CN218939456U

CN218939456U - High-voltage lithium ion capacitor module

Info

Publication number: CN218939456U
Application number: CN202223116572.5U
Authority: CN
Inventors: 赵丹丹; 李银磊; 臧晓波
Original assignee: Kunshan Kunpeng Lijie Polymer Material Technology Co ltd
Current assignee: Kunshan Kunpeng Lijie Polymer Material Technology Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-28
Anticipated expiration: 2032-11-23

Abstract

The utility model discloses a high-voltage lithium ion capacitor module, which comprises a shell, a battery cell, a tab adapter plate, a circuit board and a plurality of electric connectors, wherein the battery cell, the tab adapter plate and the circuit board are placed in the shell, the electric connectors are welded with the circuit board, the battery cell is formed by overlapping and connecting a plurality of monomers in series, a pressure test film and a cooling liquid guide pipe are arranged between two adjacent monomers, the positive tab and the negative tab of any one monomer pass through a through hole on a tab connecting plate, the positive tab of any one monomer is connected with the negative tab of the next adjacent monomer, the negative tab is connected with the positive tab of the previous adjacent monomer, the non-connected tab of the uppermost end and the non-connected tab of the lowermost end are welded at the corresponding position of the circuit board, the series connection among the monomers is formed, and temperature control probes are arranged around the battery cell. The utility model adopts various modes to effectively detect and cool the temperature of the battery cell, thereby improving the use safety of the battery cell.

Description

High-voltage lithium ion capacitor module

Technical field:

the utility model relates to the field of capacitors, in particular to a high-voltage lithium ion capacitor module.

The background technology is as follows:

the lithium ion super capacitor is a novel energy storage device and is a product of fusion of the super capacitor and a lithium ion battery. Compared with a lithium ion battery, the lithium ion super capacitor has the advantages of lower use temperature, high charge and discharge speed and long cycle life. Compared with an electric double layer super capacitor, the lithium ion super capacitor has large capacity, higher energy density and larger market potential in the field of energy storage.

The current lithium ion capacitor operating voltage is limited by the electrochemical window of the carbon electrode material in the organic electrolyte solution, typically 2.3-2.7V. Along with the continuous expansion of super capacitor application field, market improves super capacitor monomer performance for monomer voltage improves to 4.1V, however high-voltage super capacitor's inside temperature is higher when using, produces the potential safety hazard easily, so the range of application is less.

The utility model comprises the following steps:

aiming at the deficiency and the deficiency of the prior art, the utility model provides a high-voltage lithium ion capacitor module.

The present utility model achieves the technical object by the following means.

The utility model provides a high voltage lithium ion capacitor module, includes the casing, places electric core, utmost point ear keysets and circuit board in the casing to and with circuit board welded multiple electric connector, the electric core is overlapped the series connection by a plurality of monomers and is formed, is equipped with pressure test membrane and coolant liquid honeycomb duct between two adjacent monomers, the positive pole utmost point ear of monomer and negative pole utmost point ear all pass the via hole on the utmost point ear connecting plate, and the positive pole utmost point ear of arbitrary monomer is connected with the negative pole utmost point ear of next adjacent monomer, and the negative pole utmost point ear is connected with the positive pole utmost point ear of the preceding adjacent monomer, and the upper end welds the corresponding position at the circuit board with the free utmost point ear of being connected of lower extreme monomer, forms the series connection between a plurality of monomers, be equipped with the control by temperature change probe around the electric core.

Preferably, an epoxy board is arranged between the battery cell and the shell.

Preferably, the cooling liquid guide pipe and the temperature control probe are positioned between the battery cell and the epoxy plate.

Preferably, the electric connector comprises a start-up key connector, a charge-discharge connector and a communication connector.

The beneficial effects are that: the high-voltage lithium ion capacitor module disclosed by the utility model has the following beneficial effects:

the lithium ion supercapacitor monomers with high consistency of capacity, internal resistance and cycle life are assembled in series, so that the module voltage of the supercapacitor is improved, higher working voltage can be provided when the supercapacitor is used, and meanwhile, a plurality of monomer laminates are connected in series, so that the assembling structure of the supercapacitor can be simplified, the space utilization efficiency of the supercapacitor module is improved, and the application range of the supercapacitor is enlarged;

the pressure test membrane between the monomers is used for testing the internal pressure of the module, the cooling liquid guide pipe is used for reducing the temperature of the module, the temperature control probe arranged outside the battery cell detects the temperature of the module in real time, and the use safety of the module is improved through combination of multiple modes.

