Analyze various technical terms related to batteries

Take you in-depth battery technology and a series of lithium batteries: lithium iron disulfide (LiFeS2), lithium manganese sulfur dioxide (LiMnO2), ideal lithium chloride (LiSOCl2), fluorocarbon polymer lithium (LiCFX), lithium sulfur dioxide (LiSO2)(LiI2), lithium chloride, lithium, iodine (LiAlCl4), lithium cobalt oxide (LiCoO2LCO), lithium iron phosphate (lithium iron phosphate), lithium manganese oxide (LiMn2O4LMO), lithium nickel manganese cobalt oxide (LiNiMnCoO2NMC), aluminum nickel and cobalt oxides (iNiCoAlO2, NCA), lithium titanate (Li4TI5O12, LTO). Continue to analyze various battery-related terms: (3) ˙Net energy density: the ratio of energy to capacity (or energy to standard), in watt hours/liter (Wh/L) or megajoules/liter (MJ/L); This number basically means the standard of battery sturdiness, but some manufacturers also point out that it is in Joules per liter (J/L). (3) ˙energy/consumer-price: in watt-hour/dollar 1 (Wh/dollar), the cost of different energy can be compared. Sometimes the scale and unit are opposite, such as USD/KJ (USD/KJ). Specific power: The ratio of power to components (or power to mass) in watts/kg (W/kg). This is different from the energy ratio. It refers to the amount of power that the battery can supply. When the load resistance is equal to the sum of the internal resistance of the battery and the resistance of all circuits and couplings, the maximum power will be transferred to the load current. But since the high I2R is lost, this situation is not very useful in terms of total energy transfer. (Battery): The smallest battery package unit that can trigger voltage through basic chemical reactions. If one battery does not have enough voltage, current, power or working time, several batteries can be connected together through a module or a larger package. Regarding certain chemicals, manufacturers of battery assemblies or modules must be trained or certified before they can be sold. This is based on specific requirements for safety, the use of related components, circuits, and chemical grids. (3) ˙Lithium equivalent lithium ion content (ELC): It is the general classification standard (in grams) of lithium batteries drawn up by the Lithium Battery Safety and Transportation Administration. The lithium content of 8 grams is approximately equivalent to 100 watt-hours; therefore, to calculate the lithium content of a lithium battery, it is necessary to multiply its watt-hours by 8/100. Maximum continuous discharge current (maximum continuous discharge current): The maximum current that a single battery can safely and continuously discharge, plus the maximum continuous discharge current (maximum continuous discharge current), basically does not degrade or damage the overall function of the battery. Maximum discharge current: the maximum current that the battery can discharge under the manufacturer's additional second pulse; the second is the additional recovery time. This number is generally defined by the battery manufacturer to prevent battery damage or loss of capacity due to over-discharge. (3) Cycle durability or cycle life: the number of charge and discharge cycles that the battery has experienced before reaching a specific functional standard; this cycle life is measured according to specific charge and discharge conditions. The actual battery life is affected by the rate and depth of the charge and discharge cycle and other factors such as temperature and humidity; the greater the depth of discharge, the shorter the cycle life. Charge and discharge efficiency: This is a percentage. It is the ratio of the energy transferred by practice (charge/discharge process) to the extra energy. The accounting formula is practical energy/extra energy x100. (1) ˙Net discharge rate: The amount of charge that the battery loses every month when there is no current load; even if there is no current load, the battery will still attack the slow chemical reaction and reduce the battery power, which is the battery inventory life important reason. (3)˙ refers to the battery voltage of the battery product declared by the battery manufacturer. This is usually the average discharge voltage of the battery during its lifetime. Terminal voltage: The transient voltage across the battery when a current load is applied (not through the load). This will vary with the state of charge, the history of charging and discharging currents, and the environment. (3) Open circuit voltage: the voltage passing through the battery terminals when there is no current. After the battery is charged in the best way, the open circuit voltage reaches its peak value in the freshest condition, and the chemical substances in some batteries can only reach the peak value after one or two charge and discharge cycles. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Common lithium battery characteristics and parameters