Datasheet

L ITH IUM TH I O NYL C HLORIDE BATTE R Y
3
The lithium thionyl chloride battery uses liquid thionyl
chloride (SOCl
2) as its positive active material, and lithium
(Li) as its negative active material. The reactions of the
battery are shown below.
Products
Battery Reactions
Positive reaction: 2SOCl
2+4Li
+
+4e
-
4LiCl+S+SO2
Negative reaction: Li Li
+
+e
-
Total reaction: 2SOCl2+4Li 4LiCl+S+SO2
Positive
Terminal
(+)
(–)
Metal Lid
Metal Can
Top Lid
Negative
Electrode
Positive
Electrode
Separator
Bottom
Insulator
Negative
Terminal
Resin Seal
Melt Seal
Glass Seal
Positive
Collector
* Dimensions and weight are for the battery itself, but may vary depending on terminal specifications and other factors.
** Nominal capacity indicates duration until the voltage drops down to 3.0V when discharged at a nominal discharge current at 20 deg. C.
• Data and dimensions are just reference values. For further details, please contact your nearest Maxell dealer or distributor.
This battery is ideal for such long-term applications as power for electronic devices and electric power, water, and gas meters,
and especially as a backup power source for memory ICs.
The ER battery is for industrial use only.
When replacement is necessary, please contact the manufacturer of your equipment.
Overview
High 3.6-V voltage
The lithium thionyl chloride battery achieves a high voltage of 3.6 V.
Flat discharge characteristics
The change of internal resistance during discharge is minimal,
allowing for flat discharge voltage until end of discharge life.
High energy density
Provides high energy density of 970m Wh/cm
3
with discharge current of 100µA (ER6 type).
Wide usable temperature range
Can be used over a wide temperature range : - 55 deg. C to +85 deg. C (please consult with
Maxell if using in temperatures of -40 deg. C or less).
Superior long-term reliability
The extremely low self-discharge, together with the use of a hermetic seal, allows for stable
use over long periods.
Features
Principle and Reactions
Construction
ER18/50
ER6 ER6C ER17/33 ER3 ER3S
Model
6.36.36.36.36.36.3 Nominal Voltage (V)
3,650 2,000 1,800 1,600 1,100 790 Nominal Capacity (mAh)**
530457001001521 Nominal Discharge Current (µA)
5.415.410.715.415.4181
629.9253155.356.25
Dimensions*
22
ER17/50
3.6
2,750
125
17
52.6
20 15 Weight (g)* 15 13 8 7
–55 to +85 –55 to +85 –55 to +85 –55 to +85 –55 to +85 –55 to +85 Operating Temperature Range (deg. C) –55 to +85
Diameter (mm)
Height (mm)