Chip-type Ceramic Rechargeable Battery "EnerCera" Series

Overview

EnerCera is a Li-ion rechargeable battery with NGK's original Crystal Oriented Ceramic Plate as electrodes. The Crystal Oriented Ceramic Plate is composed of just an active material and it contains no organic binder or conductive material which exists in a Li-ion battery normally but does not contribute to battery capacity. Therefore, EnerCera realizes high energy density and low internal resistance with a small and thin body and is capable of high-temperature installation. The energy density is double and the internal resistance is less than a half ompared to commercial rechargeable batteries of the same size. Therefore, EnerCera is an ultra-small/ultra-thin onboard-type high-performance battery for operating ICs, sensors and a wireless communication system which needs large current such as several 10 mA to several 100 mA. In addition, CV (Constant Voltage)-charging capability eliminates the need for a charger IC to control the charge current.

Application Examples

Lineup

EnerCera has two types: “EnerCera Pouch,” an ultra-thin and bendable cell, 0.45 mm thick, for embedding in a card, and "EnerCera Coin," a coin type cell,1 mm to 1.8 mm thick, for mounting on a circuit board. EnerCera Pouch is the world's first thin-type Li-ion battery which can be embedded by hot lamination (above 100 degree Celsius) used widely in the IC card production. The EnerCera Pouch lineup has a fast charging type, a high-capacity type and a high-power type for customers' various device designs. EnerCera Coin is the world's first SMD (surface mount devices)-type Li-ion battery which can be mounted by Solder Reflow, commonly used as an electronic component-mounting process, and it has a high discharge current property sufficient to operate devices.

EnerCera Pouch Lineup

Model Number	EC382704P-T Coming soon!	EC382504P-P	EC382704P-C	EC382204P-C	EC302304P-C	EC382704P-H	ET271704P-H
Dimensions (Without terminals)	38mm×27mm	38mm×25mm	38mm×27mm	38mm×22mm	30mm×23mm	38mm×27mm	27mm×17mm
Thickness	0.45mm
Nominal Capacity (Charging Voltage)	27mAh (4.3V) 24mAh (4.2V)	20mAh(4.2V)	27mAh(4.3V) 24mAh(4.2V)	20mAh(4.3V) 18mAh(4.2V)	15mAh (4.3V) 14mAh (4.2V)	20mAh(4.2V)	5mAh(2.7V)
Nominal Voltage	3.8V						2.3V
Charging Condition	Constant current(CC) - Constant Voltage(CV) charging						CV charging
（Ref.）Peak Discharge Current*1	560mA	500mA	260mA	200mA	130mA	130mA	100mA
Bendability	Conforming to ISO 14443-1 standard No deterioration after bending and torsion tests
Oparation Temp.	Discharge:-20℃~45℃(Charge:0℃~45℃)					Discharge: -20℃~60℃(Charge: 0℃~60℃)	-40℃~70℃
Heatproof Temp. (in process)	80℃					135℃
Features	High power		High capacity			High heat resistance	Fast charging*2

*1 Voltage drop is less than 0.5V with continuous discharge for 0.1 sec. (at 25℃)
*2 Can be charged from 0% to 80% capacity in 14 min.

EnerCera Coin Lineup

Model Number	ET2016C-R Coming soon！	ET2016C-H Coming soon！	ET1210C-H
Size (Without terminals)	Φ20×1.8mm	Φ20×1.6mm	Φ12.5×1.1mm
Nominal Capacity (2.7V charge)	25mAh	20mAh	4mAh
Nominal Voltage	2.3V
Charging Condition	Constant Voltage (CV) charging (No current control required)
（Ref.）Peak Discharge Current*1	60mA	45mA	20mA
Oparation Temp.	-40℃～60℃	-20℃*2～105℃ [125°C type under development]	-20℃*2～105℃
Implementation specifications	Reflow soldering unapplicable	Reflow soldering applicable*3

*1 Voltage drop is less than 0.5V with continuous discharge for 0.1 sec. (at 25℃)
*2 -40°C to 105°C for RTC backup applications.
*3 Please check with us for the conditions.

IEC62133 certified
Contents may be changed without notice.