CN217822879U

CN217822879U - Battery removes passivating device

Info

Publication number: CN217822879U
Application number: CN202221631209.4U
Authority: CN
Inventors: 马嘉煜; 李�杰; 黄迦勒
Original assignee: Hangzhou Laison Technology Co ltd
Current assignee: Hangzhou Laison Technology Co ltd
Priority date: 2022-06-27
Filing date: 2022-06-27
Publication date: 2022-11-15
Anticipated expiration: 2032-06-27

Abstract

The utility model provides a battery removes passivating device, wherein it includes to remove passivating device: an MCU chip; an AD acquisition circuit; cement resistance; a MOS tube; the AD acquisition circuit is connected with the MCU chip, the cement resistor is connected with the MOS tube, the MOS tube is connected with the MCU chip, the AD acquisition circuit is connected with the battery, and the cement resistor is connected into the detection loop during detection. The depassivation device is provided with the cement discharge resistor, so that when the cement discharge resistor is connected into a loop, high-current discharge and depassivation can be realized, and the voltage hysteresis phenomenon of the battery after delivery can be eliminated.

Description

Battery removes passivating device

Technical Field

The utility model relates to a battery testing technical field, in particular to battery removes passivating device.

Background

The sub-battery is a non-rechargeable lithium metal battery, and both the electrolyte and the positive electrode material are thionyl chloride. When the metal lithium and thionyl chloride are in chemical reaction, a lithium chloride oxidation product can be generated and attached to the surface of the metal lithium to form a compact passivation film, so that the chemical reaction of the thionyl chloride and the lithium metal is effectively inhibited, the protection of the metal lithium of the negative electrode is achieved, and the battery can be stored for a long time. In the process of storing the lithium thionyl chloride battery for a long time, the passivation film is gradually thickened due to extremely slow internal chemical reaction, the internal resistance of the lithium thionyl chloride battery is continuously changed along with time due to the passivation film, the large-current pulse output capacity of the battery is reduced, the battery is connected with a load for the first time, the instantaneous minimum voltage is possibly lower than the applied cut-off voltage, and the voltage hysteresis phenomenon occurs.

SUMMERY OF THE UTILITY MODEL

The utility model discloses one of them aim at provides a battery removes passivating device, it is through setting up cement discharge resistance to remove the passivating device, works as when cement discharge resistance inserts in the return circuit, can realize that the heavy current discharges and goes the passivation to can remove the battery and dispatch from the factory after voltage hysteresis.

Another object of the utility model is to provide a battery removes passivating device, it sets up section sign indicating number pipe to remove passivating device, section sign indicating number union coupling removes the treater of passivating device, through section sign indicating number pipe can set up voltage threshold to judge whether current voltage satisfies voltage threshold, can improve the efficiency that the battery detected.

Another object of the utility model is to provide a battery removes passivating device, it is provided with the button to remove passivating device to the internal processor of key-press connection, internal processor self is provided with the physics switch, the changeable different detection mode of different physics switches, the detection of consequently being convenient for to the battery with remove the passivation operation.

In order to realize at least one above-mentioned utility model purpose, the utility model provides a remove passivating device, wherein it includes to remove passivating device:

an MCU chip;

an AD acquisition circuit;

cement resistance;

an MOS tube;

the AD acquisition circuit is connected with the MCU chip, the cement resistor is connected with the MOS tube, the MOS tube is connected with the MCU chip, the AD acquisition circuit is connected with the battery, and the cement resistor is connected into the detection loop when in detection.

According to one of the preferred embodiments of the present invention, the passivation apparatus further comprises a key, and the key is connected to the MCU chip.

According to the utility model discloses another preferred embodiment, remove passivating device still includes LDO voltage conversion circuit, LDO voltage conversion circuit connects the MCU chip.

According to another preferred embodiment of the present invention, the depassivation device further comprises a USB interface, and the USB interface is connected to the LDO voltage converting circuit.

According to the utility model discloses another preferred embodiment, depassivation device still includes the battery interface, battery interface connection battery, and battery interface connection the AD acquisition circuit.

According to the utility model discloses another preferred embodiment, remove passivating device still includes the section sign indicating number pipe, section sign indicating number union coupling the MCU chip.

According to the utility model discloses another preferred embodiment, depassivation device still includes the LED pilot lamp, the LED pilot lamp is connected the MCU chip.

According to the utility model discloses another preferred embodiment, depassivation device still includes the casing, install on the casing the LED pilot lamp.

According to the utility model discloses another preferred embodiment cement resistance both ends are connected respectively the positive negative pole of battery interface establish the detection return circuit on the battery interface.

Drawings

Fig. 1 is a schematic diagram showing an internal circuit structure of a device for depassivating a battery according to the present invention.

Fig. 2 is a schematic front view of the apparatus for depassivating a battery according to the present invention.

Wherein

Cement resistor-1, battery interface-2, key-3, segment code tube-4 and USB interface-5.

Detailed Description

The following description is provided to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art. The underlying principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the terms are used in the description to indicate that the referenced device or element must have the specified orientation, be constructed and operated in the specified orientation, and not for the purpose of limitation.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1-2, the present invention provides a device for removing passivation from a battery, the device mainly comprises: the device comprises an MCU chip, an AD acquisition circuit, a cement resistor and an MOS tube, wherein the MCU chip is connected with the AD acquisition circuit and the MOS tube in a distributed manner, the MOS tube is connected with the MCU chip, the AD acquisition circuit is connected with a battery to be detected and used for detecting the discharge voltage of the battery to be detected, and the cement resistor forms a complete detection loop so that the battery to be detected can realize heavy current discharge and the passivation removing effect of the battery to be detected is realized.

