ENCAP energy storage solutions with graphene-supported supercapacitors

Graphene Supercaps - Revo­lutio­nary Energy Storage

Ultracap-Knowledge | Rainer Hake | reading time: 4 minutes

Graphene revo­lu­tion in the energy sto­rage market

Graphene-enhanced ultraca­pacitor energy storage systems are being labelled a revo­lution in the industry. The physical and chemical pro­perties of this alter­native to acti­vated carbon in super­capa­citors clearly speak in favour of this.

In principle, the use of graphene layers just one molecule / atom thick instead of the usual acti­vated carbon is about further opti­mising the main pro­perties of ultra­capa­citors: Storing and releasing large amounts of energy in a short space of time.

Reports from materials research on improved graphene deri­vatives have raised many hopes in recent years. The extra­ordi­narily high elec­tronic mo­bility and the extre­mely high surface area in rela­tion to volume are not the only advan­tages of graphene. It also has higher ther­mal conduc­tivity than acti­vated carbon, greater chemi­cal stability and parti­cular mecha­nical strength. All aspects that are decisive factors in the pro­duction of high-perfor­mance ultra­caps in thinner, lighter designs with a long service life.

The biggest limitation of this ma­terial inno­vation is its pro­duction. Pro­duction costs are signi­ficantly higher com­pared to conven­tional ultra­caps that use acti­vated carbon. However, pro­cesses such as chemical vapour depo­sition (CVD) and the develop­ment of hybrid materials (graphene with nano-materials) are ensuring a positive develop­ment in economic efficiency. It is clear that graphene ultra­capa­citors and their em­bedding in energy storage systems are a very useful ad­dition or alter­native to the current ultracap tech­nology standard. Due to the current cost situation, this is pri­marily where parti­cularly high char­ging and dis­charging capa­cities or high energy densities are required.

The Dubai-based supercap manu­facturer ENCAP is developing into an important player in this market for high-end energy storage systems. CAPCOMP GmbH has been distri­buting ENCAP energy storage solutions since January 2024 in cooperation with the Swiss company BIRR energy. Ask us for advice and detailed product information.

Product information

ENCAP energy storage solutions with graphene supercap components

Specification of ENCAP energy storage systems with graphene

Direct current energy and direct current voltage

The system offers a remarkable 10kWh DC energy storage with a voltage range between 43.2 VDC and 60.8VDC and a nominal voltage of 48VDC. The internal resistance is impres­sively low at less than 4 mΩ. Everyone knows what that means for efficient energy transfer.

New: Encapsulated cells

The core of ENCAP's innovation lies in the technology of encapsulated cells. Each cell operates at a nominal voltage between 6.4~6.6 VDC.

Charging and discharging characteristics

  • Charging: The ENCAP system allows a maximum charging current of 1C at 25°C and utilises the CC/CPNP* charging method for fast and efficient energy absorption.
  • Discharging: Similarly, the system can operate with a maximum continuous discharge current of 1.5C at 25°C, utilising the CC/CPNP* method for smooth and safe energy delivery.

* CC Charging (Constant Current Charging): Charging process at a constant current until it reaches a certain voltage threshold. During CC charging, the voltage of the battery gradually increases while the charging current remains constant.

* CPNP Charging (Constant Power non-programmable Charging): Charging process at a constant power level (watts) until it reaches a certain voltage threshold. In CPNP charging mode, the charging current gradually decreases while the voltage is kept constant. CC/CPNP charging is often used in high-performance chargers for lithium-ion batteries to optimise charging time and extend battery life by charging the battery with an ideal current and voltage profile.

EN-CONNECT: Integrated software

The associated EN-CONNECT software monitors and manages the energy storage system. Further features:

  • Real-time data: Total voltage, individual cell voltages, current, temperature,
    instantaneous power and more.
  • Safety functions such as circuit breaker status, SOC and energy consumed
EN CONNECT software for ENCAP energy storage systems
Dimensions of the ENCAP energy storage unit

Mechanical specifications

  • Dimensions of the device: 433 X 335 X 650 mm
  • Weight: 120kg
  • Housing: robust aluminium oxide/GI powder coating; 300A clamping column
  • OLED display
  • Connectivity: WIFI, CANBUS, BLUETOOTH
  • Safety alarms: Buzzer alarm system for over/under voltage,
    overcurrent and overtemperature.
  • Dry contacts: Both output and input contacts offer additional hardware
    additional hardware protection and terminal disconnection for improved


Who can place an Order with us?

All those who have registered a trade. We supply to large customers as well as medium-sized companies, small busi­nesses and engineering offices. Schools, colleges, univer­sities and public institu­tions are also provided with technical advice and supplies. Depen­ding on the purchase quantity and product, we grant staggered prices that can vary on a daily basis. Ask us for an indivi­dual offer.

Do I have to order online in the shop?

No, you are also welcome to request an individual offer. The ordering option at shop24.capcomp.de is particularly suitable for smaller quantities. The WEBSHOP is to be understood as an additional service offer where you can get a quick overview of availability, delivery times and prices. Furthermore, with its filter and search function, the shop also offers a quick overview of the different variants, designs, voltages, currents. Our stock in Freiberg am Neckar (South West of Germany) is well stocked for the common types. Provided that our suppliers accept it, special solutions are also offered here. In this case, we recommend that you ask us about delivery times.

What can you expect from CAPCOMP?

Competitive, fair pricing and clear communication are our top priorities. We thrive on long-term customer relationships. That is why we take great care to answer your questions and concerns in a professional and impeccable manner. The quality of CAPCOMP's advice and sales performance is highly valued by our industrial customers. Your success is our success.

Where can I get current certificates from the manufacturers?

You can obtain the current certificates of the manufacturers directly on request via our info form. Due to the enormous amount and variety of product and company certificates, we do not want to make your selection unnecessarily difficult. Simply let us know which documents for which manufacturer and/or product you require. We will send you the requested documents directly.


QS/QM, Health & Safety, Certificates of Conformity, Compliance and Environmental Certificates

  • ISO 9001:2015
  • ISO 14001:2015
  • UK Conformity
  • CE Conformity
  • EU RoHS
  • SDS Safety Data
  • CRRC
  • Halogen Free
  • et al
Why are components like ultracaps called different names?

The variety of terms is explained by the English-language terms commonly used in the electronics industry, which are often mixed with German terms or used synonymously. In some cases, manufacturers have also introduced artificial terms to better distinguish themselves from competitors. Here are the most important examples:

Double layer capacitors (DSK) are referred to synonymously as:

  • EDLC (Electric Double Layer Capacitor)
  • Supercapacitors = Supercaps
  • Ultracapacitors = Ultracaps
  • Goldcap™ [Panasonic]
  • Boostcap™  [Maxwell]
  • Greencap™  [Samwha]
  • PURIXEL™  [Pureechem] for supercap cells
  • PURETRON™  [Pureechem] for supercap modules

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