20.06

LITHIUM-ION RECHARGEABLE BATTERY

Li-ion

Prismatic Lithium-ion

Rechargeable Battery

Danger

 Do not dip or wet the battery in water, seawater, or other liquid.

Otherwise the battery may be shorted, which may generate heat

or cause damage.

 Do not put the battery into a fire. Otherwise, the electrolyte may

burn or cause an explosion.

 Do not heat the battery. Otherwise the electrolyte may gasify and

resin parts may melt, causing leakage, explosion or fire.

 The battery has a predetermined polarity. If the battery will not

connect well to the charger or equipment, do not try to connect

the battery forcefully. Check the polarity first. If the battery is

connected in reverse, it will be charged in reverse and may cause

leakage, heat generation, explosion or fire due to an abnormal

chemical reaction.

 Do not connect the battery in reverse relation to the positive (+)

and negative (–) terminals in the charger or equipment. If the

battery is connected in reverse, it will be charged in reverse,

discharge excessive current and may cause heat generation,

explosion or fire due to an abnormal chemical reaction.

 Do not let the battery terminals (+ and –) come into contact with a

wire or any metal (like a metal necklace or a hairpin) with which it

is carried or stored. In such a case, the battery will be shorted and

discharge excessive current, which may result in heat generation,

explosion or fire.

 Do not apply any heavy impact to the battery, throw or drop it.

Otherwise the battery may be shorted and result in heat

generation, explosion or fire.

Improper use of the battery may cause heat, fire, explosion, damage or

reduced battery capacity. Please read and follow the handling instructions

for the battery before and during usage. The followings are general

cautions and guidelines only and as such may not include every possible

usage scenario. The manufacturer will not be liable for actions taken or

accidents caused.

Secondary Battery

Start charge

Constant current, constant voltage charge

• Voltage monitoring

• Current monitoring

• Temperature monitoring

• Time monitoring

Failed

Passed

Select the correct type of battery to match the operating conditions

such as load current, etc.

 The information in this section is for lithium-ion cells only. Maxell

offers these cells (excluding CLB) in battery pack format only.

These include electronic circuits to prevent overcharge,

overdischarge and so on. These battery packs are

custom-developed and produced according to special

requirements regarding operating conditions and specifications.

As a result, a minimum number of units may apply to such

customized orders from customers purchasing battery packs. For

details, consult your nearest Maxell dealer or distributor.

 Charge conditions

To get the most out of lithium-ion batteries and use them safely,

please read the following requirements carefully:

 Charge control flowchart (sample)

Refer to the following flowchart when designing constant

current and constant voltage battery chargers.

Charge mode

Constant current, constant voltage charge (CCCV)

Charge voltage

4.20±0.05V / cell, 4.35±0.05V / cell, 4.40±0.05V / cell

Max. charge current

Charge temperature 0 to +45 deg. C

Check battery connection

Check battery temperature

Check battery voltage

Charge completion

Preliminary charge

Abnormal charge stop

Notes for Designers Safety Instructions

Li-ion

20.06

• Insulate (+) and (–) terminals with tape.

• Do not remove coating.

• Do not expose to rain or water.

• Do not disassemble.

• Do not leave under strong sunshine.

• Store in rugged receptacle and cover with a lid.

Charge 0 deg. C to

45 deg. C

Discharge

20 deg. C to

60 deg. C

Storage (less than 30 days)

20 deg. C to

50 deg. C

Storage (less than 90 days)

20 deg. C to

35 deg. C

Notes for treating used batteries

 Do not drive a nail into, hammer or stamp on the battery.

Otherwise the battery may be shorted and result in heat

generation, explosion or fire.

 Do not solder the battery directly. Heat applied during soldering

may melt resin parts such as separator or gasket, and result in

leakage, heat generation, explosion or fire.

 Do not disassemble or alter the battery. Otherwise the battery may

be shorted and result in heat generation or fire.

 Do not use or leave the battery near fire, heaters, inside an

automobile in hot weather or under strong sunshine. Such

conditions of high temperature may damage the separator, and

the battery may be shorted and result in heat generation,

explosion or fire.

 When charging the battery, do not use any battery charger not

specified by the manufacturer. Always follow the charge

conditions specified by the manufacturer. If the battery is charged

under other conditions (a high temperature, a high voltage/current

or an altered charger) not specified by the manufacturer, the

battery may cause heat generation, explosion or fire due to

abnormal chemical reactions.

 Do not connect the battery directly to an electric outlet or cigarette

lighter socket in a car. Applying a high voltage may generate an

excessive current and cause an electric shock. In such a case, the

battery may leak electrolyte, overheat, explode or cause fire.

