14.8V 7.5Ah 4S3P Portable Home Lithium Battery

1           Scope适用范围

Mentioned in this manual applies to the book, SKET POLYMER manufacture of batteries.

本说明书适用于本书中所提及的、锂辉制造的电池。

2          Product Specification产品技术规格

   Table 1 (表 1)

No.

(序号)

Item

(项目)

General Parameter

(常规参数)

Remark

(备注)

1 Model/型号 14.8V 7.5Ah 4S3P(4串3并)
2 Rated Capacity

(额定容量)

Typical

(典型容量)

7.8Ah Standard discharge(5A) after Standard charge

(标准充电后5A标准放电)

Minimum

(最小容量)

7.5Ah
3 Nominal Voltage

(标称电压)

14.8V Mean Operation Voltage

(即平均工作电压)

4 Voltage at end of

Discharge

(放电终止电压)

11V Discharge Cut-off Voltage

(放电截止电压)

5 Charging Voltage

(充电电压)

16.8±0.05V  
6 Internal Impedance

(内阻)

≤200mΩ Internal resistance measured at AC 1KHZ after 50% charge

(半电态下用交流法测量内阻)

The measure must uses the new batteries that within one week after shipment and cycles no more than 5 times

(用出货后不到一个星期及循环次数不多于5次的新电池测量)

7 Standard charge

(标准充电)

Constant Current 2A

Constant Voltage 16.8V

50mA cut-off

(持续电流:2A

持续电压:16.8V

截止电流:50mA)

Charge time : Approx 4h

(充电时间:大约4个小时)

8 Standard discharge

(标准放电)

Constant current 5A

end voltage 11V

(持续电流:5A

截止电压:11V)

 
9 Short circuit protection

(短路保护值)

40 电流达到A自动断开保护,秒后自动恢复
 

 Continuous the table 1  (续 表1)

No.

(序号)

Item

(项目)

General Parameter

(常规参数)

Remark

(备注)

10 Under voltage protection

(欠压保护)

2.5V 单体保护阈值
11 Over voltage protection

(过压保护)

4.25V 单体保护阈值
12 电池外壳资料

The crust data

玻璃纤维板,吹蓝色PVC

 

 
13 电池重量

Battery Weight(About)

0.65Kg  
14 电池循环寿命 (标准充放电)

battery Cycle Life(standard charge& discharge)

≥ 850 次 注:剩余容量≥60% remark: the residual capacity is more than 60% of the first cycle discharge

capacity)

15 Operation Temperature Range

(工作温度范围)

Charge(充电): 0~45℃ 60±25%R.H.

Bare Cell

(单体电池储存湿度范围)

Discharge(放电): -20~60℃
16 Storage Temperature Range

(储存温度范围)

Less than 1 year: -20~25℃

(小于一年:-20~25℃)

60±25%R.H.

at the shipment state

(出货状态时的湿度范围)

less than 3 months: -20~40℃

(小于3个月:-20~40℃)

3           Performance And Test Conditions (电池性能及测试条件)

3.1 Standard Test Conditions(标准测试条件)

Test should be conducted with new batteries within one week after shipment from our factory and the cells shall not be cycled more than five times before the test. Unless otherwise specified, test and measurement shall be done under temperature of 20±5℃ and relative humidity of 45~85%. If it is judged that the test results are not affected by such conditions, the tests may be conducted at temperature 15~30℃ and humidity 25~85%RH.

测试必须使用出厂时间不超过一个星期的新电池,且未进行过五次以上的充放电循环。除非特别说明,否则测试会在温度20±5℃,相对湿度45~85%的条件下进行。如果经鉴定测试结果不受上述条件影响,测试也可以在温度15~30℃,相对湿度25~85%RH的条件下进行。

3.2 Measuring Instrument or Apparatus(测量器具及设备)

3.2.1 Dimension Measuring Instrument(尺寸测量器具)

The dimension measurement shall be implemented by instruments with equal or more

precision scale of 0.01mm.

   尺寸测量器具的精度等级应不小于0.01 mm 。

3.2.2 Voltmeter(伏特计)

Standard class specified in the national standard or more sensitive class having inner impedance more than 10kΩ/V

按照国家标准指定规格等级或采用灵敏度更高的,测量电压时内阻不应小于10kΩ/V。

3.2.3 Ammeter(安培计)

Standard class specified in the national standard or more sensitive class. Total external

resistance including ammeter and wire is less than 0.01Ω.

