Secondary Battery
Coin Type Lithium-ion CLBRechargeable Battery COIN TYPE LITHIUM-ION RECHARGEABLE BATTERY (CLB)
NotesNotes for for Designers Designers or accidents caused. (* Leakage is defined as the unintentional escape of a liquid from a Select the correct type of battery to match the operating conditions battery.) such as load current, etc. Danger í Charge conditions To get the most out of coin type lithium-ion batteries and use them í Do not dip or wet the battery in water, seawater, or other liquid. safely, please use specified charge IC, protection IC and read the Otherwise the battery may be shorted, which may generate heat following requirements carefully: For different charge IC, protection or cause damage. IC, consult your nearest Maxell dealer or distributor. í Do not put the battery into a fire. Otherwise, the electrolyte may Charge conditions burn or cause an explosion or fire. Charge IC Specified IC by Maxell í Do not heat the battery. Otherwise heating the battery could Charge method Constant current, constant voltage charge increase the internal pressure, causing leakage, explosion, Charge voltage 4.20±0.05V / cell overheating or fire.
Standard charge current 0.5ItA í The battery has a predetermined polarity. If the battery will not connect well to the charger or equipment, do not try to connect Max. charge current 1.0ItA the battery forcefully. Check the polarity first. If the battery is Charge temperature 0 to +45 deg. C connected in reverse, it will be charged in reverse and may cause Protection conditions distortion, leakage, overheating, explosion or fire due to an abnormal chemical reaction during charge or an excessive current Protection IC Specified IC by Maxell during discharge.
í Charge control flowchart (sample) í Do not let the battery terminals (+ and –) come into contact with a Refer to the following flowchart when designing constant current and wire or any metal (like a metal necklace or a hairpin) with which it constant voltage battery chargers. is carried or stored. In such a case, the battery will be shorted and discharge excessive current, which may result in overheating, Start charge explosion, fire or heat generation of the metal necklace or the Check battery connection hairpin.
Check battery temperature í Do not apply any heavy impact to the battery, throw or drop it. Do Failed not apply heavy load to the battery causing distortion. Otherwise Check battery voltage Passed Preliminary charge the battery may be shorted and result in leakage, overheating, explosion or fire. Constant current, constant voltage charge • Current monitoring Failed í Do not drive a nail into, hammer or stamp on the battery. • Temperature monitoring • Time monitoring Otherwise the battery may be shorted and result in destruction, Passed Abnormal charge stop distortion, overheating, explosion or fire. Charge completion í Do not weld a terminal or weld a wire to the body of the battery directly. The heat of welding or soldering could cause damage to the insulating material or the structure in the battery, leading to Safety Instructions distortion, leakage, overheating, explosion, or fire. When soldering The battery contains organic solvents and other combustible the battery directly to equipment, use the battery with tabs or materials. For this reason, improper handling of the battery could leads and solder only the tips of the tabs or leads. Do not use a lead to distortion, leakage*, overheating, explosion or fire, causing soldering bath, because the circuit board with battery attached bodily injury or equipment trouble. Please observe the following could stop moving or the battery could drop into the bath. instructions to prevent accidents. The following are general cautions Moreover do not use excessive solder, because the solder could and guidelines only and as such may not include every possible flow to unwanted portions of the board, leading to a short-circuit usage scenario. The manufacturer will not be liable for actions taken or charging of the battery by connecting to power source.
