What Is the Charging Method of Lithium Battery? Constant current and constant voltage charging: The battery is first charged with constant current (CC). When the battery voltage rises to a certain value, the voltage remains unchanged (CV), and the current in the circuit drops to a small amount, eventually tending to zero.
What Are the Battery Safety Test Items? 01) Short circuit test 02) Overcharge and overdischarge test 03) Withstand voltage test 04) Impact test 05) Vibration test 06) Heating test 07) Fire test 08) Variable temperature cycle test 09) Trickle charge test 10) Free drop test 11) Low air pressure test 12) Forced discharge test 13) … Read more
What Is the Marking Method for Rechargeable Batteries Specified by IEC? According to the IEC61960 standard, the identification of the secondary lithium battery is as follows: 01) The identification composition of battery: 3 letters, followed by 5 numbers (cylindrical) or 6 (square) numbers. 02) The first letter: indicates the negative electrode material of the battery. I—represents lithium … Read more
What Are the Reliability Test Items for Battery? 01) Cycle life 02) Discharge characteristics of different rate 03) Discharge characteristics at different temperatures 04) Charging characteristics 05) Self-discharge characteristics 06) Storage characteristics 07) Over-discharge characteristics 08) Internal resistance characteristics at different temperatures 09) Temperature cycle test 10) Drop test 11) Vibration test 12) Capacity test 13) … Read more
What Is the Purpose of Battery Packaging, Assembly and Design? 01) Beautiful and branded. 02) Limited battery voltage. To obtain a higher voltage, just connect multiple batteries in series. 03) Protect the battery, prevent short circuit and prolong battery life. 04) Size limitation. 05) Easy to transport. 06) Design of special functions, such as waterproof, special appearance design, etc.
What Are the Packaging Materials of Battery? 01) Non-dry meson (paper) like fiber paper, double-sided tape 02) PVC film, trademark tube 03) Connecting sheet: stainless steel sheet, pure nickel sheet, nickel-plated steel sheet 04) Lead-out piece: stainless steel piece (easy to solder) Pure nickel sheet (spot welded firmly) 05) Plugs 06) Protection components such as temperature control … Read more
What Is A Discharge Platform? The discharge platform of Ni-MH rechargeable batteries usually refers to the voltage range of the relatively stable working voltage when the battery is discharged under a certain discharge system. Its value is related to the discharge current. The larger the current, the lower the value. The discharge platform of lithium-ion batteries is … Read more
What Is the Discharge Residual Capacity of the Battery? When discharging a rechargeable battery at a high current (e.g., 1C or above), the battery reaches the terminal voltage before its capacity is fully discharged. It’s due to the “bottleneck effect” that exists in the internal diffusion rate caused by the overcurrent. And it can still continue to … Read more
What Is the Capacity of the Battery? The battery capacity is divided into rated capacity and actual capacity. The rated capacity of the battery refers to the minimum amount of power that should be released under certain discharge conditions stipulated or guaranteed during the design and manufacture of the battery. The IEC standard stipulates that … Read more
What Is Open Circuit Voltage? Open circuit voltage refers to the potential difference between the positive and negative electrodes of the battery when the battery is in a non-working state. That is, when there is no current flowing through the circuit. Working voltage, also known as terminal voltage, refers to the potential difference between the … Read more
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