   按照国家标准指定规格等级或采用灵敏度更高的,包括电流表及电线在内的总外阻应小于0.01Ω。

3.2.4 Impedance Meter(电阻计)

Impedance shall be measured by a sinusoidal alternating current method(1kHz LCR meter).

内阻测试仪测量原理应为交流阻抗法(1kHz LCR)。

3.3 Standard Charge\Discharge(标准充放电)

  3.3.1 Standard Charge :Test procedure and its criteria are referred as follows:

       标准充电:测试过程及标准如下:

Charging shall consist of charging at a 2A constant current rate until the Battery Pack reaches 16.8V. The Battery Pack shall then be charged at constant voltage of 16.8 volts while tapering the charge current.  Charging shall be terminated when the charging current has tapered to 50mA. Charge time: Approx 4h, The cell shall demonstrate no permanent degradation when charged between 0 ºC and 45 ºC.

 电池先2A恒流充至16.8V,当充电电流逐渐减小时再以16.8V恒压充至电流减小到50mA,充电时间大约为4个小时。在0℃-45℃内充电电池应没有永久损害。

3.3.2 Standard Discharge(标准放电)

Battery Pack shall be discharged at a constant current of 5A to 11 volts @ 20± 5℃

电池以5A恒流放电至11V @ 20± 5℃

3.3.3 If no otherwise specified, the rest time between Chare and Discharge amount to 30min.

       如果没有特别说明,电池充放电间隔时间为30分。

3.4 Appearance(外观)

        There shall be no such defect as flaw, crack, rust, leakage, which may adversely affect commercial

value of battery.

   电池外观应没有划伤、破裂、污渍、生锈、漏液等影响市场价值的缺陷存在。

  3.5 Initial Performance Test(初始性能测试)

Table 2(表 2)

Item

(项目)

Test Method and Condition

(测试方法及条件)

Requirements

(要求)

(1)   Open-Circuit

Voltage

(开路电压)

The open-circuit voltage shall be measured within 12 hours after standard charge.

(标准充电后12小时内测量开路电压)

≥16.4V
(2)   Internal impedance

(初始内阻)

Internal resistance measured at AC 1KHz after 50% charge.

(半充电状态下,测量其AC 1KHz下的交流阻抗)

≤200mΩ
(3)    Minimal Rated

 Capacity

(最小额定容量)

The capacity on 5A discharge till the voltage tapered to 11V shall be measured after rested for 30min then finish standard charge.

(标准充电后,搁置30min,测量5A放电至11V截止电压所放出的容量)

Discharge Capacity

(放电容量)

≥7.5Ah

3.6 Temperature Dependence of discharge capacity(放电温度特性)

         Cells shall be charged per 3.3.1 and discharged @0.2 C5A to 21 volts. Except to be discharged at temperatures per Table 3.  Cells shall be stored for 3 hours at the test temperature prior to discharging and then shall be discharged at the test temperature.  The capacity of a cell at each temperature shall be compared to the capacity achieved at 23 ºC and the percentage shall be calculated.  Each cell shall meet or exceed the requirements of Table 3.

         电池按3.3.1规定充电。按表3的温度中放电,电池必须先在该试验温度中放置3个小时。在每一个温度中的放电容量应不小于表3的要求。

Table 3 (表3)

Discharge Temperature

(放电温度)

-20℃ 0℃ 23℃ 60℃
Discharge Capacity (5A)

(放电容量/5A)

60% 80% 100% 95%
3.7 Cycle Life and Leakage-Proof(循环寿命及漏液试验)

Table 4(表4)

No.

(序号)

Item

(项目)

Criteria

(标准)

Test Conditions

(测试条件)

1 Cycle Life

(循环寿命)

(5A)

Higher than 70% of the Initial Capacities of the Cells

(初始容量的60%)

Carry out 850cycle

Charging/Discharging in the below condition.

◆Charge:Standard Charge, per 3.3.1

◆Discharge:5A  to 11 V

◆Rest Time between charge/discharge:30min.

◆Temperature:60℃

循环850次

充放电按以下条件:

◆充电: 标准充电, 按 3.3.1规定

◆放电:5A放至 11V

◆搁置:30min.

