Document Name
Document No.
Date
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CR2032
Specification
ZJQM-RD-SPC-H0374
2019-4-29
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EEMB BATTERY
Lithium Manganese Dioxide Battery
Specification
锂锰二氧化物电池
产品规格书
Model 型号:
CR2032
Capacity 容量:
210mAh
Prepared 编制
Checked 审核
Approved 批准
Customer 客户名称:
Customer Approval（Customer confirmation）客户确认:
Signature 签字
Checked 审核
Approved 批准
Address：6 /F, Block 110, Jindi Industrial Zone, ShaTou Street, Futian District, ShenZhen,China
Postal code：518048
Phone: +86-755-83022275 Fax: +86-755-83021966
http://www.eemb.com
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Catalog
Content
Page
Catalog………………………………………………………………………………………………….
2
Scope…………………………………………………………………………………………………...
4
Features and Applications…………………………………………………………………………...
4
Battery Basic Characteristics……………………………………………………………………......
5
Battery Shape and Dimension……………………………………………………………………...
5
Appearance…………………………………………………………………………......
5
Battery Characteristics……………………………………………………………………………...
6
Characteristics Curves……………………………………………………………………………....
6-7
Memory Backup Circuit Design Suggestion………………………………………………………......
7
Warranty
7
Matters Needing Attention
8-12
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Battery Structure 电池结构
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1. Scope 适用范围
This product specification defines the requirements of the Lithium Manganese Dioxide Battery supplied to the
customer by EEMB Co., Ltd.
本产品规格书适用于 EEMB 提供的锂锰二氧化物电池。
Manganese dioxide (MnO2) is used for the active cathode material, and high voltage, high activity lithium metal
for the anode material. Battery discharge reactions are as follows:
二氧化锰（MnO2）用作活性正极材料，高电压，高活性锂金属用作负极材料。电池放电反应如下：
Anode reaction 负极反应: Li → Li + e-
Cathode reaction 正极反应: MnO2+ Li + e- → MnO2Li
Total reaction 总反应式: MnO2+ Li → MnO2Li
2. Features and Applications 特点和应用
Features 特点:
Light weight, high voltage and high energy density. Excellent stable discharge characteristics.
重量轻，高电压和高能量密度。优异的稳定放电特性。
Outstanding temperature characteristics.
出色的温度特性。
Excellent leakage resistance.
优异的防漏性。
Excellent long-term reliability.
出色的长期可靠性。
Applications 应用:
Watches 表
Calculators 计算器
PC notebooks PC 笔记本
Electronic keys 电子钥匙
Card-type radios 卡式无线电
IC cards IC 卡
Memory cards 记忆卡
Medical equipment 医疗设备
CMOS memory backup CMOS 内存备份
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3. Battery Basic Characteristics 电池产品基本特性
4. Battery Shape and Dimension（Unit：mm）
电池产品外形及尺寸（单位：mm）
Item 项目
Specification 规格
D
20.0-0.3
H
3.2
-0.3
d
Max.
16.9
h
Max. 0.5
5. Appearance 外观
It shall be free from any defects such as remarkable scratches, breaks, cracks, discoloration, leakage, or middle
deformation.
电池表面无划伤、裂纹、脏点、锈蚀、变形、变色、漏液等缺陷，中间无翘起。
6. Battery Characteristics 电池性能
No.
Item 项目
Characteristics 特性
Remarks 备注
3.1
Model 型号
CR2032
3.2
Nominal capacity 标称容量
210mAh
Standard discharge with load 15KΩ
标准放电，负载15KΩ
3.3
Nominal voltage 标称电压
3.0V
Standard discharge
标准放电
3.4
Weight 重量
Approx约.
3.0g
Unit cell
单电芯
3.5
Self-discharge rate 自放电率
≤3%
Stored for 12 months at
room
temperature
室温下存储12个月
3.6
Operating temperature 工作温度
-20 ~60℃
3.7
Storage temperature 存储温度
0 ~ 35℃
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Test condition: Temperature 20℃~25℃; Humidity 65±20%.
