Regenerative Braking is an electric braking method that produces braking force by operating the motor as a power generator to convert kinetic energy to electric energy, which is also called, “Regenerative Braking Power.” In this system the turning resistance during the power generation can be used as braking force. Regenerative Braking is widely used in areas where the motor serves as the power source, e.g., elevators, electric locomotives, or ordinary vehicles. 

Our Hy-Cap EDLC, with very low internal resistance(ESR), is ideally suited for back-up power applications that require strong current for short period of time or quick response, while our hybrid-type Hy-Cap, with double density capacitance compared to the standard EDLC is the right solution for back-up power demands requiring low current for long period of time in continuous mode. 

VINATech's Ultracapacitor (i.e. EDLC) can be applied in various industries and VINATech has been committed to developing environmentally friendly technologies and solutions. Lithium Hybrid Capacitor VPC series works ideally at 3.8v operating voltage and support battery powered products such as NBIoT and GPRS communication modules.

3v Ultracapacitors has provided since 2010 and Hy-Cap NEO Ultracapacitors has been developed to provide optimized performance under high temperature and humit conditions. VINATech offers world class quality and long lifecycle based on the process technology developments with applying smart factory technologies. 

Using activated carbons, a natural material, our Hy-Cap is environmentally-friendly.
 
It offers very high density power with super-low ESR (low internal resistance).
VINATech are the first company in the world to develop 3.0V EDLC creating a 23% increase in power density compared to 2.7V Hy-Cap’s.
 
Our hybrid type Hy-Cap offers twice the energy density of the standard EDLC range. By using PC (Propylene Carbonate) the P-EDLC operates in a wider temperature range than Batteries. The Hybrid technology has impressive power output and long life time, ideally suited to replacing low energy density battery technology.
 
Vinatech has the largest production capacity of cylinder type capacitors focusing in the0.5F~1,000F range. 

Hy-Cap has acquired various quality approvals including UL, IATF 16949 :2016. 
Also Hy-Cap complies with RoHS and WEEE. 

Hy-Cap is the brand name for the VINATech designed and manufactured super-capacitor.  

‘Capacitance’ means the amount of electrical charges that can be stored or discharged
per voltage. 
 
‘Rated Voltage’ means the maximum voltage that can be applied continuously in standard( or normal) conditions without harming the component.. 
 
‘Max. Current’ means the maximum amount of current that can be supplied to equipment.
 
Resistance
AC-ESR(Alternating Current-Equivalent Series Resistance):
The resistance value, measured in AC setting enabling fast quality test measurement
 
DC-ESR (Direct Current-Equivalent Series Resistance) means ESR value that is measured by repetitive charging and discharging in direct current setting.
 
According to IEC62391 VINATech measures DC-ESR(Rd) by the following formula.
 
 
‘I’ is the discharging current, and ‘△U3’ is the difference value between the discharging voltage at start and the discharging voltage 10ms later (or the voltage value that comes after subtracting the discharging voltage 10ms later from the start discharging voltage)
 
‘Leakage Current’ is current that leaks from the circuit where the current is supposed to flow. The current that leaks from a case or a point of earthing is also called the leakage current.
 
‘Energy density’ refers to the amount of energy stored in a set weight or a set volume. The term for this is Wh/kg or Wh/I.
 
‘Power Density’ refers to the amount of power that is generated from a set weight or a set volume. The term for this is W/kg or W/I. 

Basically, the hybrid capacitor is a combination of two different electrodes, one is EDLC electrode, and the other is Pseudo-Capacitor electrode. Therefore, this capacitor sustains both EDLC and Pseudo-capacitor characteristics. For example, an EDLC electrode in the Hybrid Capacitor has high density power and the other Pseudo-Capacitor electrode has high density capacitance (energy).
 
Among its advantages, it is environmentally-friendly, and its energy density is higher than an EDLC. Also its charging and discharging is fast.
 
VinaTech’s Hybrid Capacitor is also called P-EDLC. 

Pseudo-Capacitor is an electrochemical supercapacitor where energy (pseudo capacitance) is generated through red ox reaction between an electrode and electrolyte.
 
There are disadvantages of the Pseudo-Capacitor. Metal active material, its main raw material is expensive and its manufacturing process is difficult. Also, its ESR (Equivalent Series Resistance) is high. 

An EDLC(Electric Double Layer Capacitor) refers to two parallel layers of electric charges that are formed around an object interface with lot of holes and with special materials that produce electric statics.
Electric Double Layer Capacitor stores energy by using Electric Double Layers where electric charges are combined together for charging and separated for discharging. Thus, it has little damage to an electrode, which allows it to last semi-permanently, and to charge and discharge quickly.