Battery electrolyte preparation system

Abstract

The utility model relates to the technical field of battery preparation equipment, in particular to a battery electrolyte preparation system, which mainly comprises a heater and a temperature sensor which are covered on the outer surface of a liquid preparation bottle, the heater is connected with a temperature controller, and a magnetic stirrer is arranged at the bottom in the liquid preparation bottle. And an electric stirrer is arranged below the liquid preparation bottle and is used for mounting a magnet to drive the magnetic stirrer to rotate. During use, the electric stirrer is turned on, the arranged magnet drives the magnetic stirrer to rotate normally, the temperature of the heater is set through the temperature controller, and under the constant-temperature condition of the heater, the lithium belt layer reacts with water in electrolyte, so that the water value is controlled at a lower level. Through the structure, moisture in the electrolyte can be removed to a certain extent, so that the possibility of influencing the battery performance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of battery preparation equipment, and particularly relates to a battery electrolyte configuration system. Background Art

[0002] The lithium / thionyl chloride battery belongs to the series of primary lithium batteries. During the production process of the lithium / thionyl chloride battery, it is necessary to prepare the lithium / thionyl chloride electrolyte, and this electrolyte preparation work needs to be completed in a specific system; the electrolyte preparation needs to be carried out in a dry environment, the electrolyte needs to be purified, and the content of trace water and impurities that react with metallic lithium in the electrolyte need to be controlled within a certain range.

[0003] Therefore, in the existing electrolyte preparation system, there is no heating device for electrolyte preparation. Lithium tetrachloroaluminate as the solute is added to thionyl chloride as the solvent, and by stirring the electrolyte, lithium tetrachloroaluminate is dissolved in thionyl chloride to complete the preparation of the lithium / thionyl chloride electrolyte. However, when preparing the electrolyte, it is not easy to remove water, and the water content of the electrolyte may exceed the technical conditions, which affects the battery performance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a battery electrolyte configuration system to solve the problem of water existing in the prior art.

[0005] The embodiments of the utility model are realized by the following technical solutions:

[0006] A battery electrolyte configuration system includes a drying room, an operation platform and a liquid preparation bottle arranged in the drying room, and the liquid preparation bottle is arranged on the operation platform;

[0007] A heater and a temperature sensor are covered and arranged on the outer surface of the liquid preparation bottle, the heater is connected with a temperature controller, a magnetic stirrer is arranged at the bottom inside the liquid preparation bottle, an electric stirrer is arranged below the liquid preparation bottle, the electric stirrer is used for installing a magnet to drive the magnetic stirrer to rotate, and a lithium strip layer is arranged in the middle of the liquid preparation bottle;

[0008] The drying room is provided with a ventilation channel, and the ventilation channel is connected with a dehumidifier.

[0009] In an embodiment of the utility model, it further includes a humidity sensor arranged in the drying room, and an opening control device is arranged at the bottle mouth of the liquid preparation bottle, and the opening control device is used for controlling the opening size of the bottle mouth.

[0010] In an embodiment of the utility model, the opening control device includes a pushing device and a conical bottle cap, the telescopic end of the pushing device is connected with the top of the conical bottle cap, and the pushing device is detachably connected with the top of the liquid preparation bottle.

[0011] In an embodiment of the present utility model, the pushing device includes an electric telescopic rod and a support frame. The electric telescopic rod is arranged at the top of the support frame, and the bottom of the support frame is detachably connected to the top of the liquid dispensing bottle through a connecting device.

[0012] In an embodiment of the present utility model, the connecting device includes a connecting piece arranged at the bottom of the support frame and a positioning block arranged at the top of the liquid dispensing bottle. A first through hole for passing through the positioning block is formed in the middle of the connecting piece, and a clamping device is arranged on one side of the positioning block for fixing the connecting piece.

[0013] In an embodiment of the present utility model, the clamping device includes a second through hole opened on one side of the positioning block and a blocking piece sliding on the top of the liquid dispensing bottle. The blocking piece is in the same straight line as the second through hole.

[0014] In an embodiment of the present utility model, a processing unit is further included, and the processing unit is electrically connected to the humidity sensor and the electric telescopic rod.

