The lithium battery protection board is the charge and discharge protection for the series lithium battery pack. Function: Effectively improve the charging effect under the series charging mode, and detect the overvoltage, undervoltage, overcurrent, short circuit, and overtemperature status of each single battery in the battery pack to protect and extend the battery life.
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Lithium battery protection board, as the name suggests, is used to protect lithium batteries, lithium battery protection board is to protect the battery but put, but charge, but flow, there is output short-circuit protection.
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The finished lithium battery consists of two main parts, lithium battery core and protection board, lithium battery core is mainly composed of positive plate, diaphragm, negative plate, electrolyte; The positive plate, diaphragm and negative plate are wound or stacked, packaged and injected with electrolyte, and the cell is made after encapsulation.
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Extended information:
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Type of lithium battery protection board:
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1, from the lithium battery overcharge and release function
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If the charge and discharge performance of the lithium battery is divided into two types, the protection board can be roughly divided into two types, one is a single function, that is, one-way overcharge protection of the battery, or over-discharge protection of the battery, the other is two-way protection, and has overcharge function and over-discharge function. At present, the bidirectional protection board is more widely used than the single protection board.
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2, from the combination of lithium battery pack to points
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The different series and parallel modes of the lithium battery pack also directly lead to the different lithium battery protection board, the battery pack can be roughly divided into series and parallel two categories, the series battery pack is to improve the overall voltage, the parallel battery pack is to improve the overall capacity. Therefore, the lithium battery protection board is also divided into two types according to the two connection methods of the battery pack.
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3, from the customer requirements
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Lithium battery protection board is used in various fields, but each field for the lithium battery pack voltage and current requirements are not the same, it is because of different parameter requirements, to determine the lithium battery protection board needs to change the internal components, to change the specific parameters of the protection board.
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4, from the quality of the board
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The plate of the lithium battery protection board is divided into a hard board, which is commonly known as a hard board, and this board is currently the most commonly used; The opposite is the soft board; There are also monolayers; The corresponding multilayer board; And double-layer plates; This is the most basic five kinds of plates, if these plates through different ways into the combination, will be divided into more types.