Specifically, referring to fig. 2, the depassivation device includes a battery interface, the battery interface is connected to the AD sampling circuit, and the cement resistor is connected to the battery interface to construct a detection loop. The device comprises an MCU chip, a USB interface, a depassivation device, a USB interface, an external power supply, a USB voltage converter and a power supply, wherein the depassivation device is further connected with the LDO voltage converter, the LDO voltage converter is respectively connected with the MCU chip and the USB interface, the USB interface is connected with the external power supply and can supply power to the MCU chip by connecting the external power supply, and the LDO voltage converter is used for providing stable voltage so as to realize stable power supply to the MCU.

Wherein the depassivation device is further provided with a key, wherein the key is connected with the MCU chip, the MCU can be switched to different modes by constructing, for example, but not limited to, a contact switch through the key, and the different switches are turned off, wherein the modes switchable by the switch constructed by the key in the present invention include: a test mode, a set mode and a discharge mode. And the MCU chip is connected with the MCU chip and further comprises a segment code tube, wherein a voltage threshold value can be set in the segment code tube, and whether the detected battery voltage reaches the preset voltage threshold value or not is displayed through an LED indicating lamp. Wherein the utility model discloses set up two buttons, be respectively for setting up mode button and numerical value adjustment button, please refer to fig. 2, the utility model discloses set up the mode button and be the right button, the numerical value adjustment button that corresponds is the button on the left side, and can make through the mode that the weak point was pressed mode adjustment button also can regard as numerical value adjustment button to use.

The utility model discloses further explain the working process of above-mentioned 3 modes: the utility model discloses at first be connected to through supply circuit provide 5V/0.1A's power supply on the USB interface. Before testing, the resistor is configured according to the model of the battery to be tested, and the power supply is provided. The MCU chip is switched into a setting mode by long pressing a setting mode key of preset time, and at the moment, a voltage threshold value on the segment code tube can be set to judge whether the voltage threshold value on the segment code tube meets the requirement or not. If the requirements are not met, the adjustment can be carried out by pressing the numerical value adjusting key or the mode setting key for a short time. And after the voltage is set, pressing the setting mode key for a long time again to switch to a test mode at preset time, connecting the battery which leaves the factory, and testing the no-load voltage of the battery which leaves the factory to determine whether the no-load voltage meets the requirement. If the requirement is met, a set mode key is pressed for a long time to switch to a discharge mode in a preset time, the cement resistor is connected into a loop to perform large-current discharge to eliminate passivation, the voltage of the battery under the large-current discharge elimination of passivation gradually rises until a set voltage threshold is reached, a discharge circuit is cut off, meanwhile, an LED lights up to indicate that the depassivation is completed, a factory battery is pulled out, the device AD detects 0V, the test mode is automatically switched to the test mode, and the next factory battery is connected in.

Above-mentioned utility model exists following advantage: the utility model discloses a remove passivating device structure is small and exquisite, and convenient operation carries out the mode switch through setting up the mode button, can get into test mode, set up the mode and discharge the mode. In the test mode, the no-load voltage can be checked to see whether the output voltage of the battery is normal or not; in the setting mode, the proper threshold voltage can be set for different batteries and different resistors can be replaced; in the discharging mode, the circuit is automatically cut off after a preset discharging value is reached, and the lamp is turned on for prompting.

It is understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not intended to limit the present invention, the objects of the present invention have been fully and effectively achieved, the functions and structural principles of the present invention have been shown and described in the embodiments, and any modifications or changes can be made to the embodiments of the present invention without departing from the principles.

Claims

1. A battery depassivation apparatus, wherein the depassivation apparatus comprises:

an MCU chip;

an AD acquisition circuit;

cement resistance;

an MOS tube;

the AD acquisition circuit is connected with the MCU chip, the cement resistor is connected with the MOS tube, the MOS tube is connected with the MCU chip, the AD acquisition circuit is connected with the battery, and the cement resistor is connected into the detection loop when being detected.

2. The battery depassivation device according to claim 1, wherein the depassivation device further comprises a key, the key being connected to the MCU chip.

3. The device of claim 1, further comprising an LDO voltage conversion circuit, the LDO voltage conversion circuit being connected to the MCU chip.

4. The battery depassivation device according to claim 3, wherein the depassivation device further comprises a USB interface, the USB interface being connected to the LDO voltage conversion circuit.

5. The battery depassivation device of claim 1, wherein the depassivation device further comprises a battery interface, the battery interface is coupled to a battery, and the battery interface is coupled to the AD acquisition circuit.

6. The device of claim 1, further comprising a segment code tube, wherein the segment code tube is connected to the MCU chip.

7. The device of claim 1, further comprising an LED indicator connected to the MCU chip.

8. The battery depassivation device of claim 7, wherein the depassivation device further comprises a housing on which the LED indicator light is mounted.

9. The battery depassivation device according to claim 5, wherein the cement resistor is connected at its two ends to the positive and negative electrodes of the battery interface, respectively, and a detection circuit is constructed at the battery interface.