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The theory of Lithium charge and discharge & the design of electricity calculation method(3)
The theory of Lithium charge and discharge & the design of electricity calculation method 2.4 Dynamic voltage algorithm electricity meter The dynamic voltage algorithm coulometer can calculate the state of charge of lithium battery only according to the battery voltage. This method estimates ...Read more -
The theory of Lithium charge and discharge & the design of electricity calculation method(2)
The theory of Lithium charge and discharge & the design of electricity calculation method 2. Introduction to battery meter 2.1 Function introduction of electricity meter Battery management can be considered as part of power management. In battery management, the electricity meter is responsib...Read more -
The theory of Lithium charge and discharge & the design of electricity calculation method（1）
1. Introduction to lithium-ion battery 1.1 State of Charge (SOC) State of charge can be defined as the state of available electric energy in the battery, usually expressed as a percentage. Because the available electric energy varies with the charging and discharging current, temperature and agin...Read more -
Lithium battery overcharge mechanism and anti-overcharge measures（2）
In this paper, the overcharge performance of a 40Ah pouch battery with positive electrode NCM111+LMO is studied through experiments and simulations. The overcharge currents are 0.33C, 0.5C and 1C, respectively. The battery size is 240mm * 150mm * 14mm. (calculated according to the rated voltage o...Read more -
Lithium battery overcharge mechanism and anti-overcharge measures（1）
Overcharging is one of the most difficult items in the current lithium battery safety test, so it is necessary to understand the mechanism of overcharging and the current measures to prevent overcharging. Picture 1 is the voltage and temperature curves of the NCM+LMO/Gr system battery when it is ...Read more -
Risk and safety technology of lithium ion battery (2)
3. Security technology Although lithium ion batteries have many hidden dangers, under specific conditions of use and with certain measures, they can effectively control the occurrence of side reactions and violent reactions in the battery cells to ensure their safe use. The following is a brief i...Read more -
Risk and safety technology of lithium ion battery (1)
1. Risk of lithium ion battery Lithium ion battery is a potentially dangerous chemical power source due to its chemical characteristics and system composition. （1）High chemical activity Lithium is the main group I element in the second period of the periodic table, with extremely active ...Read more -
Talking about Battery pack core components-battery cell (4)
Disadvantages of lithium iron phosphate battery Whether a material has the potential for application and development, in addition to its advantages, the key is whether the material has fundamental defects. At present, lithium iron phosphate is widely selected as the cathode material of power lith...Read more -
Talking about Battery pack core components-battery cell (3)
Advantages of lithium iron phosphate batteries 1. Improvement of safety performance The P-O bond in the lithium iron phosphate crystal is stable and difficult to decompose. Even at high temperature or overcharge, it will not collapse and generate heat like lithium cobalt oxide or form strong oxid...Read more -
Talking about Battery pack core components-battery cell (2)
Overdischarge to zero voltage test: The STL18650 (1100mAh) lithium iron phosphate power battery was used for the discharge to zero voltage test. Test conditions: 1100mAh STL18650 battery is fully charged with a 0.5C charge rate, and then discharged to a battery voltage of 0C with a 1.0C di...Read more -
Talking about Battery pack core components-battery cell (1)
Talking about Battery pack core components-battery cell (1) Most of the batteries used in the mainstream PACKs on the market are lithium iron phosphate batteries. “Lithium iron phosphate battery”, the full name of lithium iron phosphate lithium ion battery, the name is too long...Read more -
New-Product-Launch Lifepo4 stack energy storage system battery
IHT launched its latest product,51.2V Lifepo4 stack battery. The stack battery consist of upto 5 pieces of lithium battery modules and the control box，the latest and fashion case，Modular design avails independent maintenance and quick installation & easy operation. It’s 485/232/Can optiona...Read more