[0015] The technical solution of the embodiment of the present utility model has at least the following advantages and beneficial effects:

[0016] Adopting the structure provided by the present utility model mainly includes that a heater and a temperature sensor are covered on the outer surface of the liquid dispensing bottle. The heater is connected to a temperature controller. A magnetic stirrer is arranged at the bottom inside the liquid dispensing bottle, and an electric stirrer is arranged below the liquid dispensing bottle. The electric stirrer is used to install a magnet to drive the magnetic stirrer to rotate. When in use, the electric stirrer is turned on, and the magnetic stirrer is driven to rotate normally through the arranged magnet. The temperature of the heater is set through the temperature controller. Under the constant temperature condition of the heater, the lithium strip layer reacts with the moisture in the electrolyte to control the moisture value at a lower level. Through the above structure, the moisture in the electrolyte can be removed to a certain extent to reduce the possibility of affecting the battery performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present utility model, the drawings required to be used in the embodiment will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 It is a top view of the support frame of the present utility model.

[0020] Icons: 1 - Electric telescopic rod, 2 - Support frame, 3 - Positioning block, 4 - Drying room, 5 - Stop piece, 6 - Conical bottle cap, 7 - Liquid preparation bottle, 8 - Lithium strip layer, 9 - Heater, 10 - Magnetic stirrer, 11 - Operating platform, 12 - Electric stirrer, 13 - Dehumidifier. Specific implementation mode

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0022] Please refer to Figure 1 - Figure 2 , a battery electrolyte preparation system provided by the present utility model includes a drying room 4, an operating platform 11 and a liquid preparation bottle 7 arranged in the drying room 4, and the liquid preparation bottle 7 is arranged on the operating platform 11; a heater 9 and a temperature sensor are covered on the outer surface of the liquid preparation bottle 7, the heater 9 is connected with a temperature controller, a magnetic stirrer 10 is arranged at the bottom inside the liquid preparation bottle 7, an electric stirrer 12 is arranged below the liquid preparation bottle 7, and the electric stirrer 12 is used for installing a magnet to drive the magnetic stirrer 10 to rotate; the drying room 4 is provided with a ventilation channel, and the ventilation channel is connected with a dehumidifier 13.

[0023] Adopting the structure provided by the present utility model, it mainly includes that a heater 9 and a temperature sensor are covered on the outer surface of the liquid preparation bottle 7, the heater 9 is connected with a temperature controller, a magnetic stirrer 10 is arranged at the bottom inside the liquid preparation bottle 7, an electric stirrer 12 is arranged below the liquid preparation bottle 7, and the electric stirrer 12 is used for installing a magnet to drive the magnetic stirrer 10 to rotate. When in use, turn on the electric stirrer 12, drive the magnetic stirrer 10 to rotate normally through the arranged magnet, set the temperature of the heater 9 through the temperature controller, under the constant temperature condition of the heater 9, and react with the moisture in the electrolyte through the lithium strip layer 8 to control the moisture value at a lower level. Through the above structure, the moisture in the electrolyte can be removed to a certain extent to reduce the possibility of affecting the battery performance.

[0024] To ensure the battery performance, the lithium / thionyl chloride electrolyte needs to be purified to control the impurity content. The anodic active reaction substance of the lithium / thionyl chloride battery is a lithium strip. If impurities that react with metallic lithium exist in the electrolyte, the battery performance will be severely affected after the electrolyte is poured into the battery. The raw material lithium tetrachloroaluminate contains aluminum trichloride and other impurities. During the preparation of the electrolyte, the electrolyte needs to be purified. When preparing the electrolyte, a certain amount of lithium strips with a thickness of 0.2 mm to 0.4 mm are added to make the lithium strips have a suitable reaction area. If the lithium strips are too thin, they are not easy to process and are prone to curling. If the lithium strips are too thick, the contact area with the solution is relatively small. By setting the temperature of the temperature controller, the electric heater 9 heats the electrolyte at a constant temperature, and the heating temperature should be controlled within a suitable range of 50 °C to 60 °C. If the temperature is too high, it will exceed the boiling point of thionyl chloride. If the temperature is too low, the reaction rate cannot be effectively accelerated. By increasing the reaction area of the lithium strips and heating at a constant temperature, the reaction rate is accelerated, enabling the impurities to fully react with the lithium strips to purify the electrolyte, thereby effectively reducing the impurities in the electrolyte and making the quality of the electrolyte meet the requirements of the technical conditions.

[0025] In an exemplary embodiment of the present invention, considering that the electrolyte may volatilize during heating, a humidity sensor disposed in the drying room 4 is further included, and an opening control device is provided at the mouth of the liquid dispensing bottle 7. The opening control device is used to control the opening size of the mouth.

[0026] At the beginning, the opening control device is opened to the maximum to allow moisture to volatilize from the electrolyte as much as possible during heating. When the humidity data collected by the humidity sensor has dropped to the normal humidity for electrolyte preparation, the opening degree of the opening control device can be reduced to reduce the volatilization of the electrolyte.

