Lithium Mananee Dioide Rechareable Battery

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Lithium Mananee Dioide Rechareable Battery

Transcript Of Lithium Mananee Dioide Rechareable Battery

ML Lithium Manganese Dioxide Rechargeable Battery

Secondary Battery

LITHIUM MANGANESE DIOXIDE

RECHARGEABLE BATTERY

Safety Instructions

This battery contains lithium, organic solvents, and other combustible materials. For this reason, improper handling of the battery could lead to distortion, leakage*, overheating, explosion, or fire, causing bodily injury or equipment trouble. Please observe the following instructions to prevent accidents. (* Leakage is defined as the unintentional escape of a liquid from a battery.)

Warnings — Handling

í Never swallow. Always keep the battery out of the reach of infants and young children to prevent it from being swallowed. If swallowed, consult a physician immediately.

í Do not replace. Depending on the battery manufacturer, there might be major differences in performance even among the same types or models of batteries. If you are an equipment manufacturer and need to replace the battery, please use a new one of the same type and same model as the existing one. Because this is a rechargeable battery, its characteristics are completely different from a primary battery even though their shapes are alike. If a primary battery is installed in the circuit in place of a rechargeable battery, gas could be generated or the primary battery could be short-circuited by charging. This could lead to distortion, leakage, overheating, explosion, or fire. Please design your equipment so that the end user cannot replace the battery by mistake.

í Never use two or more batteries connected in series or in parallel.

If batteries are connected together, it is very difficult to design a circuit

to observe whether or not the batteries are charged at specified

M

voltage or current as described in "Warning -Circuit Design".

L í Never reverse the positive and negative terminals when mounting.

Improper mounting of the battery could lead to equipment trouble or

short-circuiting. This could cause distortion, leakage, overheating,

explosion, or fire.

í 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. Please be careful when installing the battery not to short-circuit it with metal portions of the equipment. Otherwise, this could lead to distortion, leakage, overheating, explosion, or fire.

í Never heat. Heating the battery to more than 100 deg. C could increase the internal pressure, causing distortion, leakage, overheating, explosion, or fire.
í Never expose to open flames. Exposing to flames could cause the lithium metal to melt, causing the battery to catch on fire and explode.
í Never disassemble the battery. Do not disassemble the battery, because the separator or gasket could be damaged, leading to distortion, leakage, overheating, explosion, or fire.
í Never weld the terminals or weld a wire to the body of the battery directly.
The heat of welding or soldering could cause the lithium to melt, or cause damage to the insulating material in the battery, leading to possible distortion, leakage, overheating, explosion, or fire. When soldering the battery directly to equipment, solder only the tabs or leads. Even then, the temperature of the soldering iron must be below 350 deg. C and the soldering time less than 5 seconds. Do not use a soldering bath, because the circuit board with battery attached could stop moving or the battery could drop into the bath. Moreover do not use excessive solder, because the solder could flow to unwanted portions of the board, leading to a short-circuit or charging of the battery.
í Never allow liquid leaking from the battery to get in your eyes or mouth.
Because this liquid could cause serious damage, if it does come in contact with your eyes, flush them immediately with plenty of water and consult a physician. Likewise, if the liquid gets in your mouth, rinse immediately with plenty of water and consult a physician.
í Keep leaking batteries away from fire. If leakage is suspected or you detect a strong odor, keep the battery away from fire, because the leaked liquid could catch on fire.
í Never touch the battery electrodes. Do not allow the battery electrodes to come in contact with your skin or fingers. Otherwise, the moisture from your skin could cause a discharge of the battery, which could produce certain chemical substances causing you to receive a chemical burns.

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LITHIUM MANGANESE DIOXIDE RECHARGEABLE BATTERY

Warnings — Circuit Design
í Never set the charge voltage above 3.3V. Charging at a higher voltage could cause the generation of gas, internal short-circuiting, or other malfunctions, leading to distortion, leakage, overheating, explosion, or fire. For details, see the recommended circuits below.

Fig. 1 Charge Property
100
Temp: 20deg.C FV = 2.0V
80
60

Recommended area

Recoverable ratio (%)

40
Prohibited area
20

0 2.5 2.6 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5
Charge voltage (V)

í Always charge at the nominal currents shown below. Large surges of current could degrade the battery’s characteristics, leading to distortion, leakage, overheating, explosion, or fire. To avoid excessive current at the initiation of charging, make sure to attach a protective resistor for current control. See the recommended circuits below.

Table 1 Nominal Charge Current by Model

Model

ML2032

Charge Current

2mA or lower

ML2016 2mA or lower

í Recommended circuits Please refer to the representative basic circuits shown below. If you have any questions about circuit design, please feel free to contact Maxell.

