Lithium titanate battery module for micro energy storage system and micro energy storage system

Abstract

The utility model discloses a lithium titanate battery module for a miniature energy storage system and the miniature energy storage system. The lithium titanate battery module comprises a plurality of sections of lithium titanate monomer cells, welding pole pieces connected with the plurality of sections of lithium titanate monomer cells, and a packaging film for packaging the plurality of sections of lithium titanate monomer cells, wherein the two ends of the plurality of sections of lithium titanate monomer cells are planes, and the plurality of sections of lithium titanate monomer cells are connected in series to form a lithium titanate battery module by adopting an aluminum row plane welding process; the lithium titanate battery module is provided with two reserved interfaces, one reserved interface is used for being connected with electric equipment through a wire, a switch is arranged on the wire, and the other reserved interface is used for being connected with a charger through a wire. The battery module formed by the lithium titanate single cells has the characteristics of strong stability, good safety, simple structure, easiness in operation, wide application, low self-loss power consumption and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of storage batteries, and in particular relates to a lithium titanate battery module for a micro energy storage system and a micro energy storage system. Background Art

[0002] As new battery technology and energy storage technology are widely used, the market demand and technical requirements for electrical equipment that needs to use mobile power supplies are constantly increasing. Small and miniaturized mobile power supplies and energy storage systems can provide power or charging for electrical equipment that is not convenient to connect to fixed power supplies. Different electrical equipment has different specific parameter requirements for voltage and current. A mobile power supply that matches its rated voltage and current is needed to meet the power needs of the electrical equipment.

[0003] At present, most of the energy storage systems for high-power electrical equipment are container-type energy storage using lithium iron phosphate batteries and ternary lithium batteries, which occupy a large area and are costly. There is no complete technical route for miniaturized and micro-sized energy storage systems used in limited and narrow spaces. Summary of the invention

[0004] In order to solve the above technical problems, the utility model proposes a lithium titanate battery module for a micro energy storage system to solve the problems existing in the above prior art.

[0005] To achieve the above object, the utility model provides a lithium titanate battery module for a micro energy storage system, comprising:

[0006] A plurality of lithium titanate single battery cells, welding electrodes for connecting the plurality of lithium titanate single battery cells, and a packaging film for packaging the plurality of lithium titanate single battery cells;

[0007] The two poles of the several lithium titanate single cells are flat, and the several lithium titanate single cells are connected in series into a lithium titanate battery module by adopting the process of aluminum bar flat welding; the lithium titanate battery module is respectively provided with two reserved interfaces, one of which is used to connect to the electrical equipment through a wire, and the wire is provided with a switch, and the other reserved interface is used to connect to the charger through a wire.

[0008] Preferably, the lithium titanate battery module further includes an insulating plate, and the insulating plate is used to fix the lithium titanate single cell.

[0009] Preferably, the insulating board is made of phenolic glass fiber material.

[0010] Preferably, the packaging film is a lithium battery PVC film.

[0011] Preferably, the switch is arranged on the outer surface of the packaging film to control the working state of the lithium titanate battery module in a feedback manner of the start and stop functions of the electrical equipment.

[0012] Preferably, the charger is used to be connected to an external AC power source.

[0013] In order to achieve the above technical objectives, the utility model provides a micro energy storage system, comprising at least one lithium titanate battery module for the micro energy storage system.

[0014] Preferably, a plurality of lithium titanate battery modules for the micro energy storage system are electrically connected via a series switch.

[0015] Compared with the prior art, the utility model has the following advantages and technical effects:

[0016] The utility model provides a lithium titanate battery module for a micro energy storage system, comprising: a plurality of lithium titanate single battery cells, welding electrodes connecting the plurality of lithium titanate single battery cells, and a packaging film for packaging the plurality of lithium titanate single battery cells; wherein two of the lithium titanate single battery cells are respectively provided with two reserved interfaces, one of the reserved interfaces is used to connect to an electrical device via a wire, and a switch is provided on the wire, and the other of the reserved interfaces is used to connect to a charger via a wire.

[0017] The lithium titanate battery module provided by the utility model can be used individually or in combination of multiple lithium titanate battery modules according to usage requirements. When in use, the input and output of the lithium titanate battery module can be controlled by a switch. The battery module composed of lithium titanate monomer cells has the characteristics of strong stability and good safety, simple structure, easy operation, wide application and low self-consumption of electricity, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 A schematic diagram of a lithium titanate battery module for a micro energy storage system according to an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the circuit connection of a lithium titanate battery module and its kit for a micro energy storage system according to an embodiment of the utility model;

[0021] Figure 3 This is a schematic diagram of the appearance of a lithium titanate battery module according to an embodiment of the present utility model;

[0022] Among them, 1-lithium titanate battery cell, 2-welding electrode, 3-insulating plate, 4-lithium battery PVC film, 5-wire, 6-charger, K-switch. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0025] Embodiment 1

[0026] like Figure 1-3 As shown, this embodiment provides a lithium titanate battery module for a micro energy storage system, including:

[0027] A plurality of lithium titanate single cells 1, welding electrodes 2 for connecting the plurality of lithium titanate single cells, and a packaging film for packaging the plurality of lithium titanate single cells;

[0028] The two poles of the several lithium titanate single cells are flat, and the several lithium titanate single cells are connected in series into a lithium titanate battery module by adopting the process of aluminum bar flat welding; the lithium titanate battery module is respectively provided with two reserved interfaces, one of which is used to connect to the electrical equipment through the wire 5, and the wire is provided with a switch, and the other reserved interface is used to connect to the charger 6 through the wire 5.

