ETC CR18250

Lithium Manganese Dioxide
CR18250
I
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ST
FI
RM
BSI
E RED
BRIEF SPECIFICATION
Model: CR18250
Nominal Voltage: 3.0V
Nominal Capacity: 750mAh
Standard Discharge Current: 10mA
Weight: 14g
Stainless steel container
ISO9002 Certified
Non dangerous for transportation
CONTENTS
1. General Information
1.1
1.2
1.3
Advantages for EEMB Lithium Manganese Dioxide cells
Construction of Lithium Cells
Characteristics and Applications
2. CR Primary Lithium Cells
2.1
2.2
Technical Data
CR Primary Lithium Cylindrical Cell Performance Data
3. General Design Characteristics
3. 1
3.1.1
3.1.2
3.1.3
3.1.4
3.1.5
3.2
3.3
Safety Tests
Compression Test 1120 kg
in short circuit condition 24 H, 0.1¦¸
Test at 150¡ãC for 2 hours.
Puncture Test total penetration of the cell by a nail §æ3mm
Vibration Test
Safety Guidelines
Transportation of EEMB Lithium Cells
1. General Information
The EEMB
Lithium Manganese Dioxide cell chemistry was one of the first solid
cathode cells commercially developed and is still the most widely used system
today. These cells offer an excellent shelf life, good high-rate and low-rate
capability, a wide operation temperature range and availability in cell designs.
Potential design-in applications for these products are electronic,
telecommunication, metering, instrumentation, office and other portable equipment
use. Based on the outstanding cell performance and reliability of these produces,
they have been able to meet and exceed the requirements of our customer base
worldwide.
1.1 Advantages for EEMB Lithium Manganese Dioxide cells:
High open circuit and load voltage: 2.8-3.2 volts per cell.
High energy density: 270Wh/kg and 510Wh/l.
Outstanding operational temperature range: -40 C to +70¡ã
C
Flat discharge profile under low to medium rate applications.
Low self-discharge: less than 1% per year at RT.
Superior shelf life and operational life: up to 10 years.
Ability to provide a variety of laser welded termination tabs for all cells.
Safe and environmentally friendly.
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1.2 Constructions of Lithium Cells
EEMB offers a complete range of primary lithium manganese dioxide cylindrical
cells for memory backup and portable applications worldwide.
The cylindrical cell configurations, offer the high-capacity bobbin construction and
high-power spirally wound product. The bobbin construction is targeted at low to
moderate power requirements, dedicated for applications requiring up to a 10 year
operational life at 20¡ãC . Our spirally wound constructional product offers high-rate
discharge capability, with an operational life in excess of 5 years.
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Lithium Cylindrical Batteries
Insulation Disk
Neg.collector
Sealing
Lid
Laser Welding
Electrolyt
Neg.Contact
Lithium
Fig.2
Bobbin construction
Schematic construction of
a Li/MnO2 cylindrical cell
(CR 1/2AA)
M nO 2 R i ng
Separator
Pos.Contact
Positive Cap
PTC Device
Lid
Positive Tab
Anode (Lithium)
Electrolyte
+Separator
Fig.3
Spiral construction
Schematic construction of
a Li/MnO2cylindrical cell
(CR 123A)
Cathode (Mn02 )
Negative Tab
Negative Can
Insulator Plate
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1.3 Characteristics and Applications
Main Applications
Both mechanical and electrical properties, together with reliability, ensure that
EEMB lithium batteries meet the requirements of modern electronics. They are
therefore ideally suited as power sources for the long term supply of
microelectronic circuitry.
Main Characteristics
Long life expectancy and long operational life.
Low self discharge rate
High energy density
High cell voltage: 3 V
Wide temperature range
High operating Safety
High reliability
Resistance to corrosion
No leakage problems
2. CR Primary Lithium Cells
2.1 Technical Data
Model
Nominal
Voltage(v)
Nominal
capacity
(mAh)
CR 18250
3.0
750
Pulse
Standard
Continuous
discharge
discharge
discharge
current (mA) current (mA) current (mA)
10
300
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500
2.2 CR Primary Lithium Cylindrical Cell Performance Data
25.0mm
CR18250
CR18250
18.0mm
NOMINAL VOLTAGE (V)
NOMINAL CAPACITY (mAh)
STANDARD DISCHARGE CURRENT(mA)
MAX. DISCHARGE CURRENT(mA)
CONTINUOUS
PULSE
DIAMETER (mm)
HEIGHT (mm)
WEIGHT (g)
3.0
750.0
10
300
500
18.5
25.0
14.0
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Continuous Discharge At 20 O C
4.0
Voltage (V)
3.0
2.0
250mA
50mA
100mA
1.0
0.0
0
2
6
4
8
12
10
16
14
Discharge time (Hour)
Capacity Remained Rate (%)
Storage Characteristic (20 o C)
110
100
90
TEST CONDITIONS 10mA 2.0V
80
70
60
50
0
2
4
6
8
10
Storage Year
High Temperature Pulse Discharge Curve 85 O C
3.0
Voltage (V)
2.5
Test Conditions
Temperature: 85 C
Discharge Current
200mA Pulse
Pulse ON 1 Min
Pulse OFF 1 Min
O
2.0
Pulse on
Pulse off
100Cycles
1.5
1.0
50
0
100
200
150
300
250
350
Time (Min)
O
High Temperature Pulse Discharge Curve 45 C
3.0
Voltage (V)
2.5
2.0
Pulse on
Pulse off
Test Conditions
Temperature: 45 C
Discharge Current
200mA Pulse
Pulse ON 1 Min
Pulse Off 1 Min
100 Cycles
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1.5
1.0
50
0
100
200
150
350
300
250
Time (Min)
Nominal Temperature Pulse Discharge Curve (20 oC)
Voltage (V)
3.0
2.5
Test Conditions
2.0
Discharge Pulse
Pulse on Pulse off Current 250mA
Pulse On 33 Seconds
Pulse Off 2 Seconds
End Voltage 1.5V
Total Cycles 313
1.5
1.0
0
20
40
60
80
100
120
140
160
180
Time (Min)
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3. General Design Characteristics
In order to ensure optimum battery performance for the primary CR cylindrical cells,
we suggest consideration of the following design-in requirements. They are the
nominal and operating voltage, load current and profile, the duty cycle,
temperature requirements and shelf life for the application. These characteristics
for each battery type must be evaluated against the design requirements to select
the most appropriate product that fulfills these requirements.