Drawings

FIG. 1 is a top cross-sectional view of an embodiment of the present utility model;

FIG. 2 is a front cross-sectional view of an embodiment of the present utility model;

fig. 3 is a structural diagram of a tab adapter in an embodiment of the present utility model.

In the figure: the device comprises a shell, a battery core, a 3-lug adapter plate, a 4-circuit board, a 5-epoxy plate, a 6-temperature control probe, a 7-via hole, an 8-pressure test membrane, a 9-cooling liquid guide pipe, a 10-start key connector, an 11-charge and discharge connector and a 12-communication connector.

Detailed Description

For a further understanding of the present utility model, preferred embodiments of the utility model are described below with reference to the drawings and examples, but it is to be understood that these descriptions are only intended to illustrate further features and advantages of the utility model and are not limiting of the utility model claims.

As shown in fig. 1 to 3, the high-voltage lithium ion capacitor module comprises a shell 1, a battery cell 2 arranged in the shell 1, a tab adapter plate 3 and a circuit board 4 arranged on one side in the shell 1, various connectors welded on the circuit board, an epoxy plate 5 coated outside the battery cell, and a temperature control probe 6 positioned between the epoxy plate and the battery cell and used for detecting the internal temperature of the module.

Specifically, the battery core is formed by overlapping and connecting a plurality of monomers in series, the single positive electrode tab and the single negative electrode tab all penetrate through the through hole 7 on the tab connecting plate, the positive electrode tab of any one monomer is connected with the negative electrode tab of the next adjacent monomer, the negative electrode tab is connected with the positive electrode tab of the previous adjacent monomer, the uppermost end and the non-connected tab of the bottommost monomer are welded at the corresponding position of the circuit board to form series connection among the plurality of monomers, namely, the first single positive electrode tab from top to bottom is welded with the circuit board, the negative electrode tab is connected with the positive electrode tab of the second monomer, the negative electrode tab of the second monomer is connected with the positive electrode tab of the third monomer, and the like until the last monomer is welded with the circuit board.

When overlapping series connection, in order to promote the security performance of electric core, be equipped with pressure test membrane 8 and coolant liquid honeycomb duct 9 between two adjacent monomers, wherein pressure test membrane is used for the pressure value between the electric core monomer when the test was used to in time know the monomer deformation condition, and coolant liquid honeycomb duct is then used for letting in the coolant liquid, carries out whole cooling to the electric core, prevents the electric core because the damage of high temperature.

The various connectors welded on the circuit board are electrically connected with the external connection, and the connectors comprise a start-up key connector 10, a charge-discharge connector 11 and a communication connector 12.

According to the high-voltage lithium ion capacitor module disclosed by the utility model, a stacked series assembly mode is adopted, so that the module voltage of the super capacitor is improved, the space utilization efficiency of the capacitor module is improved, meanwhile, the temperature detection and the temperature reduction of the battery core are effectively carried out in a plurality of modes, and the use safety of the battery core is improved.

The foregoing is a preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way, and any simple modification or variation of the above embodiment according to the technology of the present utility model is within the scope of the present utility model.

Claims

1. A high-voltage lithium ion capacitor module is characterized in that: the battery cell is formed by overlapping and connecting a plurality of monomers in series, a pressure test film and a cooling liquid flow guide pipe are arranged between two adjacent monomers, the anode tab and the cathode tab of each monomer pass through a through hole on a tab connecting plate, the anode tab of any one monomer is connected with the cathode tab of the next adjacent monomer, the cathode tab is connected with the anode tab of the previous adjacent monomer, and the upper end and the lower end of each monomer are welded at the corresponding positions of the circuit board, so that series connection among the monomers is formed, and temperature control probes are arranged around the battery cell.

2. The high voltage lithium ion capacitor module of claim 1, wherein: an epoxy plate is arranged between the battery cell and the shell.

3. The high voltage lithium ion capacitor module of claim 2, wherein: the cooling liquid guide pipe and the temperature control probe are positioned between the battery cell and the epoxy plate.

4. The high voltage lithium ion capacitor module of claim 1, wherein: the electric connector comprises a start-up key connector, a charge-discharge connector and a communication connector.