◆温度:25℃

2 Leakage-Proof

(漏液试验)

No leakage

(visual inspection)

(没有漏液/目测)

After full charge with standard charge, store at 60±3℃, 60±10%RH for 1 month.

标准充电条件下充满电后在温度60±3℃,湿度60±10%RH下储存一个月

4.      Mechanical characteristics and Safety Test(安全测试及机械特性)

Table 5(表5)                                                (Mechanical characteristics)

No.

(序号)

Items

(项目)

Test Method and Condition

(测试方法及条件)

Criteria

(标准)

1 Vibration Test

振动测试

After standard charging, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz an 55Hz, the excursion of the vibration is 1.6mm. The cell shall be vibrated for 30 minutes per axis of XYZ axes.

将标准充电后的电芯固定在振动台上,沿X、Y、Z三个方向各振动30分钟,振幅1.6mm,振动频率为10Hz~55Hz,每分钟变化1Hz。

No leakage

无泄漏

No fire

不起火

 

2 Drop Test

跌落测试

The cell is to be dropped from a height of 1 meter twice onto concrete ground.

将标准充电后的电芯从1米高度跌落至混凝土地面2次

No explosion,

No fire, no leakage.

无爆炸、无起火 、无泄漏

     

 Table 6(表 6)                                                        (Safety Test)

Item

(项目)

Battery

Condition

(电池要求)

Test Method

(测试方法)

Requirements

(要求)

Crush

(挤压试验)

Fresh,

Fully charged

(充满电的新电池)

Crush between two flat plates. Applied force is about 13kN(1.72Mpa) for 30min.

(电池放置在两块平面金属板间,施加13KN(1.72Mpa)的作用力,且持续保持30分钟)

No explosion,

No fire

(无起火无爆炸)

Short

Circuit

(短路试验

20℃)

Fresh,

Fully charged

(充满电的新电池)

Each test sample battery, in turn, is to be short-

circuited by connecting the (+) and (-) terminals of the battery with a Cu wire having a maximum resistance load of 0.1Ω.Tests are to be conducted at room temperature(20±2℃ ).

(在常温下约20±2℃依次把每个样品电池的正负极用铜线连接起来使电池外部短路–线路总电阻不超过0.1Ω)

No explosion,

No fire       The Temperature of the surface of the Cells are lower than 150℃

(无起火无爆炸

电池表面温度应低于150℃)

Short

Circuit

(短路试验

60℃)

Fresh,

Fully charged

(充满电的新电池)

Each test sample battery, in turn, is to be short-

circuited by connecting the (+) and (-) terminals of the battery with a Cu wire having a maximum resistance load of 0.1Ω.Tests are to be conducted at temperature(60±2℃ ).

(在常温下约60±2℃依次把每个样品电池的正负极用铜线连接起来使电池外部短路–线路总电阻不超过0.1Ω)

No explosion,

No fire       The Temperature of the surface of the Cells are lower than 150℃

(无起火无爆炸

电池表面温度应低于150℃)

Impact

(冲击试验)

Fresh,

Fully charged

(充满电的新电池)

A 56mm diameter bar is inlayed into the bottom of a 10kg weight. And the weight is to be dropped from a height of 1m onto a sample battery and then the bar will be across the center of the sample.(用一条直径为56mm的圆棒放置在电池中央,将一10Kg的重锤从1m的高度垂直落下在电池的中心位置) No explosion,

No fire

(无起火无爆炸)

Forced

Discharge

(过放试验)

Fresh,

Fully charged

(充满电的新电池)

Discharge at a current of 5A for 2h.

(以5A 的电流放电2小时)

No explosion,

No fire

(无起火无爆炸)

5. Storing the Batteries (电池的存放)

The batteries should be stored at room temperature, charged to about 30% to 50% of capacity.
We recommend that batteries be charged about once per year to prevent over discharge.

电池应当在室温下存放,应充到30%至50%的电量。如长时间储存,建议每年充一次电以防止电池过放电。

6.Note:(注释)

 Any other items which are not covered in this specification shall be agreed by both parties.

本说明书未包括事项应由双方协议确定。

11.2外壳图片

The crust photographs

      Dimension

整体尺寸:  L*W*T=125mm*67mm*38mm

Harness length

线束长度:140mm                

       

 

 

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