20.06 1 CLB
Please consult Maxell in advance for information about soldering í If the battery leaks or emits an unusual odor, remove it from the conditions. vicinity of any fire immediately. The electrolyte may catch fire, which may cause explosion or fire. í Do not disassemble or alter the battery. Otherwise the insulating materials or the inside structure could be damaged, leading to í Do not let leaked electrolyte come into contact with the eyes. In distortion, leakage, overheating, explosion or fire. the event of such contact, flush the eyes with plenty of water immediately and consult a doctor. Otherwise prolonged contact í After long periods of storage without being used, the battery may cause serious injury. should be charged before it is used. Charge the battery every 6 months to the level specified by the manufacturer, even if the í When charge does not stop in an expected period of time, stop battery is not used. Otherwise over-discharging the battery may charging. Otherwise the battery may cause overheating, explosion cause an abnormal chemical reaction in the battery and result in or fire. the degradation of battery performance, such as a shortening of battery life, distortion, leakage, overheating or fire. í When charging the battery, always follow the charge conditions Caution specified by the manufacturer. If the battery is charged under í Use protection circuit in the application or a battery pack in order other conditions (a high temperature, a high voltage/current or an to prevent over-charge or over-discharge. Excess charge current altered charger) not specified by the manufacturer, the battery or charge voltage may cause distortion, leakage, overheating, may cause distortion, overheating, explosion or fire due to explosion or fire. abnormal chemical reactions. í Do not allow the battery electrodes to come in contact with your í Do not connect the battery directly to an electric outlet or cigarette skin or fingers. Do not stick the battery on skin with adhesive tape lighter socket in a car. Applying a high voltage may generate an or glue. Otherwise the moisture from your skin could cause a excessive current and cause an electric shock. In such a case, the discharge of the battery, which could produce certain chemical battery may leak electrolyte, overheat, explode or cause fire. substances causing you to receive chemical burns. Do not use or leave the battery near fire, heaters, inside an í í Please be careful when installing the battery not to short-circuit it automobile in hot weather or under strong sunshine. Such with metal portions of the equipment. Otherwise this could lead to conditions of high temperature may damage the separator, and distortion, leakage, overheating, explosion or fire. the battery may be shorted and result in overheating, explosion or fire. í Keep the contact force at more than 2N for stable contact. Otherwise the battery voltage may be lower than intended value í Do not use the battery with any equipment or device other than due to poor contact condition. those specified by the manufacturer. Any such practice may expose your equipment or device to an abnormal current, which í Do not use or leave the battery in a hot and highly humid place may result in distortion, overheating, explosion or fire. such as under the direct rays of the sun or in a car in hot weather. It may cause distortion, leakage, overheating, explosion or fire. Warnings í Do not leave the battery or battery pack being charged after charge is finished. Otherwise it may cause the degradation of í Do not swallow. Always keep the battery out of the reach of battery performance, such as a shortening of battery life. infants and young children to prevent it from being swallowed. If When the battery is expected not to be used for a long time, take swallowed, consult a physician immediately. Swallowing may lead í the battery out of the equipment or device and store it in a less to burns, perforation of soft tissue, and death. Severe burns can humid area. occur within 2 hours of ingestion. í Do not use the battery in other than the following temperature í Do not put the battery in a microwave oven or a pressure cooker. ranges: Sudden heat may damage the seal of the battery and may cause overheating, explosion or fire. Charge 0 deg. C to +45 deg. C í Do not use the battery together with a primary battery such as a Discharge 20 deg. C to +60 deg. C dry battery or other battery of a different capacity, type and/or Storage (less than 30 days) 20 deg. C to +50 deg. C brand. In such a case, over-discharge during use or over-charge during charging may occur and abnormal chemical reactions may Storage (less than 90 days) 20 deg. C to +35 deg. C cause heat generation, explosion or fire from the battery. í Design your equipment so that the end user cannot replace the battery by mistake. If you are an equipment manufacturer and Warnings — Disposal need to replace the battery, please use a new one of the same The battery may be Do not pile up or mix type and same model as the existing one. Because this is a Tape regulated by national or batteries. rechargeable battery, its characteristics are completely different local regulation. Please from other primary batteries (e.g. coin type lithium manganese follow the instructions of dioxide batteries: CR) or other secondary batteries (e.g. lithium – proper regulation. As manganese dioxide rechargeable batteries: ML) even though their Enlarged view + electric capacity is left in shapes are alike. If a different battery is installed in the circuit in Electric current flows. Battery a discarded battery and it place of a CLB battery, gas could be generated or the primary comes into contact with battery could be short-circuited by charging. This could lead to (Example of other metals, it could lead battery insulation) distortion, leakage, overheating, explosion or fire. to distortion, leakage, These batteries generate heat. í If you notice any unusual odor, heat, discoloration, deformation or overheating, or explosion, any other characteristic apart from what you are used to while so make sure to cover the (+) and (–) terminals with friction tape or using, charging or storing the battery, then take it out of the some other insulator before disposal. equipment or charger, and avoid using it. Using it in such state 20.06 may result in overheating, explosion or fire. 2 CLB
Please consult Maxell in advance for information about soldering conditions.
