Relayr Ithings4u Gmbh WunderBar Internet of Things WiFi & Bluetooth Sensor Starter-Kit WunderBar WunderBar 数据表
产品代码
WunderBar
海芯工业有限公司
Hypercell Industrial Company Limited
Page 6 o f 1 2
5. Performance and Test Conditions
5.1 Standard Test Conditions
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 defined, test and
measurement shall be done under temperature of 20±5 and relative humidity of 45~85%. If it is
the cells shall not be cycled more than five times before the test. Unless otherwise defined, 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.
temperature 15~30℃ and humidity 25~85%RH.
5.2 Measuring Instrument or Apparatus
5.2.1 Dimension Measuring Instrument
The dimension measurement shall be implemented by instruments with equal or more precision
scale of 0.01mm.
scale of 0.01mm.
5.2.2 Voltmeter
Standard class specified in the national standard or more sensitive class having inner impedance
more than 10kΩ/V.
more than 10kΩ/V.
5.2.3 Ammeter
Standard class specified in the national standard or more sensitive class. Total external resistance
including ammeter and wire is less than 0.01Ω..
including ammeter and wire is less than 0.01Ω..
5.2.4 Impedance Meter
Impedance shall be measured by a sinusoidal alternating current method (1 kHz LCR meter).
5.3 Standard Charge\Discharge
5.3.1 Standard Charge ：Test procedure and its criteria are referred as follows:
5.3.1 Standard Charge ：Test procedure and its criteria are referred as follows:
0.5C
5
A = 65mA
Charging shall consist of charging at a 0.5C
5
A constant current rate until the cell reaches 4.2V.
The cell shall then be charged at constant voltage of 4.2V while tapering the charge current.
Charging shall be terminated when the charging current has tapered to 0.01C
Charging shall be terminated when the charging current has tapered to 0.01C
5
A. Charge time:
Approx4.0 h. The cell shall demonstrate no permanent degradation when charged between 0 ºC
and 45 ºC.
and 45 ºC.
5.3.2 Standard Discharge
0.2C
5
A = 26mA
Cells shall be discharged at a constant current of 0.2C
5
A to 3.0V @ 20℃.
5.4 Appearance
There shall be no such defect as flaw, crack, rust, leakage, which may adversely affect commercial
There shall be no such defect as flaw, crack, rust, leakage, which may adversely affect commercial
value of battery.
5.5 Initial Performance Test
Table 2
Item Measuring
Procedure
Requirements
(1) Open-Circuit
Voltage
The open-circuit voltage shall be measured
within 24 hours after standard charge.
within 24 hours after standard charge.
≥3.85V
(2) AC
Impedance
Resistance
Resistance
The Impedance shall be measured in an
alternating current method (1kHz LCR meter)
after standard charge at 20±5 .
alternating current method (1kHz LCR meter)
after standard charge at 20±5 .
℃
≤280mΩ
(3) Nominal
Capacity
The capacity on 0.2C
5
A discharge shall be
measured after standard charge at 20±5 .
℃
Discharge Capacity
≥130mAh
≥130mAh
5.6 Temperature Dependence of Capacity (Discharge)
Cells shall be charged per 5.3.1. and discharged @0.2C
5
A to 3.0V. except to be discharged with