source:other news release time:2022-11-24 Hits: Popular:Lithium-ion battery wholesale
(1) Internal resistance of lithium ion batteries The internal resistance of lithium ion batteries consists of factors that prevent lithium ions from moving from one electrode to another. Its important part includes the physical internal resistance of conductive parts; The inherent impedance of electrochemical materials such as motor materials, diaphragms and electrolytes; When there is current in the battery, obstacles for lithium ion movement are temporarily added; These three parts together constitute the main body of internal resistance. The internal resistance is most sensitive to temperature. The internal resistance will change greatly at different temperatures. One of the important reasons for the low temperature performance degradation of batteries is the excessive internal resistance of batteries at low temperatures. As a power supply, the smaller the internal resistance, the better. Especially in the case of power supply applications, small internal resistance is a necessary condition
(2) Capacity The capacity of a lithium ion battery, the measurable capacity, refers to the maximum power that can be charged and discharged within the reasonable maximum and minimum voltage range of the battery. Before loading the monomer onto the vehicle, the capacity of the monomer can be measured by charging and discharging. Once in the vehicle, the battery capacity can only be estimated by algorithm. In the battery management system BMS, the accurate estimation of SOC is an important indicator to measure its design level. The capacity of monomer is obviously affected by aging degree. As we all know, when the capacity decays to the limit value, that is, when the battery is eliminated, it can be seen that there is an absolute correlation between the two. Secondly, the capacity is also affected by temperature. At low temperature, the activity of active substances decreases, the available ions decrease, and the capacity inevitably decreases
(3) To be exact, the power here should be the specific power, which is the charging and discharging power capacity of a single object, or the charging and discharging power capacity of a battery per unit mass or volume. The power lithium-ion battery is a power lithium-ion battery. Its important feature is to support high rate charging and discharging, up to 10C. The important parameter to consider is the specific function (wkg). Whether lithium ion batteries can be charged and discharged with high power has become an important issue in the design. It is also made of lithium iron phosphate or ternary materials. The power performance of the battery can be adjusted by adopting technological means, changing the electrode thickness or adding additives, adjusting the active substance structure, electrolyte performance and electrode SEI film performance. In general, power performance and energy density cannot coexist. If the same material pursues high power, it will sacrifice part of the energy density
Read recommendations:
Application direction of lithium batteries.portable power station for camping
Last article:Do ternary lithium and lithium iron phosphate affect the performance of electric vehicles?
Next article:How many life cycles does a lithium-ion battery have?
related suggestion
lifepo4 solar battery sales
2023-04-07deep cycle trolling motor battery
2023-04-07lithium marine batteries Production
2023-03-20lithium trolling motor battery Factory
2023-03-22deep cycle marine battery wholesale
2023-03-20lifepo4 24v Production
2023-04-07solar energy generator
2023-05-08golf cart batteries for sale
2023-05-08best solar generator for home backup
2023-05-08solar energy storage batteries
2023-05-08lithium deep cycle marine battery
2023-05-08lifepo4 battery 12v 100ah
2023-05-0818650 26650 Low Temperature Lithium Ion Battery Cell
2023-02-14Golf Cart 51.2V 105Ah LiFePo4 Battery Pack IP67 Waterproof with Bluetooth
2022-09-293600W 5120Wh solar power station lifepo4 battery portable with wheels
2023-06-0720kwh 30kwh 40kwh High Power Lithium Battery 307V 100Ah For Solar Energy Storage System
2023-02-14+85 Operating Lithium Battery Li Ion 18650 26650 Cell
2023-02-14Balanced principle of battery pack
2023-02-15What are some tips to make the failure rate of electric cars smaller? Live longer?
2022-11-01The main hazards of 3c lithium-ion batteries are.portable power station for camping
2023-09-04What are the low temperature heating methods of lithium batteries?
2023-03-06What causes the lithium battery to overheat?
2022-11-03Prevention of battery protection board explosion
2023-02-17What are the characteristics of lead carbon batteries?
2022-11-03What is a lithium ion button battery?
2023-02-01What are the types of energy storage batteries?
2022-11-08What are the differences between polymer lithium batteries and lithium batteries.solar powered batte
2023-05-06