试验条件：温度 20℃~25℃；湿度 65±20％。
7. Characteristics Curves 性能曲线图
No
Item 项目
Standard 标准
Test Methods 测试方法
6.1
Capacity 容量
≥1000h
Continuously discharge for 8 hours with load 15kΩ, till 2.0V
end-voltage (for fresh battery only: within 3 months ).
负载15kΩ连续放电8小时，直至2.0V终止电压（仅适用于
新电池：3个月内）。
6.2
Vibration test
振动测试
Characteristics keep stability
特性保持稳定
Put battery on the platform
of
the
vibrations
machine, start the
machine and adjust the frequency form 10 times
per
minute
to 15 times per minute. keep
it
running for an hour.
将电池放在振动机的平台上，启动机器并将频率表每分钟
调整10次至每分钟15次。让它运行一个小时。
6.3
Leakage at high
Temperature
高温泄漏
Leakage rate
≤ 0.6%
漏液
率
≤ 0.6%
Stored under temperature (45℃
)
for 30 days.
在温度（45℃）下储存30天。
6.4
Over discharge
Test
过放测试
No leakage allowed.
不漏液。
After 2.0V end-voltage, continuously discharged for 5 hours.
在2.0V终止电压后，连续放电5小时。
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8. Memory Backup Circuit Design Suggestion 存储器备份电路设计建议
A primary lithium battery is not rechargeable, when used for memory backup in combination with another power
source; current may flow into the battery from the other source. A protection diode and resistor into the circuit is
needed to avoid battery charging or over discharging. Select a silicon diode or a diode with minimum leakage
current, and design the circuit so that the amount of charging due to leakage current will not exceed 2% of the
nominal battery capacity over the total period of use.
当用于与其他电源组合的存储器备份时，主锂电池不可再充电；电流可能从另一个电源流入电池。需要
在电路中使用保护二极管和电阻器以避免电池充电或过度放电。选择具有最小漏电流的硅二极管或二极
管，并设计电路，使漏电流引起的充电量不超过总使用时间内标称电池容量的 2％。
While used for memory backup, the following circuit shall be applied:
用于内存备份时，应使用以下电路：
9. Warranty 保质期
6 months warranty for sample battery after date of production. One year warranty for finished battery after the
date of production.
样品电池保质期为（出厂之日起）半年；产品电池保质期为（出厂之日起）1年。
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10. Matters Needing Attention 注意事项
Strictly observes the following needing attention. EEMB will not be responsible for any accident occurred by
handling outside of the precautions in this specification.
您必须严格遵守下述电池使用注意事项。对于没有按照以下注意事项所造成的任何意外事故，EEMB 不
负担任何责任。
! Danger 危险
Use Nickel-plated iron or Nickel-plated stainless steel for the terminals that contact the battery.
使用镀镍铁或镀镍不锈钢作为接触电池的端子。
Make sure that terminal contact pressure is 50g minimum, for a stable contact.
确保端子接触压力最小为 50g，以确保稳定接触。
Keep the battery and contact terminal surfaces clean and free from moisture and foreign matter.
保持电池和接触端子表面清洁，避免受潮和异物进入。
Before inserting the battery, check the battery contact terminals to make sure they are normal, not bent or
damaged. (Bent terminals may not make good contact with the battery or may cause short circuit.)When the
batteries are piled up in a disorderly way, their positive and negative terminals may short-circuit, consuming
some batteries while charging others, causing explosion.
在插入电池之前，请检查电池接触端子，确保它们正常，没有弯曲或损坏。（弯曲的端子可能与电
池没有良好的接触或者可能导致短路。）当电池以无序的方式堆积时，它们的正极和负极可能会短
路，在给其他电池充电时会消耗一些电池，从而导致爆炸。
Lithium batteries that are almost exhausted can output a voltage that is almost the same as that of a new
battery: Please does not judge a battery only with a Voltmeter. Do not mix batteries of different types and
brands, or new and used batteries. We are well informed that battery pack should be assembled with single
batteries of similar voltage, capacity and inner resistance.
