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20.06
SR/LR
SILVER OXIDE BATTERY / LR BUTTON BATTERY
Never swallow.
Always keep the battery out of the reach of infants and young
children to prevent it from being swallowed. If it is swallowed,
consult a physician immediately.
Never allow liquid leaking from the battery to get in your body.
The battery contains strong alkaline liquid, which is deleterious
material. If it does come in contact with your eyes, flush them
immediately with plenty of water and consult a physician, because
the alkaline liquid could cause becoming blind. Likewise, If the liquid
gets in your mouth, rinse immediately with plenty of water and
consult a physician. The alkaline liquid could also cause the skin
irritation and/or chemical burns. If the liquid adheres to the skin or
clothes, immediately flush it with plenty of water.
Never short-circuit the battery.
Do not allow the positive and negative terminals to short-circuit.
Never carry or store the battery with metal objects such as a
necklace or a hairpin. Do not take multiple batteries out of the
package and pile or mix them when storing. Otherwise, this could
lead to distortion, leakage, overheating, and explosion of the battery.
Never charge.
The battery is not designed to be charged by any other electrical
source. Charging could generate gas and internal short-circuiting,
leading to distortion, leakage, overheating, or explosion. It should
fundamentally not be used for backup applications as this may result
in it being charged.
Never expose to open flames.
Exposing to flames could cause explosion of the battery.
Never heat.
Heating the battery to more than 100 deg. C could increase the
internal pressure, causing distortion, leakage, overheating, or
explosion.
Never disassemble or deform the battery.
Disassembly or deforming of the battery could cause the leakage,
overheating, or explosion due to an internal short-circuits.
Safety Instructions
Improper handling of the battery could lead to distortion, leakage*, overheating, or explosion, causing bodily injury or equipment trouble.
Especially touch with liquid leaked out of battery could cause injury like a loss of eyesight. Please observe the following instructions to prevent
accidents.
(* Leakage is defined as the unintentional escape of a liquid from a battery.)
Never reverse the positive and negative terminals when
mounting.
Improper mounting of the battery may lead to short-circuiting,
charging or forced-discharging. This may cause distortion, leakage,
overheating, or explosion.
Never short-circuit the battery while installing into equipment.
Please be careful when installing the battery not to short-circuit it
with metal portions of the equipment.
Never weld the terminal or wire to the body of the battery
directly.
The heat of welding or soldering may cause distortion, leakage,
overheating, or explosion of the battery.
Never use different batteries together.
Using different batteries together, i.e. different type or used and new
or different manufacturer may cause distortion, leakage, overheating,
or explosion because of the differences in battery property.
Never leave the used battery in equipment.
Long time leaving in the equipment may generate gas leading to
distortion, leakage, overheating, or explosion and the equipment
may be damaged.
Remove the battery from equipment while not in use for a long
time.
Gas may be generated in the battery leading to leaking and
damaging of the equipment.
Primary Battery
Warnings — Handling Caution — Handling/Storage
Silver Oxide Battery/
LR Button Battery
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SR/LR
20.06
The battery may be regulated by national or local regulation. Please
follow the instructions of proper regulation. As electric capacity is
left in a discarded battery and it comes into contact with other
metals, it may lead to distortion, leakage, overheating, or explosion,
so make sure to cover the (+) and (–) terminals with friction tape or
some other insulator before disposal.
Never subject the battery to severe shock.
Dropping, or throwing or stomping on the battery may cause
distortion, leakage, overheating, or explosion.
Use the correct battery suitable for the equipment.
The battery may not be suitable for the specific equipment due to
the using conditions or type of equipment. Please select the suitable
battery according to the handling instructions of the equipment.
Keep contact force more than 2N.
The battery voltage may be lower than intended value because of
poor contact condition, please keep contact force more than 2N for
suitable contact.
Never use or leave the battery in a hot place such as under the
direct rays of the sun or in a car in hot weather.
If you do, this may cause distortion, leakage, overheating, and
explosion of the battery.
Never store the battery in a hot and humid environment.
Otherwise it may cause battery performance deterioration,
deformation, leakage, overheating, or explosion.
Never allow the battery to come in contact with water.
If it does, this may cause the battery to rust or lead to distortion,
leakage, overheating, and explosion.
Friction Tape
Battery
Example of battery insulation
+
–
Do not pile up or mix batteries.
Enlarged view
Electric current flows.
These batteries generate heat.
Caution — Disposal
Button-type silver oxide batteries are characterized by high-energy per unit volume and stable operating voltage. As a result, they are used as a
power source for applications such as quartz watches, and in recent years their use has expanded to medical devices and BLE devices.
Maxell is the first company in Japan to successfully market button-type silver oxide batteries and has many years of experience and know-how.
Also, in consideration of the environment, all products are designed to use zero mercury. For more information, please contact Maxell.