Overview
Developed by Maxell, the coin type lithium-ion rechargeable battery has a high-rate discharge characteristic of up to 2ItA by means of an original stacked electrode structure. This compact high-power rechargeable battery is designed for small portable devices such as IoT devices, wearables and hearables that have communication functions. Features Applications í High power b Biological information monitoring systems A unique stacked electrode structure enables power of up to 140mA b Wearable data devices b Medical sensor networks (CLB2032). b Environment monitoring systems b Logistics management systems b Rechargeable hearing aids í Discharge capability of CLB2032 is approximately 40 times Remote keyless entry systems (RKE) Multifunction watches better* b b * Compared with Maxell’s CR2032 at 60% available capacity Products í Excellent cost performance Superior recharging properties ensure a service life of about 500 Model CLB2032 CLB2016 CLB937A CLB740H charge/discharge cycles under normal usage conditions. The Initial Diameter 20 20 9.5 7.85 superior cost/performance ratio ensures that lithium-ion batteries are dimensions *1 Height*2 3.45 2.0 3.9 4.0 ultimately more economical than primary batteries. (mm) Weight (g)*1 3.0 2.1 0.7 0.5 High reliability í Max. voltage (V) 4.2 4.2 4.2 4.2 Maxell has incorporated unique technologies gained during its Charge Standard current (mA) 35 15 9 9.5 development of crimping and electrode coating. The stainless steel (CCCV) Temperature (deg. C) 0 to 45 battery body minimizes swelling. End voltage (V) 3.0 3.0 3.0 3.0 Discharge í Superior safety Max. current (mA) 140 60 36 19 Separator-wrapped positive electrodes prevent to make internal (CC) Temperature (deg. C) 20 to 60 short-circuit. Safety is ensured even if external short-circuit occurs. Nominal voltage (V) 3.7 3.7 3.7 3.8 Certification Nominal capacity (mAh)*3 70 30 18 19*4 *1 Dimensions and weight are for the battery itself, but may vary depending on • UL 1642 Recognized models (Technician Replaceable): CLB2032, terminal specifications and other factors. CLB2016, CLB937A, CLB740H *2 100% charged *3 Nominal capacity is according to the following conditions: Charge: 0.5 ItA/4.2V Certification Number: MH12568 (CCCV)/End current 0.03ItA, Discharge: 0.2ItA/E.V. = 3.0V, Temperature 20 deg. C • IEC 62133-2 Recognized models: CLB2032, CLB937A, CLB740H *4 Nominal capacity is according to the following conditions: Charge: 0.5ItA/4.2V • UN 38.3 (Dangerous goods transportation regulations) (CCCV)/End current 0.03ItA, Discharge: 1mA/E.V. = 3.0V, Temperature 20 deg. C • Data and dimensions are just reference values. For further details, please contact Recognized models: CLB2032, CLB2016, CLB937A, CLB740H your nearest Maxell dealer or distributor.
Characteristics (CLB2032) í Charge characteristics í Discharge temperature characteristics 100 50 4.5 4.4 Charge: 35mA (0.5ItA)/4.2V (CCCV)/End current 2mA 60 deg. C Discharge: 14mA (0.2ItA) (E.V. = 3.0V) Cell voltage 4.2 40 4.0 20 deg. C 4.0 0 deg. C 30 3.5 –10 deg. C 3.8 –20 deg. C 50 20 3.0 3.6 Cell voltage (V) Charge capacity Cell voltage (V) Charge current 3.4 Charge current (mA) Charge capacity (%) 10 2.5 Charge: 35mA (0.5ItA) /4.2V (CCCV)/ 3.2 End current 2mA Temperature: 20 deg. C 0 0 2.0 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 10 20 30 40 50 60 70 80 Time (hour) Capacity (mAh) í Discharge load characteristics í Cycle life characteristics 4.4 80 Charge: 35mA (0.5ItA)/4.2V (CCCV)/End current 2mA 4.2 Temperature: 20 deg. C 70 0.2ItA (14mA) 60 4.0 0.5ItA (35mA) 50 3.8 1ItA (70mA) 40 3.6 30 Cell voltage (V) Capacity (mAh) 3.4 20 Charge: 35mA (0.5ItA)/4.2V (CCCV)/End current 2mA 2ItA (140mA) Discharge: 14mA (0.2ItA) (E.V. = 3.0V) 3.2 10 Temperature: 20 deg. C
3.0 0 0 10 20 30 40 50 60 70 80 0 100 200 300 400 500 Capacity (mAh) Cycle number (cycle)