3. 1 Safety Tests
3.1.1 Compression Test 1120 kg
No significant electrolyte loss
No rupturing
3.1.2 In short circuit condition 24 H, 0.1¦¸
After 24 hours the bottom of the cell is curved by only 0.1mm; diameter
unchanged.
No electrolyte creepage or loss.
No rupturing.
3.1.3 Test at 150¡ã for 2 hours.
C creepage or loss
No electrolyte
No rupture
No fire
No explosion
Open circuit voltage almost unchanged at 3.2 V
The cell base bowed, causing cell height to increase by 1 mm, diameter
unchanged.
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3.1.4 Puncture Test total penetration of the cell by a nail §æ3mm
No splashing or pressurized electrolyte loss.
No rupturing.
3.1.5 Vibration Test
Amplitude at frequency range: 5 to 55 Hz: ¡À0.75mm
Frequency Range: 5Hz 55Hz 500Hz 55Hz 5Hz
Acceleration at frequency range: 55 Hz to 500 Hz: 100m/s
Cycle duration:15min
Oscillation time of each main axis:3 h.
Without changing of the electrical values of CR 1/2 AA, CR2/3 AA, CRAA.
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3.2 Safety Guidelines
Safety and Handling Issues
We recommend that attention begins to the design and implementation of our
lithium-Manganese Dioxide cells to ensure superior operating performance. With
our Lithium-Manganese Dioxide Batteries, the appropriate precautions must be
taken to avoid physical and electrical abuse otherwise, the batteries can be
hazardous if not used properly. To avoid such incidents, we would suggest you
review the following safety and handling precautions for your potential applications:
1.Do not heat. Nor dispose of in fire.
If heated the plastic materials in the cell such as the gasket and separator may be
damaged, causing leakage. The heat generated by a short circuit inside the
batteries may lead to bursting or combustion. If disposed of in fire, batteries my
violently rupture.
2.Do not charge (Lithium Primary Battery CR Series).
When a Lithium Primary Battery is charged, gas is generated inside the battery and
can result in swelling, heat generation, leakage, violent rupture or potential fire.
3.Avoid forced discharge.
When batteries are force-over discharged with an external power source, the
voltage drops to under 0.0 V (reverse electrode), and inner gas is generated. This
can lead to swelling, heating, leakage violent rupture and / or potential fire.
4.Do not short circuit.
If the positive and negative terminals come into contact with each other or with a
metal object, this can cause a short circuit, generating heat. If the batteries are
stacked on top of each other or mixed, the resulting short-circuit can lead to heat
generation, leakage, violent rupture or fire.
5.Do not disassemble, apply excessive pressure or deform.
If a battery is forcefully disassembled, gas may be generated which may cause
throat irritation, or the lithium metal may generate heat, causing fire. If deformed
under pressure or under impact, distortion of the seal may lead to leakage, or a
short circuit inside the battery may lead to potential safety hazards.
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7.Observer the (+) and (-) polarity.
If the batteries cell polarity is reversed by inserting the battery backwards,
depending on the equipment, a short circuit or over discharging may result a
potential safety hazard.
Are used. If swallowed by mistake, consult a doctor immediately.
8.Do not swallow
store batteries in a safe location, out of the reach of babies and small children. Also,
make sure that batteries can not be easily removed from equipment in which they
9.Do not throw into the water.
This can result in corrosion and the generation of combustible gas.
10.Do not store in direct sunlight or rain.
Store batteries in a place not subject to direct sunlight. Make sure the area is dry
and is approximately 20¡ãC. Storage in areas with higher temperature, humidity or
exposure to rain may cause deterioration in battery quality and durability.
11.Soldering.
Do not solder or weld directly to the cells surface. Use preassembled cells with tabs
or leads.
3.3 Transportation of EEMB Lithium Cells
Lithium cells are considered non-dangerous if each battery with a solid cathode
contains 1 gram or less of lithium and are therefore not subject to national or
international dangerous goods regulations for transport by road, rail, sea, or air,
provided that
1.Batteries are separated so as to prevent short circuits.
2.Batteries are packed in strong packaging, except when installed in electronic
devices.
3.Details of specific transport regulations are available on special request.
All EEMB Lithium Cells listed above contain less than 1.0 gram of Lithium and, as
long as they are packed as above, are therefore not subject to the dangerous goods
regulations.
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4.Tabs
EEMB Company Limited can provide following tabs and leads with the battery,
Custom design welcomed.
Figure 1
L
H1
D
Black
Red
D
6
Figure 2
H1
Figure 3
L
H1
D
Black
Red
H1
5
4
5
4
D
Figure 4
0.3
H2
0.75
0.75
H1
D
5
5
Figure 5
0.2
0.2
0.75
7.45
H2
0.75
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