几乎耗尽的锂电池可以输出与新电池几乎相同的电压：请不要仅用电压表判断电池。请勿混用不同
类型和品牌的电池，或新旧电池。我们充分了解电池组应使用类似电压，容量和内阻的单个电池组
装。
Lithium batteries need a period of time to recover their normal voltage after even a slight short circuit.
Therefore, if the battery is short-circuited, wait an adequate long time for batteries to recover before
measuring their electrical characteristics.
即使是轻微的短路，锂电池也需要一段时间才能恢复正常电压。因此，如果电池短路，请在测量电
气特性之前等待足够长的时间让电池恢复。
Use a high impedance (1M or higher) voltmeter to measure battery voltage.
使用高阻抗（1M 或更高）电压表测量电池电压。
Add fuse between negative and connector. Once short circuit, it will cut immediately and permanently.
在负极和连接器之间添加保险丝 一旦短路，它将立即永久切断。
Do not contact terminals with conductive i.e. metal, goods. Keep batteries in non-conductive, i.e. plastic,
trays. Reduce impact to insulation layer from vibration, but the dimension will enlarge.
不要接触带导电的端子，即金属，货物。将电池放在不导电的塑料托盘中。减少振动对绝缘层的影
响，但尺寸会增大。
Battery characteristics vary with type and grade, even when batteries are the same size and shape. When
replacing batteries with new ones, be sure to carefully check the symbols and numbers on them.
即使电池尺寸和形状相同，电池特性也会因型号和等级而异。更换新电池时，请务必仔细检查电池
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上的符号和数字。
! Warning 警 告
DO NOT recharge, short-circuit, disassemble, deform, heat or place the battery near a direct flame. This
battery contains flammable materials such as lithium and organic solvent and performing any of the above
actions could cause it to ignite explode or become damaged.
请勿在直接火焰附近充电，短路，拆卸，变形，加热或放置电池。该电池含有易燃材料，如锂和有
机溶剂，执行上述任何操作都可能导致其爆炸或损坏。
DO NOT over-discharge the battery. In case the battery is over-discharged when connected with exterior
power source or connected with other batteries in series, explosion may occur.
请勿过度放电。如果在与外部电源连接或与其他电池串联时电池过放电，可能会发生爆炸。
Keep this battery out of the reach of children. If it is swallowed, contact a physician immediately.
请将此电池放在儿童接触不到的地方。如果被吞下，请立即联系医生。
When storing a battery or throwing it away, be sure to cover it with tape. If the battery is contacted with
other metal objects, it could cause fire or become damaged.
存放电池或丢弃电池时，请务必用胶带盖住电池。如果电池与其他金属物体接触，可能会引起火灾
或损坏。
! Caution 注 意
Thoroughly read the user’s manual before use, inaccurate handling may cause leakage, heat, smoke,
explosion, or fire, causing device trouble or injury.
使用前请仔细阅读用户手册，不准确的操作可能会导致泄漏，发热，冒烟，爆炸或起火，从而导致
设备故障或受伤。
Insert the battery with the "+" and "-" ends correctly oriented
插入电池时，“+”和“ - ”端正确定向.
If the battery is used together with new batteries, do not use it with a different type battery.
如果电池与新电池一起使用，请勿将其与其他类型的电池一起使用。
Do not solder the battery directly. Protect the welding point and connector.
不要直接焊接电池。 保护焊接点和连接器。
The battery should be preferably stored in dry and cool conditions. Avoid storing the battery in direct
sunlight, or in excessively hot and humid place. Storage at high temperature must be avoided to preserve the
battery life time.
电池应优选储存在干燥和凉爽的条件下。 避免将电池存放在阳光直射或过热的地方。 必须避免在
高温下储存，以延长电池的使用寿命。
! Storage and Mount 存储和安装
The cell should be preferably stored in dry and cool conditions.
电池应优选储存在干燥和凉爽的条件下。
+60℃, 120 days stored condition is the equivalent of 6 years at room temperature (+21℃).