[0027] Specifically, the opening control device includes a pushing device and a conical bottle cap 6. The telescopic end of the pushing device is connected to the top of the conical bottle cap 6, and the pushing device is detachably connected to the top of the liquid dispensing bottle 7.

[0028] The pushing device includes an electric telescopic rod 1 and a support frame 2. The electric telescopic rod 1 is disposed on the top of the support frame 2, and the bottom of the support frame 2 is detachably connected to the top of the liquid dispensing bottle 7 through a connecting device.

[0029] By driving the up and down movement of the conical bottle cap 6 by the electric telescopic rod 1 without manual repeated adjustment, the adjustment accuracy is improved. The conical bottle cap 6 used in this embodiment has a shape that is larger at the top and smaller at the bottom.

[0030] In an exemplary embodiment of the present invention, the connecting device includes a connecting piece disposed at the bottom of the support frame 2 and a positioning block 3 disposed on the top of the liquid dispensing bottle 7. A first through hole for passing through the positioning block 3 is opened in the middle of the connecting piece, and a clamping device is disposed on one side of the positioning block 3 for fixing the connecting piece.

[0031] Specifically, the clamping device includes a second through hole opened on one side of the positioning block 3 and a blocking piece 5 that slides on the top of the liquid dispensing bottle 7, and the blocking piece 5 and the second through hole are on the same straight line.

[0032] During installation, the connecting plate is passed through the positioning block 3, and then the blocking piece 5 is slid into the second through hole of the positioning block 3 to complete the fixation. Similarly, for disassembly.

[0033] In order to further reduce manual operation, in an embodiment of the present invention, a processing unit is further included, and the processing unit is electrically connected to the humidity sensor and the electric telescopic rod 1.

[0034] By setting a humidity threshold, the elongation and shortening of the electric telescopic rod are controlled by the processing unit.

[0035] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A battery electrolyte configuration system, characterized in that, It includes a drying chamber (4), an operating platform (11) and a liquid dispensing bottle (7) arranged in the drying chamber (4), and the liquid dispensing bottle (7) is arranged on the operating platform (11); The outer surface of the liquid dispensing bottle (7) is covered with a heater (9) and a temperature sensor. The heater (9) is connected to a temperature controller. A magnetic stirrer (10) is arranged at the bottom inside the liquid dispensing bottle (7). An electric stirrer (12) is arranged below the liquid dispensing bottle (7), and the electric stirrer (12) is used to install a magnet to drive the magnetic stirrer (10) to rotate; The drying chamber (4) is provided with a ventilation passage, the ventilation passage is connected to a dehumidifier (13), and a lithium strip layer (8) is arranged in the middle of the liquid dispensing bottle (7).

2. The battery electrolyte configuration system according to claim 1, characterized in that, It also includes a humidity sensor arranged in the drying chamber (4). An opening control device is arranged at the mouth of the liquid dispensing bottle (7), and the opening control device is used to control the opening size of the bottle mouth.

3. The battery electrolyte configuration system according to claim 2, wherein, The opening control device includes a pushing device and a conical bottle cap (6). The telescopic end of the pushing device is connected to the top of the conical bottle cap (6), and the pushing device is detachably connected to the top of the liquid dispensing bottle (7).

4. A battery electrolyte configuration system according to claim 3, characterized in that, The pushing device includes an electric telescopic rod (1) and a support frame (2). The electric telescopic rod (1) is arranged at the top of the support frame (2), and the bottom of the support frame (2) is detachably connected to the top of the liquid dispensing bottle (7) through a connecting device.

5. A battery electrolyte configuration system according to claim 4, characterized in that, The connecting device includes a connecting piece arranged at the bottom of the support frame (2) and a positioning block (3) arranged at the top of the liquid dispensing bottle (7). A first through hole for passing through the positioning block (3) is opened in the middle of the connecting piece. A clamping device is arranged on one side of the positioning block (3), and the clamping device is used to fix the connecting piece.

6. The battery electrolyte configuration system according to claim 5, wherein, The clamping device includes a second through hole opened on one side of the positioning block (3) and a blocking piece (5) sliding on the top of the liquid dispensing bottle (7). The blocking piece (5) is on the same straight line as the second through hole.

7. A battery electrolyte configuration system according to claim 4, characterized in that, It also includes a processing unit, and the processing unit is electrically connected to the humidity sensor and the electric telescopic rod (1).

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