 Do not put the battery in a microwave oven or a pressure cooker.

Sudden heat may damage the seal of the battery and may cause

heat generation, explosion or fire.

 Do not use the battery together with a primary battery such as a

dry battery or other battery of a different capacity, type and/or

brand. In such a case, over-discharge during use or over-charge

during charging may occur and abnormal chemical reactions may

cause heat generation, explosion or fire from the battery.

 If you notice any unusual odor, heat, discoloration, deformation or

any other characteristic apart from what you are used to while

using, charging or storing the battery, then take it out of the

equipment or charger, and avoid using it. Using it in such state

may result in heat generation, explosion or fire.

 If the battery leaks or emits an unusual odor, remove it from the

vicinity of any fire immediately. The electrolyte may catch fire,

which may cause heat generation or explosion.

 Do not let leaked electrolyte come into contact with the eyes. In

the event of such contact, flush the eyes with plenty of water

immediately and consult a doctor. Otherwise prolonged contact

may cause serious injury.

 If the battery leaks and its electrolyte comes into contact with skin

or clothes, wash the contact area well with tap water or other

clean water right away. Otherwise skin may break out in a rash.

 When the battery is expected not to be used for a long time, take

the battery out of the equipment or device and store it in a less

humid area.

 After long periods of storage without being used, the battery

should be charged before it is used. Charge the battery every 6

months to the level specified by the manufacturer, even if the

battery is not used.

 Do not leave the battery pack connected to the charger. It may

cause the degradation of battery performance, such as a

shortening of battery life.

 Turn off your equipment or device power switch after use.

 Remove the charged battery from the charger.

 Do not recharge without using a charged battery (without

discharging at all). The battery may swell.

 Do not use the battery in other than the following temperature

ranges:

Warnings

Caution

Li-ion

20.06

0 120 30024060 180

4.5

4.0

3.5

3.0

2.5

2.0

0 1000 30002000 50004000

25 deg. C

–20 deg. C

60 deg. C

–10 deg. C

0 500 1000 45001500 2000 2500 35003000 4000

5000

4000

3000

2000

1000

 Thin battery with high capacity

Maxell’s original technologies, such as electrode technology, have

realized thin batteries with high capacity that can be used in

compact high-performance mobile devices.

 Stable discharge under various temperature conditions

Lithium-ion batteries provide stable discharge within a wide range of

temperatures, between –20 deg. C and 60 deg. C.

 Excellent cost performance

Superior recharging properties ensure a service life of about 500

charge/discharge cycles under normal usage conditions. The

superior cost/performance ratio ensures that lithium-ion batteries are

ultimately more economical than primary batteries.

 Higher energy density and an operating voltage of over 3.7V

A lithium-ion battery delivers and maintains a stable operating

voltage of over 3.7V until final discharge — three times as much

voltage as an Ni-Cd or Ni-MH battery provides. Therefore, it takes

only one-third as many lithium-ion batteries to provide the equivalent

amount of voltage as Ni-Cd or Ni-MH batteries provide. This means

that portable devices can be made much smaller and lighter.



Charge characteristics



Discharge load characteristics



Discharge temperature characteristics



Cycle life characteristics

 Mobile phones, Smartphones  Portable game devices

 Electronic books  Electronic dictionaries

 Digital still cameras  Digital audio players, etc.

Cell voltage (V)

Time (min)

100

Charge capacity (%)

Charge current (mA)

Cell voltage (V)

Capacity (mAh)

Cell voltage (V)

Capacity (mAh)

Features

Cell Structure

Applications

Characteristics (ICP616180AWR)

Laser seal

Negative terminal

Gas release vent

Positive can

Separators

Positive electrode

Negative electrode

Cycle number (cycle)

Capacity (mAh)

Charge current

Cell voltage

Charge: 4020mA (1I

A)/4.4V (CCCV)/3h

Temperature: 25 deg. C

Charge capacity

4.5

4.0

3.5

3.0

2.5

4.5

4.0

3.5

3.0

2.5

Charge: 4020mA (1I

A)/4.4V (CCCV)/3h

Discharge: 0.2I

A, 1I

A (E.V. = 2.75V)

Temperature: 25 deg. C

0 100 200 300 400 500

2.5

Charge: 4020mA (1I

A)/4.4V (CCCV)/3h

Discharge: 804mA (0.2I

A) (E.V. = 2.75V)

Temperature: 25 deg. C

0.2I

A (804mA)

A (4200mA)

500

2000

1000

1500

2500

3000

3500

4500

4000

Charge: 4020mA (1I

A)/4.4V (CCCV)/3h

Discharge: 4020mA (1I

A) (E.V. = 2.75V)

Temperature: 25 deg. C