Battery Encyclopedia

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

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 of the battery will reduce the battery discharge working voltage and shorten the discharge time. … Read more

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 carbon) Organic electrolyte Battery case (divided into two kinds of steel shell and aluminum shell), … Read more

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 worldwide standardization organization composed of electrical committees of various countries. Its purpose is to promote … Read more

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+ + xe- Negative reaction: C + xLi+ + xe- → CLix Total battery reaction: LiCoO2 … Read more