source:other news release time:2023-08-10 Hits: Popular:Lithium-ion battery wholesale
The electric vehicle battery pack is composed of multiple batteries stacked in series. A typical battery pack has approximately 96 batteries, which can generate a total voltage of over 400V when charged to 4.2V lithium-ion batteries. Although the automotive power system considers the battery pack as a single high-voltage battery, charging and discharging the entire battery pack each time, the battery control system must independently consider the situation of each battery. If the capacity of one battery in a battery pack is slightly lower than that of other batteries, then after multiple charging/discharging cycles, its charging state will gradually deviate from other batteries. If the charging state of this battery is not periodically balanced with other batteries, it will eventually enter a deep discharge state, leading to damage and ultimately forming a battery pack failure. To prevent this from happening, the voltage of each battery must be monitored to determine its charging state. In addition, there must be a device to charge or discharge the batteries separately to balance the charging state of these batteries.
An important consideration for the battery pack monitoring system is the communication interface. In terms of communication within PC boards, commonly used options include Serial Peripheral Interface (SPI) bus and I2C bus, each with low communication overhead and suitable for low interference environments. Another option is the Controller Area Network (CAN) bus, which is widely used in automotive applications. The CAN bus is very robust, with error detection and fault tolerance characteristics, but it has high communication overhead and material costs. Although the connection from the battery system to the car's main CAN bus is desirable, using SPI or I2C communication within the battery pack has advantages
Battery performance parameters
There are a wide variety of chemical batteries with varying performance. The commonly used indicators to characterize its performance include electrical performance, mechanical performance, storage performance, and sometimes also include usage performance and economic cost. We mainly introduce its electrical and storage properties. Electrical performance includes: electromotive force, rated voltage, open circuit voltage, working voltage, termination voltage, charging voltage, internal resistance, capacity, specific energy and specific power, storage performance and self discharge, lifespan, etc. The storage performance mainly depends on the self discharge size of the battery.
Read recommendations:
deep cell marine battery wholesaler
Medical Equipment Cylindrical Lithium Ion Battery 3.7V
Main risks in transportation of lithium-ion batteries.solar generator for rv
Battery package power monitoring circuit design.lithium marine batteries Processing
Last article:electromotive force.portable power station with solar panel
Next article:Composition of electric vehicles.best trolling motor battery
related suggestion
lithium marine batteries Factory
2023-03-22lithium ion golf cart batteries wholesale
2023-03-22solar energy storage Production
2023-03-20deep cycle trolling motor battery wholesaler
2023-04-07lithium trolling motor battery manufacturer
2023-03-22solar power storage company
2023-03-20lifepo4 12v
2023-05-08portable battery generators
2023-05-08solar generator amazon
2023-05-08solar powered electric generator
2023-05-08lifepo4 battery 12v 100ah
2023-05-08best solar generator
2023-05-0860V 80Ah Motive Battery Pack for AGV Robot
2023-02-14+85 Operating Lithium Battery Li Ion 18650 26650 Cell
2023-02-1412V Rechargeable Lithium Ion 18650 Battery Pack 2000mAh
2023-02-14Customizable LiFePo4 Battery for AGV Robot 60V 72V
2023-02-09Lithium Polymer Battery Pack for Smart Home Device
2023-02-14Advantages of Ni-MH battery
2023-02-21What are the characteristics of robot batteries?
2023-02-06Why does the low price of lithium iron phosphate make it more widely used?
2022-11-07Polymer battery classification.solar powered electric generator
2023-05-23Analyze how to exit Lithium iron phosphate battery safely?best battery for home inverter
2023-06-26Electric balance battery.deep cycle marine battery manufacturer
2023-05-06How does the 3C lithium-ion battery quality test work?
2022-12-07What is battery energy density?lithium ion golf cart batteries manufacture
2023-03-28Lithium battery 26650.best battery for home inverter
2023-05-25How to Pay Attention to the Storage of UPS Batteries.12v 100ah battery price
2023-08-25