Ultra-Thin and Compact Lithium-ion rechargeable battery “EnerCera battery” series

EnerCera batteries are available in two types: EnerCera Pouch, an ultra-thin product with thickness of 0.45 mm and good bending resistance, and EnerCera Coin, a coin-shaped product with thickness of 1.3 to 2 mm suitable for mounting on circuit boards.
EnerCera Pouch products are available in three types—a high power type, a high heat resistance type, and a fast charging type—to accommodate a wide range of device designs. Both EnerCera Pouch and EnerCera Coin are available as ET Series products that exhibit high environmental resistance. Some models allow use even at temperatures as low as −40°C, while other models offer excellent float charging resistance, making them ideal for use in backup power supply systems. These products are ideal for applications involving cold chain temperature monitoring and as power sources for IoT devices installed outdoors.

Model Number		EC382704P-T	EC382704P-Hr	ET382704P-H	ET2016C-R	ET1210C-H
Appearance
Dimensions/Diameter (Without terminals)		38mm×27mm			20mm	12.5mm
Thickness (With terminals)		0.45mm			2.05mm	1.3mm
Nominal Capacity		27mAh (4.3V) 24mAh (4.2V)	20mAh	20mAh	25mAh	4mAh
Nominal Voltage		3.8V		2.3V
Charge	Charging Method	Constant Current (CC) – Constant Voltage (CV) charging		Constant Voltage (CV) charging (No current control required)
	Charging Voltage	4.3V 4.2V	4.2V	2.7V
	Standard Charge Current	13.5mA (4.3V) 12.0mA (4.2V)	10mA	-
Discharge	End Voltage	3.0V		1.5V
	Standard Discharge Current*1	27mA (4.3V) 24mA (4.2V)	10mA	40mA	2.5mA	0.8mA
	(Ref.) Peak Discharge Current*2	560mA	130mA	300mA	60mA	20mA
Bendability		Conforming to ISO/IEC10373-1 standard No deterioration after bending and torsion tests			-
Operation Temperature		Discharge: -20℃∼45℃ (Charge: 0℃∼45℃)	Discharge: -20℃∼60℃ (Charge: 0℃∼60℃)	-40℃∼70℃		-20℃*5∼105℃
Features		High Power	High heat resistance*3	Fast charging*4	Reflow soldering unapplicable	Reflow soldering applicable*6

IEC62133-2 certified.
Contents may be changed without notice.

Conventional Li-ion batteries use electrode active material powder, a conductivity aid, and an organic binder to bind them together to form the material for making electrodes. However, in this structure, the organic binder reacts with the electrolyte in high-temperature environments, resulting in reduced bonding strength and loss of electronic conductivity. As a result, conventional Li-ion batteries suffered from the disadvantages of having low heat resistance and being prone to degradation of battery performance.
Drawing on its proprietary ceramic sintering technologies, NGK developed the crystal oriented ceramic electrode, which allows sophisticated control of crystal orientation. The adoption of this crystal oriented ceramic electrode as the cathode for the EnerCera allows the lithium ions in the active material to travel faster, making it possible to create a high output battery with low resistance and high energy density. Furthermore, since EnerCera does not use an organic binder, it exhibits superior heat resistance even in high temperature environments. Combined, these features have enabled the success of EnerCera as an ultra-thin, ultra-small rechargeable battery with highly efficient power storage and output capabilities and heat resistance.

The EnerCera battery is a semi-solid state battery produced by infusing very small amounts of electrolyte into multilayer ceramic battery material. Since it contains no organic materials, and its ceramic plate is composed of only sintered electrode materials with trace amounts of electrolyte infused, EnerCera is a safe Li-ion rechargeable battery that has minimal risk of overheating, catching fire, and exploding.