Device and method for explosive synthesis of nano positive electrode material

Abstract

The invention discloses a device and a method for explosive synthesis of a nano positive electrode material. The device comprises an explosion tank, a first operation room and a second operation room, emulsion explosives are stored in the first operation room, and the first operation room is provided with a first operation door communicated with the interior of the explosion tank; a slide way is arranged at the bottom of the explosion tank and is used for transferring the emulsion explosive in the first operation room into the explosion tank; a lifting rope is arranged on the inner top wall of the explosion tank and is used for suspending the emulsion explosive on the slide way at a detonating position in the center of the explosion tank; two sides of the explosion tank are respectively communicated with the first operating room and the second operating room through a first emptying valve and a second emptying valve; the explosion tank is provided with a first vacuumizing valve used for vacuumizing the interior of the explosion tank. The second operation room is provided with a material collecting bin, and a second vacuumizing valve is arranged at the outer side end of the material collecting bin and used for vacuumizing the interior of the second operation room. The second operation room is provided with a third operation door communicated with the interior of the explosion tank.

Description

Technical Field

[0001] This invention relates to the field of explosive synthesis technology, specifically to an apparatus and method for explosive synthesis of nano-positive electrode materials. Background Technology

[0002] With the rapid development of the global new energy industry, the demand for power batteries, as a core component, continues to grow. Cathode materials are one of the key factors determining battery performance. Among them, lithium iron phosphate (LiFePO4), lithium iron manganese oxide, and lithium manganese oxide have become the mainstream choice for power batteries due to their advantages such as high safety, low cost, and long cycle life. However, traditional preparation methods have significant limitations: high energy consumption, long production cycles, uneven product particle size distribution, short battery shelf life, and insufficient safety, making it difficult to meet the higher requirements of power batteries for material performance and production efficiency. Specifically, the particle size of cathode materials synthesized by traditional methods is usually in the micrometer range, resulting in poor battery rate performance, low cycle stability, and increased costs and environmental pollution due to the high-temperature process.

[0003] Explosive synthesis, as an emerging method, leverages its instantaneous high temperature and pressure to achieve rapid synthesis and nanoscale modification of materials. This technology effectively shortens production cycles, reduces energy consumption and production costs, and produces high-purity, nanoscale cathode materials, thereby improving the electrochemical and safety performance of batteries. Based on this technology, this invention designs a dedicated device and method to address the shortcomings of traditional methods and promote the industrial application of nanoscale cathode materials. Summary of the Invention

[0004] In view of the deficiencies in the existing technology, the purpose of this invention is to provide an apparatus and method for explosive synthesis of nano-cathode materials. This invention not only provides a more advanced method for synthesizing nanomaterials, but also achieves efficient, low-consumption, and safe industrial production through apparatus optimization, thus providing technical support for the upgrading of the power battery industry.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: an apparatus for explosive synthesis of nano-positive electrode materials, comprising an explosive container, with a first operating room and a second operating room respectively arranged on both sides of the explosive container; the first operating room stores emulsion explosives and is provided with a first operating door communicating with the interior of the explosive container; a slide is provided at the bottom of the explosive container, and one end of the slide extends from the first operating door into the first operating room for transferring the emulsion explosives in the first operating room to the explosive container; a suspension rope is provided on the inner top wall of the explosive container for suspending the emulsion explosives on the slide at the detonation position in the center of the explosive container; the two sides of the explosive container are respectively connected to the first operating room and the second operating room through a first vent valve and a second vent valve; the explosive container is provided with a first vacuum valve for evacuating the interior of the explosive container; the second operating room is provided with a collection bin, and a second vacuum valve is provided at the outer end of the collection bin for evacuating the interior of the second operating room; the second operating room is provided with a third operating door communicating with the interior of the explosive container.

[0006] Based on the above technical solution, the first operating room is provided with a second operating door for personnel to enter and exit, and the second operating room is provided with a fourth operating door for personnel to enter and exit.

[0007] Based on the above technical solution, the first operating room is equipped with a third vent valve that communicates with the outside, and the second operating room is equipped with a fourth vent valve that communicates with the outside.

[0008] Based on the above technical solution, a filter screen is installed inside the collection bin.