The button-type silver oxide battery uses silver oxide (Ag2O) as its
positive active material and zinc (Zn) as its negative active material.
Potassium hydroxide (KOH) (W-type) or sodium hydroxide (NaOH)
(SW-type) is used as an electrolyte.
Stable discharge characteristics
A discharge curve during discharge supplies a stable voltage until
the end of the discharge life.
High-energy density
A silver oxide battery’s high-energy density per unit volume provides
approx. twice the amount of energy capacity as button-type alkaline
batteries.
Excellent discharge load characteristics
Alkaline electrolyte is used to provide excellent discharge load
characteristics. Depending on the composition of the electrolyte, two
models are available; a low-drain type (SW type) for analog watches
and a high-drain type (W type) for multi-function watches (which
incorporate an alarm and a light), medical equipment, etc.
Superior leakage* resistance
Featuring Maxell's original leak-resistant processing, the SR battery
has excellent leakage resistance, which suppresses the electrolyte
from rising up and seeping out — a basic phenomenon of alkaline
electrolytes.
(* Leakage is defined as an unintended escape of liquid from a
battery.)
Taking environment in consideration
As one of its measures to reduce the environmental impact, Maxell
draws upon its original technology to realize longer-lasting, superior
leakage-resistant characteristics without using mercury and lead.
Battery reactions (Silver Oxide Battery)
Positive reaction Ag
2O+H2O+2e
-
2Ag+2OH
-
Neegtive reaction Zn+2OH
-
ZnO+H
2O+2e
-
Total reaction Ag
2O+Zn 2Ag+ZnO
Battery reactions (LR Button Battery)
Total reaction 2MnO
2+Zn+H2O → 2MnOOH+ZnO
SR: Silver Oxide Battery
Analog watches Digital watches Measuring instruments
Calculators Medical instruments BLE devices
LR: LR Button Battery
Toys LED lights Crime prevention buzzers
Medical thermometers
Negative Can
Negative Electrode (Zinc)
Absorber
Gasket
Separator
Positive Can
Positive Electrode (SR: Silver Oxide, LR: Manganese Dioxide)
Overview
Applications
Features Principle and Reactions
Construction
3
SR/LR
20.06
Button-type silver oxide batteries are characterized by high-energy per unit volume and stable operating voltage. As a result, they are used as a
power source for applications such as quartz watches, and in recent years their use has expanded to medical devices and BLE devices.
Maxell is the first company in Japan to successfully market button-type silver oxide batteries and has many years of experience and know-how.
Also, in consideration of the environment, all products are designed to use zero mercury. For more information, please contact Maxell.
The button-type silver oxide battery uses silver oxide (Ag2O) as its
positive active material and zinc (Zn) as its negative active material.
Potassium hydroxide (KOH) (W-type) or sodium hydroxide (NaOH)
(SW-type) is used as an electrolyte.
Stable discharge characteristics
A discharge curve during discharge supplies a stable voltage until
the end of the discharge life.
High-energy density
A silver oxide battery’s high-energy density per unit volume provides
approx. twice the amount of energy capacity as button-type alkaline
batteries.
Excellent discharge load characteristics
Alkaline electrolyte is used to provide excellent discharge load
characteristics. Depending on the composition of the electrolyte, two
models are available; a low-drain type (SW type) for analog watches
and a high-drain type (W type) for multi-function watches (which
incorporate an alarm and a light), medical equipment, etc.
Superior leakage* resistance
Featuring Maxell's original leak-resistant processing, the SR battery
has excellent leakage resistance, which suppresses the electrolyte
from rising up and seeping out — a basic phenomenon of alkaline
electrolytes.
(* Leakage is defined as an unintended escape of liquid from a
battery.)
Taking environment in consideration
As one of its measures to reduce the environmental impact, Maxell
draws upon its original technology to realize longer-lasting, superior
leakage-resistant characteristics without using mercury and lead.
Battery reactions (Silver Oxide Battery)
Positive reaction Ag
2O+H2O+2e
-
2Ag+2OH
-
Neegtive reaction Zn+2OH
-
ZnO+H
2O+2e
-
Total reaction Ag
2O+Zn 2Ag+ZnO
Battery reactions (LR Button Battery)
Total reaction 2MnO
2+Zn+H2O → 2MnOOH+ZnO
SR: Silver Oxide Battery
Analog watches Digital watches Measuring instruments
Calculators Medical instruments BLE devices
LR: LR Button Battery
Toys LED lights Crime prevention buzzers
Medical thermometers
Negative Can
Negative Electrode (Zinc)
Absorber
Gasket
Separator
Positive Can
Positive Electrode (SR: Silver Oxide, LR: Manganese Dioxide)
Overview
Applications
Features
Principle and Reactions
Construction