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Lithium battery module

Lithium batteries are becoming increasingly popular in a wide range of applications from consumer electronics to electric vehicles. But what’s the technology behind these batteries that makes them so powerful?

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Certifications and Standards

There are several important certifications and standards that lithium battery modules must meet in order to be used in various applications. These include the UN38.3 Transportation of Dangerous Goods Test, IEC 62133 Safety Standard for Portable Lithium Batteries, UL 1642 Standard for Safety for Lithium Batteries, and more.

Lithium battery modules must undergo rigorous testing in order to receive these certifications and standards. The UN38.3 Transportation of Dangerous Goods Test is a set of international standards that regulate the shipment of dangerous goods such as lithium batteries. IEC 62133 is the safety standard for portable lithium batteries, and covers aspects such as design, manufacture, storage, transportation, and disposal. UL 1642 is the standard for safety for lithium batteries, covering topics such as flammability, overcharge protection, and short-circuit protection.

meeting these certifications and standards ensures that lithium battery modules are safe to use in a variety of applications.

feature

design attributes

Name	Technical parameter
Cell type	LFP48173170E-120Ah
product	The fifth generation
Module model	HJESLFP-38240	HJESLFP-76120
compound mode	2P12S	1P 24S
nominal voltage (V)	38.4	76.8
Rated capacity (Ah)	240	120
Nominal energy (kWh)	9.216	9.216
Standard charging current (A)	120(0.5C)	120(1C)
Maximum charging current (A)	150(0.625C)@5S	150(1.25C) @5S
Standard discharge current (A)	120(0.5C)	120(1C)
Maximum discharge current (A)	150(0.625C) @5S	150(1.25C) @5S
cooling-down method	natural air cooling	Forced air cooling (power adjustment)
running voltage (V)	33.6~43.2	67.2~86.4
Size (width, depth and height) (mm)	468×642×202	468×642×202
weight (kg)	90±1.5	90±1.5

IV curve

A lithium battery module IV curve is a graphical representation of the discharge characteristics of a lithium ion battery. The x-axis represents the discharge current in amperes and the y-axis represents the voltage across the battery terminals. The area under the curve represents the total energy delivered by the battery during discharge.

The shapes of lithium battery module IV curves vary depending on the type of cell chemistry and the design of the cell. LiCoO2 cells typically have a flat discharge profile with little change in voltage until almost all of the capacity has been discharged. LiFePO4 cells typically have a more gradual drop in voltage as they discharge.

Cell designers can tailor the shape of the discharge curve to match the needs of a particular application. For example, if an application requires a long run time at a constant voltage, a cell with a flatter discharge curve may be used. If an application requires high power output for a short period of time, a cell with a steeper discharge curve may be used.

Electrical performance

A lithium battery module is a high performance, reliable and safe power solution for a wide range of applications. Lithium battery modules offer superior energy density and extended life cycles compared to other battery chemistries, making them the ideal choice for high performance applications that require long run times and/or frequent cycling.

Lithium battery modules can be designed with a variety of different cell types and configurations to meet the specific needs of the application. The most common cell types used in lithium battery modules are 18650 cells, which are widely used in laptops, electric vehicles and solar energy storage systems.

Lithium battery modules can be configured in a number of different ways to meet the specific voltage, capacity and discharge rate requirements of the application. For example, a 48V 10Ah lithium battery module could be made up of 4 x 12V 10Ah cells connected in series. This particular configuration would be suitable for applications that require a high voltage and moderate discharge rate, such as electric vehicles.

The electrical performance of a lithium battery module is determined by a number of factors, including the type and configuration of the cells used, the operating temperature and the design of the module itself. In general, lithium battery modules exhibit excellent electrical performance, with high energy density, long life cycles and low self-discharge rates.

Electrical performance parameters

A lithium battery module typically contains a number of lithium cells connected in series and/or parallel. The electrical performance parameters of a lithium battery module depend on the number and type of cells used, as well as the configuration of the cells (series, parallel, or series-parallel).

The most important electrical performance parameters for a lithium battery module are the nominal voltage and capacity. The nominal voltage is determined by the number of cells in the module and the type of cells used. Capacity is a measure of how much energy the module can store, and is usually expressed in amp-hours (Ah) or watt-hours (Wh).

Other important electrical performance parameters include discharge current, charge current, maximum charge voltage, and minimum discharge voltage. These parameters determine how quickly the module can be charged and discharged, and how much power it can deliver.

The self-discharge rate is also an important parameter to consider, as it determines how much energy the module will lose over time when not in use. Generally speaking, lithium battery modules have very low self-discharge rates compared to other types of batteries.

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JS SOLAR was established in 2007 and is located in Wuxi City. Specializing in the production of solar products, such as solar cells, solar photovoltaic panels, solar inverters, mounting systems, etc.

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