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Button lithium batteries need special method to avoid short-circuiting before and after they are installed. As short
circuits tend to occur in the following cases, please take care when handing the batteries
+ 60℃，120 天储存条件相当于室温下 6年（+ 21℃）。
纽扣锂电池需要特殊的方法，以避免安装前后的短路。 由于在下列情况下容易发生短路，请在搬运电池
时注意
Overlapping Batteries
重叠电池
A Button lithium battery is shaped as shown below. It has exposed positive and negative metallic surfaces with a
thin cylindrical seal, called the gasket, in between.
纽扣锂电池的形状如下所示。它暴露出正负金属表面，中间有一个薄的圆柱形密封，称为垫圈。
When batteries are overlapped or mixed together in a disorder way, their positive and negative terminals touch
each other, causing short circuits.
当电池以无序方式重叠或混合在一起时，它们的正极和负极端子相互接触，导致短路。
Batteries put in a Metallic Container or on a Metallic Plate
电池放在金属容器或金属板上
Similar to the overlapping battery problem, when batteries are put in a metallic container or on a metallic plate,
their positive and negative terminals may short circuit through the conductive surface depending on the
placement
类似于重叠电池问题，当电池放入金属容器或金属板上时，它们的正极和负极端子可能会因导电表面而
短路，这取决于放置位置。
When a Battery is Held with Tweezers
用镊子拿电池时
When held with a pair of metallic tweezers as shown below, the battery short-circuits through the tweezers
当用如下所示的一对金属镊子固定时，电池通过镊子短路
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When Battery Lead Plates Touch Each Other
当电池引线板相互接触时
When battery lead plates bend and touch each other or either terminal, the battery short-circuits.
当电池引线板弯曲并相互接触或接触任何一个端子时，电池会短路。
Solder Bridges
焊接桥
Solder may bridge between board conductors, short-circuiting and draining battery.
焊料可能在电路板导体之间桥接，短路和耗尽电池。
Short-circuited though Soldering Iron
通过烙铁短路
Similar to solder bridging, when the circuit board wiring is short-circuited by a soldering iron for an extended
period, the battery is drained and consumed. Complete manual soldering within 5 seconds.
与焊料桥接类似，当电路板布线长时间被烙铁短路时，电池被耗尽和消耗。 5秒内完成手动焊接。
Shorts through Piled Circuit Board
通过堆积电路板短路
When circuit boards with batteries are piled on top of one another, their conductive traces may touch, and form a
battery discharge circuit that consumes the battery's power.
当具有电池的电路板堆叠在彼此之上时，它们的导电迹线可能接触，并形成消耗电池电力的电池放电电
路。
Discharge through Conductive Electrostatic Prevention Mats
通过导电静电防护垫放电
Conductive mats are widely used to prevent static electricity from destroying semiconductors. If a circuit board
with a battery mounted in put on a conductive mat, the soldered conductors may touch the mat, providing a
discharge path for the battery.
导电垫广泛用于防止静电破坏半导体。 如果安装有电池的电路板放在导电垫上，则焊接的导体可能接触
垫，从而为电池提供放电路径。
Improper Battery Mounting Polarity
不恰当的电池安装极性
When the battery's positive (+) and negative (-) terminals are backward with respect to the battery mounting's
polarity marks, the battery may be discharged, depending on the type of electric circuit.
当电池的正极（+）和负极（ -）端子相对于电池安装的极性标记向后时，根据电路的类型，电池可能
会放电。
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Solder
焊料
When the battery's lead plates are dipped in a molten solder bath, the battery is temporarily short-circuited.
Therefore, complete dipping within 5 seconds.
当电池的铅板浸入熔化的焊料槽中时，电池暂时短路。 因此，在 5秒内完成浸渍。
EEMB reserves the final explanation. Please use battery strictly according to specification. EEMB will not be responsible for any
inappropriate operation. EEMB keeps the right to change product specifications without previous notice. If any question, please
consult with the manufacturer
EEMB 保留最终解释权。请严格按照规范使用电池。EEMB 对任何不当操作将不负责。EEMB 保留修改产品规格书不另行
通知的权利。如有任何问题,请咨询制造商。