, Managing Director of Stercom Power Solutions.

The quantum leap in volume and weight was made possible by the use of the latest Silicon Carbide semiconductors with the lowest switching losses and the use of efficient cooling technology. The Stercom OBC_22kW sets new standards in terms of energy density and performance in its class.

It is available in two versions for vehicle batteries from 200 V to 400 V or alternatively from 400 V to 800 V. Both versions deliver a real 22 kW in their voltage ranges. "An advantage of the OnBoard Charger is also its scalability. For AC high-power applications, up to eight devices can be connected in parallel, "says Sterff. In addition to charging via the AC Wallbox, the new OBC also includes a Power Line Communication (PLC), which, as an alternative, enables even faster DC charging.

The new OnBoard Charger shows its potential especially in combination with the charging system ICI (Inductive Charge Inverter) from Stercom Power Solutions. The inductive fast charging system with 22 kW also makes it possible to recharge batteries with high performance without contact. In public transport can be done at bus stops a quick partial charge of the battery. Due to the possibility of regular recharging, the battery size can be significantly reduced while maintaining the same range. The thus lower to be accelerated mass is again energy-saving and environmentally friendly. An aspect which is also taken into account by the OBC due to its low dead weight.

Visit us at the eMove360 ° in Munich - Hall A6, Stand 403 - and convince yourself of our new OnBoard Charger.

About Stercom Power Solutions GmbH

Stercom Power Solutions GmbH is an expert in sophisticated energy storage systems and optimized power electronics. Based on its slogan Feel the Power, the company, founded in 2014, already uses advanced and environmentally friendly technologies for electromobility, drawing on its engineering expertise and a modular system of memory components and efficient software tools.

Cooperation with Analog Devices

  • Stercom introduces new bidirectional DC/DC Booster SPB 30kW
  • Booster is the result of the cooperation with Analog Devices in the ADI ecosystem
  • Presentation at the booth of Analog Devices (ADI) (Booth 442, Hall 6)

Weyarn, 7 May 2019

Stercom Power Solutions presented its new bidirectional DC/DC Booster SPB 30kW at the PCIM in Nuremberg. The booster allows an active connection of a memory system to an intermediate circuit and can be used in all applications with lithium batteries and supercap stacks. The new product is the result of close cooperation in battery and cell management between Stercom Power Solutions and chip manufacturer Analog Devices (ADI).

The cooperation between the two companies takes place within the context of the ADI ecosystem created by Analog Devices. Stercom Power Solutions as a partner provides its extensive knowledge in the field of advanced battery management systems for energy storage applications. By cooperating with various partner companies, ADI offers its customers better support in the development of innovative power management solutions.

Analog Devices was exhibiting at booth 442, hall 6, both the booster developed jointly with Stercom Power Solutions and its trendsetting active cell and battery management based on ADI chip technology.

PCIM in Nuremberg is the leading trade fair for power electronics, intelligent motion, renewable energy and energy management. It took place from 7 to 9 May 2019 at the Nuremberg Exhibition Centre.

About Stercom Power Solutions GmbH

Stercom Power Solutions GmbH is an expert for advanced energy storage systems and optimized power electronics. Founded in 2014, the company already uses advanced and environmentally friendly technologies for electromobility according to its slogan Feel thE-Power, drawing on its engineering expertise, a modular system of memory components and efficient software tools.

Einstein Elevator

The Einstein Elevator is a 34 million euro large-scale research facility of the Hannover Institute of Technology (HITec) of the Leibnitz University with the aim of interdisciplinary new insights into the behavior of different substances under weightlessness or adjustable gravity to allow.

Due to the extreme acceleration of a ton-heavy experimental capsule in a 40 m high tower, it enters a parabolic flight and is then in a state of almost complete weightlessness for about 4 seconds.

Unlike similar experiments - such as the drop tower in Bremen, where weightlessness can be simulated three times a day - the innovative, linear drive technology (see magnetic levitation trains), a vacuumed experimental capsule and the fast rechargeable high-performance accumulator allow up to 100 times a day a new experiment possible. The necessary enormous drive power would overwhelm the normal network.

Therefore, an electrical high-performance storage unit by Stercom Power Solutions GmbH is used as a "buffer" or "booster".

Successful Partnership

Wittenberg / Berlin, September 12, 2018 - Tesvolt, manufacturer of electricity storage systems for trade and industry, has won the prestigious German Entrepreneur Award. The award was presented to the Wittenberg company yesterday evening as part of a festive award ceremony in the ZDF Capital Studio. The jury rated Tesvolt as one of Germany's most successful start-up companies in recent years. The German Founder Award is awarded every year by ZDF, stern, Sparkasse and Porsche. read more ...