20.06 3 CLB
Characteristics (CLB2016)
í Charge characteristics í Discharge temperature characteristics 100 20 4.5 4.4 Charge: 15mA (0.5ItA)/4.2V (CCCV)/End current 0.8mA 18 60 deg. C Discharge: 6mA (0.2I A) (E.V.=3.0V) Cell voltage 4.2 t 16 4.0 45 deg. C 20 deg. C 14 4.0 0 deg. C –10 deg. C 12 3.5 3.8 –20 deg. C 50 10 Charge capacity 8 3.0 3.6 Charge current Cell voltage (V) 6 Cell voltage (V) 3.4 Charge current (mA) Charge capacity (%) 4 2.5 Charge: 15mA (0.5ItA)/4.2V (CCCV)/ 3.2 2 End current 0.8mA Temperature: 20 deg. C 0 0 2.0 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 0 5 10 15 20 25 30 35 Time (hour) Capacity (mAh)
í Discharge load characteristics í Cycle li e characteristics 4.4 30 Charge: 15mA (0.5I A)/4.2V (CCCV)/End current 0.8mA 0.2I A (6mA) t t Temperature: 20 deg. C 4.2 25 0.5ItA (15mA) 4.0 1ItA (30mA) 20 3.8 15 3.6 10 Capacity (mAh) Cell voltage (V) 3.4 2ItA (60mA) Charge: 15mA (0.5ItA)/4.2V (CCCV)/End current 0.8mA 5 Discharge: 6mA (0.2ItA) (E.V. = 3.0V) 3.2 Temperature: 20 deg. C
3.0 0 0 5 10 15 20 25 30 35 0 100 200 300 400 500 Capacity (mAh) Cycle number (cycle)
Characteristics (CLB937A)
í Charge characteristics í Discharge temperature characteristics 100 10 4.4 4.4 Charge: 9mA (0.5ItA)/4.2V (CCCV)/End current 0.5mA 9 60 deg. C 4.2 4.2 Discharge: 3.6mA (0.2ItA) (E.V. = 3.0V) 40 deg. C 8 Cell voltage 20 deg. C 7 4.0 4.0 0 deg. C –10 deg. C 6 3.8 3.8 50 5 Charge capacity 3.6 4 3.6 Charge current Cell voltage (V) 3 3.4 Cell voltage (V) 3.4 Charge current (mA) Charge capacity (%) –20 deg. C 2 Charge: 9mA (0.5I A) /4.2V (CCCV)/ t 3.2 3.2 1 End current 0.5mA Temperature: 20 deg. C 0 0 3.0 3.0 0 0.5 1.0 1.5 2.0 2.5 0 2 4 6 8 10 12 14 16 18 20 Time (hour) Capacity (mAh)
í Discharge load characteristics í Cycle li e characteristics 4.4 20 Charge: 9mA (0.5ItA)/4.2V (CCCV)/End current 0.5mA 0.2ItA (3.6mA) 18 4.2 Temperature: 20 deg. C 16 0.5ItA (9mA) 4.0 14 1ItA (18mA) 12 3.8 10 3.6 8 Capacity (mAh) Cell voltage (V) 6 3.4 Charge:9mA (0.5ItA)/4.2V (CCCV)/End current 0.5mA
2ItA (36mA) 4 Discharge: 3.6mA (0.2ItA) (E.V. = 3.0V) 3.2 2 Temperature: 20 deg. C 3.0 0 0 2 4 6 8 10 12 14 16 18 20 0 200 400 600 800 1000 Capacity (mAh) Cycle number (cycle)
20.06 4 CLB
Characteristics (CLB740H)
í Charge characteristics í Discharge temperature characteristics 100 10 4.4 4.4 Charge: 9.5mA (0.5ItA)/4.2V (CCCV)/End current 0.38mA 9 60 deg. C Cell voltage 4.2 4.2 Discharge: 3.8mA (0.5ItA) (E.V. = 3.0V) 40 deg. C 8 20 deg. C 7 4.0 4.0 0 deg. C ‒10 deg. C 6 3.8 3.8 50 5 Charge capacity 3.6 4 3.6 Charge current Cell voltage (V) 3 3.4 Cell voltage (V) 3.4 Charge current (mA) Charge capacity (%) 2 ‒20 deg. C Charge: 9.5mA (0.5ItA) /4.2V (CCCV)/ 3.2 3.2 1 End current 0.38mA Temperature: 20 deg. C 0 0 3.0 3.0 0 0.5 1.0 1.5 2.0 2.5 0 2 4 6 8 10 12 14 16 18 20 Time (hour) Capacity (mAh)
í Discharge load characteristics í Cycle li e characteristics 4.4 20
0.05ItA (1mA) 18 4.2 16 0.2ItA (3.8mA) 4.0 14 0.5ItA (9.5mA) 12 3.8 10 3.6 8 1ItA (19mA) Capacity (mAh) Cell voltage (V) 3.4 6 4 Charge: 9.5mA (0.5ItA)/4.2V (CCCV)/End current 0.38mA Charge:9.5mA (0.5ItA)/4.2V (CCCV)/End current 0.38mA 3.2 Discharge: 3.8mA (0.2ItA) (E.V. = 3.0V) Temperature: 20 deg. C 2 Temperature: 20 deg. C 3.0 0 0 2 4 6 8 10 12 14 16 18 20 0 200 400 600 800 1000 Capacity (mAh) Cycle number (cycle)
External Dimensions ith Terminals and Wire Connectors (unit mm)
CLB2032 T1 CLB2032 W 1 CLB937A SB S T11
6.5 34 5.0 Insulation sleeve C1 1.8 2.5 ø9.5 20.2 ø20
7.45 C0.5 35
（＋） 3.0 Insulating paint （＋） Insulation sleeve （－） 4.4 （ 3.94 ） 4.0 （－） 4.0
Lead wire C0.5 1 2.5 C1 Housing: DF13-2S-1.25C (Hirose) Contact: DF13-2630SCF (Hirose) 6.5 Lead wire: AWG28 UL1571
The above are examples. Processing to meet customer requests is possible.
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