D

+

Voltage

Regulator

R GND

To 16V

(3.0-3.3V)

ML
– D: Diode, R: Resistor

Table 2 Example of resistors
Model Output Voltage of Voltage Regulator Load 3.1V 3.2V
ML2032 >550 ohm >600 ohm
ML2016 >550 ohm >600 ohm

(How to select a protective resistor for the current control) The maximum charge current flows in the battery when charged at an end voltage of 2V. Therefore, the value of the resistor is calculated using this equation: (R) >= ((Output Voltage of Voltage Regulator) – 2) / (Nominal Charge Current) For example, the S-812C series, which has a maximum input voltage of 18V, or the S-817 series with a maximum input voltage of 10V (Seiko Instruments Inc.) can be used as a voltage regulator. Note 1: If the main power source voltage is stable, the charge voltage can be allotted from main power source divided by the combination of resistors. Note 2: Because the battery height must be changed by charge and discharge cycle, place a minimum of 1mm space between the battery and device or chassis.
í Never over-discharge the battery. If the battery is over-discharged to below the specified voltage (2.0V), it may not be rechargeable.

Warnings — Disposal

The battery may be regulated by national or

Do not pile up or mix batteries.

Tape

local regulation. Please

follow the instructions of proper regulation. As electric capacity is left in a discarded battery and it

Enlarged view Electric current flows.


+ Battery

comes into contact with other metals, it could lead

(Example of battery insulation)

to distortion, leakage,

These batteries generate heat.

overheating, or explosion,

so make sure to cover the (+) and (–) terminals with friction tape or

some other insulator before disposal.

Caution — Handling/Storage
í Never expose the battery to ultrasonic sound. Exposing the battery to ultrasonic sound may cause short-circuiting because the inside material is broken into pieces, leading to distortion, leakage, overheating, explosion, or fire.
í Never subject the battery to severe shock. Dropping, throwing or stomping on the battery may cause distortion, leakage, overheating, explosion, or fire.
í 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.
í 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, explosion, or fire.
í 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, explosion, or fire.
í Never store the battery in a hot and humid environment. Otherwise it may cause battery performance deterioration, deformation, leakage, overheating, or explosion.

M L

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MSRL

Secondary Battery
Lithium Manganese

Dioxide

Rechargeable

Battery

Overview
The coin type lithium manganese dioxide rechargeable battery is a small, lightweight rechargeable battery. This battery employs specially treated manganese dioxide for the positive material and a lithium-aluminum compound for the negative material. A specially formulated organic electrolyte is also used, yielding excellent discharge characteristics with low self-discharge.

Features
í Approx. 2.5V operating voltage The operating voltage is about twice that of nickel cadmium rechargeable batteries. Displays a high discharge voltage of 2.8V when at 10% of nominal capacity (depth of discharge is 10% or less), when charged at 3.0 to 3.3V. í Superior charge/discharge cycle characteristics í Wide –20 deg. C to 60 deg. C usable temperature range Demonstrates stable operating voltage in temperatures as low as –20 deg. C and as high as 60 deg. C. í Low self-discharge and superior leakage resistance Self-discharge at 20 deg. C is no more than 2% per year. Supplies a nominal capacity of about 95% even when stored at 20 deg. C for roughly five years (according to accelerated test conducted by Maxell). And since organic electrolyte is used, the battery has superior leakage resistance. í Excellent floating characteristics A specially formulated organic electrolyte is employed to provide stable discharge characteristics even if charged for a year at 3.3V at 20 deg. C (according to accelerated test conducted by Maxell). í Excellent high rate discharge characteristics
Construction

Principle and Reactions

The coin type lithium manganese dioxide rechargeable battery is a 3V battery using specially treated manganese dioxide for the positive material, a lithium-aluminum compound for the negative material and a specially formulated organic electrolyte solution.

í Charge/Discharge reactions Charge
MnO2+(Li-A l) Discharge

LiMnO2+A l

UL (Underwriters Laboratories Inc.) Recognized Components
Recognized models: ML2032, ML2016 Certification Number: MH12568

Applications
b OA Machines (Fax, Copiers, Printers) b Notebook PCs b Desktop PCs b Camcorders b Digital Still Cameras b Watches b Medical Instruments, Cash Registers b FA Instruments (Measuring Instruments, Onboard Microcomputers,
Sensors) b Electronic Meters (Water, Gas, Electricity)

Collector

Negative Electrode

Negative Separator

Can (–)

Gasket

(+) Collector
Positive Electrode

Positive Can

Products

Model

ML2032

ML2016

Nominal voltage (V)

3

3

Nominal capacity (mAh)*1

65

25

M

Nominal discharge current (µA)

L Charge, discharge Discharge depth of 10%

cycle lifetime

Discharge depth of 20%

200
1,000 (6.5mAh discharge) (total capacity 6,500mAh)
300 (13mAh discharge) (total capacity 3,900mAh)

200
1,500 (2.5mAh discharge) (total capacity 3,750mAh)
500 (5mAh discharge) (total capacity 2,500mAh)

Operating temperature range (deg. C)

–20 to +60

Dimensions*2

Diameter (mm) Height (mm)

20

20

3.2

1.6

Weight (g)*2

3.0

1.8

*1 Nominal capacity indicates duration until the voltage drops down to 2.0V when discharged at a nominal discharge current at 20 deg. C. *2 Dimensions and weight are for the battery itself, but may vary depending on terminal specifications and other factors. • Data and dimensions are just reference values. For further details, please contact your nearest Maxell dealer or distributor.