[0009] Based on the above technical solution, the explosive container is equipped with an inspection door.

[0010] Based on the above technical solution, the explosive container is equipped with a first vacuum gauge, the first operating room is equipped with a second vacuum gauge, and the second operating room is equipped with a third vacuum gauge.

[0011] Based on the above technical solution, the explosion container is equipped with a temperature gauge.

[0012] Based on the above technical solution, the volume of the explosive container is 20-5000m³.

[0013] The present invention also provides a method for explosive synthesis of nano-positive electrode materials based on the above-mentioned device, comprising the following steps: Step S1. Transfer the required emulsion explosive from the first operating room along the slide to the explosion container, and use a rope to suspend the emulsion explosive on the slide at the central detonation position of the explosion container. Step S2. Close the first vent valve and the second vent valve, close the first operating door, the third operating door and the maintenance door, open the first vacuum valve and start vacuuming; Step S3. Observe the first vacuum gauge. When the vacuum inside the explosion container reaches the requirement of -0.10MPa, close the first vacuum valve, stop vacuuming, and detonate the emulsion explosive. Step S4. Close the fourth operating door of the second operating room, close the fourth vent valve, open the second vent valve, open the third operating door, open the second vacuum valve, and perform vacuum filtration while the filter is still hot. Step S5. Observe the third vacuum gauge. When the vacuum reaches the requirement of -0.10MPa, close the second vacuum valve, open the first vacuum valve, and continue vacuuming. At the same time, close the second vent valve, close the third operating door, open the fourth vent valve, open the fourth operating door, and personnel enter the second operating room to start collecting the filter material from the collection bin.

[0014] Step S6. Post-process the filtered material to obtain the nanoscale cathode material required for the battery.

[0015] Based on the above technical solution, while personnel enter the second operating room to carry out cleaning operations, the second operating door of the first operating room is closed, the third vent valve is closed, the first vent valve is opened, and the first operating door is opened. The required emulsion explosive is transferred from the first operating room to the explosive container along the slide. The emulsion explosive on the slide is suspended by a rope at the central detonation position of the explosive container. Then, the first vent valve is closed, the first operating door is closed, the third vent valve is opened, and the second operating door is opened. The next required emulsion explosive is then installed.

[0016] The beneficial effects of this invention are as follows: 1. This invention achieves rapid transfer and detonation of emulsion explosives through a coordinated design between the explosive container and the operating system. The vacuum system can reach the required vacuum level in a short time, and the entire synthesis process is completed within minutes, far faster than traditional high-temperature reactions that take several hours. The device has a compact structure, and the slide and suspension rope simplify the positioning of the explosives, reducing operational complexity.

[0017] 2. The high temperature and high pressure environment during the explosive synthesis of this invention ensures the nanoscale particle size and high purity of the material, thereby improving the electrochemical performance of the cathode material.

[0018] 3. This invention adopts an isolation design, controlling the gas through an exhaust valve and a vacuum system, thus avoiding the risk of explosion and leakage pollution. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the device used for explosive synthesis of nano-cathode materials in an embodiment of the present invention.

[0020] Figure label: 1-Emulsion explosive; 2-Explosion container; 21-Lifting rope; 22-Slide rail; 23-First vent valve; 24-Second vent valve; 25-First vacuum valve; 26-First vacuum gauge; 27-Thermometer; 28-Inspection door; 3-First operating room; 31-First operating door; 32-Second operating door; 33-Third vent valve; 34-Second vacuum gauge; 4-Second operating room; 41-Third operating door; 42-Fourth operating door; 43-Fourth vent valve; 44-Third vacuum gauge; 45-Collection bin; 46-Filter screen; 47-Second vacuum valve. Detailed Implementation

[0021] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0022] In the description of this invention, it should be noted that the directional terms such as "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature. In the description of this invention, "several" or "a number" means two or more, unless otherwise explicitly specified.

[0024] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0025] In this invention, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "below" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and its beneficial effects clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the invention.

[0027] See Figure 1 As shown, the present invention provides an apparatus for explosive synthesis of nano-positive electrode materials, including an explosive container 2, with a first operating chamber 3 and a second operating chamber 4 respectively arranged on both sides of the explosive container 2.