[0029] In this embodiment, the two poles of the lithium titanate single battery cell 1 do not have protruding battery columns, and are all flat designs. Therefore, a process of flat welding of aluminum bars is adopted to connect several lithium titanate single battery cells 1 in series into a lithium titanate battery module, that is, several lithium titanate single battery cells 1 are connected by welding the pole pieces 2;

[0030] Specifically, the packaging film is a lithium battery PVC film 4 .

[0031] The lithium titanate battery module further includes an insulating plate 3, and the insulating plate 3 is used to fix the lithium titanate single cell 1;

[0032] The insulating plate is made of phenolic glass fiber material, so that the battery module has sufficient physical strength while being insulated.

[0033] The switch K is arranged on the outer surface of the packaging film to control the working state of the lithium titanate battery module in a feedback manner of the start and stop functions of the electrical equipment.

[0034] Specifically, the switch K has the function of receiving the start and stop feedback of the electrical equipment, and controls the working state of the lithium titanate battery module in a feedback manner;

[0035] The charger is used to be connected to an external AC power source.

[0036] Specifically, the charger is arranged on the outside of the lithium titanate battery module; the charger has a voltage monitoring function for detecting the voltage of the battery cell and the voltage difference between the battery cells. Abnormal voltage or excessive voltage difference will trigger protective disconnection to ensure the safety of the battery module.

[0037] In this embodiment, during the processing of the lithium titanate battery module, the insulating plate 3 is first used to fix the wire 5, and then the lithium battery PVC film 4 is used to cover the several lithium titanate single cells. The size of the insulating plate is smaller than the size of the lithium titanate battery module to ensure that the lithium battery PVC film will not cause compression damage when covering.

[0038] The utility model has the following advantages and technical effects:

[0039] The lithium titanate battery module provided by the utility model can be used individually or in combination of multiple lithium titanate battery modules according to usage requirements. When in use, the input and output of the lithium titanate battery module can be controlled by a switch. The battery module composed of lithium titanate monomer cells has the characteristics of strong stability and good safety, simple structure, easy operation, wide application and low self-consumption of electricity, etc.

[0040] Embodiment 2

[0041] The utility model provides a micro energy storage system, comprising at least one lithium titanate battery module for a micro energy storage system according to the first embodiment.

[0042] The micro energy storage system includes multiple lithium titanate battery modules for micro energy storage systems according to the first embodiment. The multiple lithium titanate battery modules are electrically connected through series switches, providing corresponding technical solutions in different usage scenarios to protect the voltage stability between the series modules.

[0043] The above are only preferred specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A lithium titanate battery module for a micro energy storage system, characterized in that: include: A plurality of lithium titanate single battery cells, welding electrodes for connecting the plurality of lithium titanate single battery cells, and a packaging film for packaging the plurality of lithium titanate single battery cells; The two poles of the several lithium titanate single cells are flat, and the several lithium titanate single cells are connected in series into a lithium titanate battery module by adopting the process of aluminum bar flat welding; the lithium titanate battery module is respectively provided with two reserved interfaces, one of which is used to connect to the electrical equipment through a wire, and the wire is provided with a switch, and the other reserved interface is used to connect to the charger through a wire.

2. The lithium titanate battery module for a micro energy storage system according to claim 1, characterized in that: It also includes an insulating plate, which is used to fix the lithium titanate single battery cell.

3. The lithium titanate battery module for a micro energy storage system according to claim 2, characterized in that: The insulating board is made of phenolic glass fiber material.

4. The lithium titanate battery module for a micro energy storage system according to claim 1, characterized in that: The packaging film is a lithium battery PVC film.

5. The lithium titanate battery module for a micro energy storage system according to claim 1, characterized in that: The switch is arranged on the outer surface of the packaging film to control the working state of the lithium titanate battery module in a feedback manner of the start and stop functions of the electrical equipment.

6. The lithium titanate battery module for a micro energy storage system according to claim 1, characterized in that: The charger is used to be connected to an external AC power source.

7. A micro energy storage system, characterized in that: Comprising at least one lithium titanate battery module for a micro energy storage system as described in any one of claims 1 to 6.

8. The micro energy storage system according to claim 7, characterized in that: The lithium titanate battery modules for the micro energy storage system described in any one of claims 1 to 6 are electrically connected via a series switch.

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