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LITHIUM MANGANESE DIOXIDE RECHARGEABLE BATTERY

Characteristics (ML2032)

í Discharge Characteristics
Temperature: 20 deg. C
3.5

Voltage ( V )

3.0
240k⏲ 2.5

2.0

15k⏲

100k⏲

1.5 30k⏲

1.0 0

10

20

30

40

50

60

70

80

Discharge capacity (mAh)

í Relationship between Discharge Current and Duration Time
Discharge final voltage: 2V Temperature: 20 deg. C
104

Discharge duration time (days)

103

102

101

100 100

101

102

Discharge current (µA)

í Over Charge Characteristics
Discharge load: 15k⏲ Temperature: 20 deg. C
3.5

Voltage (V)

3 After charged at 3.3V for 20 days at 60 deg. C
2.5

2 1.5
0

Initial

100

200

300

400

500

Discharge duration time (h)

Rechargeable cycle number/cycles

í Charge/Discharge Cycle Performance
104 Temperature: 20 deg. C Charging voltage: 3.25V
103

102

101 0

20

40

60

80

100

Depth of discharge (%)

í Temperature Characteristics
Discharge load: 15k⏲
3.5

Voltage ( V )

3.0 20 deg. C
2.5 60 deg. C
2.0

1.5 1.0
0

–20 deg. C 0 deg. C

100

200

300

400

500

Discharge duration time (h)

í High Rate Discharge Characteristics
Temperature: 20 deg. C
3.5

3.0

Voltage (V)

2.5

2.0

1.5

4mA 3mA

2mA

1mA

1.0

0

10

20

30

40

50

60

70

80

Discharge duration time (h)

í Storage Characteristics
Discharge load: 15k⏲ Temperature: 20 deg. C
3.5

3.0

Voltage (V)

2.5 Initial
2.0

1.5
1.0 0

After stored for 60 days at 60 deg. C

100

200

300

400

500

Discharge duration time (h)

í Self-discharge Characteristics

100

Capacity retention ratio (%)

90

Storage temperature: 60 deg. C

80

Discharge temperature: 20 deg. C

Load: 15K⏲

70

60

M

50

L

0

50

100

150

200

250

Storage time (days)

(when accelerating 20 days at 60 deg. C equivalent to 1 year at 20 deg.C)

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MSRL Secondary Battery
External Dimensions with Terminals and Wire Connectors (unit : mm)

ML2032 T6

ML2032 T6 TUBE

ML2032 T14

ML2032 T25

Insulation sleeve

4.5

4.5

4 8.5 0.75 10.16

0.75 10.16 ø20

ø20

ø20

ø20

7.5 4 4.8

4

20.3

4

4

4.1

4.5

4.5

(–)

(+)

20.5

0.2

1.8

0.75

4

21

4

4

4 4.8 4.5

4.1

4.5

(–)

(+)

20.5

0.2

1.8

0.75

4

4

4.5

5.1

4

20.3

(–)

(+)

0.2

15.24

20.3

4 1.3

(–)

(+)

0.75

0.2

4

18.05

ML2032 T32
Insulation sleeve

ML2032 T17
ø20

ML2032 T26

Insulation sleeve

ø20

Actual appearance ML2032 WK

Actual appearance

Insulation sleeve

22

80

ø20

4.5 4.5
ø20

0.75

4

4.8

4

(–)

(+)

0.2

25.4

(+)

(–)

4

(+)

(–)

1.8

0.75 0.2

0.2

4

4

3.7

10.5

3

4.5

4.0

(+)

(–)

0.2

7.5

0.75

10.16

3.7

(+)

(–) 4.0

Actual appearance

7.5

20.2

(–) (+)
(+) Hook Loop
(–)
Lead wire
Housing: HNC2-2.5S-4 (Hirose) Contact: HNC-2.5S-C-B (02) (Hirose) Lead wire: AWG26 UL1007

20.2

ML2032 WK2
Insulation sleeve
34
(+) (–)

ML2016 T6

ML2016 T25
Insulation sleeve

ø20

0.75 10.16

ML2016 T17
4.5
Insulation sleeve
ø20

65 (+)
(–)
(–) (+)
Lead wire Housing: ZHR-2 (JST) Contact: SZH-002T-P0.5 (JST) Lead wire: AWG26 UL1571

4

21

4

4 3.2 4.5

(–)

(+)

0.75

20.5

0.2

1.8

20.3

2.9

4

(–) 0.75 4

18.05

(+) 0.2

4 8.5

4.5

(+)

(–)

1.8

0.75

4

4

10.5

0.2

0.2

2.1

Actual appearance

43

ML2016 T26

M

ø20

Insulation sleeve

L

: Horizontal & Through hole Type
: Vertical & Through hole Type
: Wire connector Type

4.5

4

10.16

0.75 (+)

(–) 4

: Tin plating
0.2 2.1

Actual appearance

The above are examples. Processing to meet customer requests is possible.

Visit our website for more information http://biz.maxell.com/en/ Go to: Products > Rechargeable Batteries > ML (Coin Type Lithium Manganese Dioxide Rechargeable Battery)

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