Blogs About Lithium Batteries

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

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

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)

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

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)

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

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.

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

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

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

What Is the Nominal Voltage? The nominal voltage of the battery refers to the voltage exhibited during normal operation. The nominal voltage of secondary nickel-cadmium nickel-hydrogen batteries is 1.2V. While the nominal voltage of secondary lithium batteries is 3.6V.

What Is the Internal Resistance of Battery? It refers to the resistance experienced by the current flowing through the battery when the battery is working. It is composed of ohmic internal resistance and polarization internal resistance. The large internal resistance

What Are the Main Structural Components of Lithium-ion Batteries? The main components of lithium-ion batteries are: Upper and lower battery covers Positive electrode sheet (active material is lithium cobalt oxide Separator (a special composite membrane) Negative electrode (active material is

What Is the Main Structure of Ni-MH battery? The main components of nickel-metal hydride batteries are: positive electrode sheet (nickel oxide), negative electrode sheet (hydrogen storage alloy), electrolyte (mainly KOH), diaphragm paper, sealing ring, positive electrode cap, battery case, etc.

What Are the Commonly Used Standards for Batteries? Commonly used IEC standards for batteries: The standard for nickel-metal hydride batteries is IEC61951-2: 2003 The standards for lithium batteries are GB/T10077_1998, YD/T998_1999, and GB/T18287_2000. IEC, the International Electrical Commission, is a

What Is the Electrochemical Principle of Lithium Ion Batteries? The main component of the positive electrode of the lithium ion battery is LiCoO2, and the negative electrode is mainly C. When charging:  Positive electrode reaction: LiCoO2 → Li1-xCoO2 + xLi+

What Is the Electrochemical Principle of Ni-MH Battery? Ni-MH batteries use Ni oxide as the positive electrode, hydrogen storage metal as the negative electrode, and lye (mainly KOH) as the electrolyte. When the nickel-hydrogen battery is charged: Positive electrode reaction:

What Are the Differences Between Primary Batteries and Secondary Batteries? The main difference is that the active material is different. The active material of the secondary battery is reversible, while the active material of the primary battery is not. The

What Is A Battery? Battery is device for energy conversion and storage, which converts chemical or physical energy into electrical energy through reactions. According to the different energy conversion of battery, battery can be divided into a chemical battery and a physical battery.