[0028] The first operating room 3 contains emulsion explosive 1 and is equipped with a first operating door 31 that communicates with the interior of the explosive container 2.

[0029] The bottom of the explosive container 2 is equipped with a slide 22, one end of which extends from the first operating door 31 into the first operating room 3, for transferring the emulsion explosive 1 in the first operating room 3 to the explosive container 2. A suspension rope 21 is installed on the inner top wall of the explosive container 2 to suspend the emulsion explosive 1 on the slide 22 at the detonation position in the center of the explosive container 2. The two sides of the explosive container 2 are connected to the first operating room 3 and the second operating room 4 respectively through a first vent valve 23 and a second vent valve 24. The explosive container 2 is equipped with a first vacuum valve 25 for evacuating the interior of the explosive container 2. Specifically, the explosive container 2 is equipped with an inspection door 28. The explosive container 2 is equipped with a temperature gauge 27. The volume of the explosive container 2 is 20-5000 m³.

[0030] The second operating room 4 is equipped with a collection bin 45, and a second vacuum valve 47 is installed at the outer end of the collection bin 45 for evacuating the interior of the second operating room 4; the second operating room 4 is equipped with a third operating door 41 that communicates with the interior of the explosive container 2. Specifically, a filter screen 46 is installed inside the collection bin 45.

[0031] Specifically, the first operating room 3 is equipped with a second operating door 32 for personnel access, and the second operating room 4 is equipped with a fourth operating door 42 for personnel access. The first operating room 3 is equipped with a third vent valve 33 connecting to the outside, and the second operating room 4 is equipped with a fourth vent valve 43 connecting to the outside. The explosive container 2 is equipped with a first vacuum gauge 26, the first operating room 3 is equipped with a second vacuum gauge 34, and the second operating room 4 is equipped with a third vacuum gauge 44.

[0032] The present invention also provides a method for explosive synthesis of nano-positive electrode materials based on the above-mentioned device, comprising the following steps: Step S1. Transfer the required emulsion explosive 1 from the first operating room 3 along the slide 22 to the explosion container 2, and use the hoisting rope 21 to suspend the emulsion explosive 1 on the slide 22 at the central detonation position of the explosion container 2. Step S2. Close the first vent valve 23 and the second vent valve 24, close the first operating door 31, the third operating door 41 and the maintenance door, open the first vacuum valve 25 and start vacuuming; Step S3. Observe the first vacuum gauge 26. When the vacuum inside the explosion container 2 reaches the requirement of -0.10MPa, close the first vacuum valve 25, stop vacuuming, and detonate the emulsion explosive 1. Step S4. Close the fourth operating door 42 of the second operating room 4, close the fourth vent valve 43, open the second vent valve 24, open the third operating door 41, open the second vacuum valve 47, and perform vacuum filtration while the air is still hot. Step S5. Observe the third vacuum gauge 44. When the vacuum reaches the requirement of -0.10MPa, close the second vacuum valve 47, open the first vacuum valve 25, and continue to evacuate the vacuum. At the same time, close the second vent valve 24, close the third operating door 41, open the fourth vent valve 43, open the fourth operating door 42, and personnel enter the second operating room 4 to start collecting the filtered material from the collection bin 45.

[0033] Step S6. Post-process the filtered material to obtain the nanoscale cathode material required for the battery.

[0034] Specifically, while personnel enter the second operating room 4 to carry out cleaning operations, the second operating door 32 of the first operating room 3 is closed, the third vent valve 33 is closed, the first vent valve 23 is opened, and the first operating door 31 is opened. The required emulsion explosive 1 is transferred from the first operating room 3 along the slide 22 to the explosive container 2. The emulsion explosive 1 on the slide 22 is suspended in the air at the central detonation position of the explosive container 2 using the hoisting rope 21. Then, the first vent valve 23 is closed, the first operating door 31 is closed, the third vent valve 33 is opened, and the second operating door 32 is opened. The next installation of the required emulsion explosive 1 is then carried out.

[0035] The present invention will be further illustrated by several embodiments below. Example

[0036] Synthetic lithium iron phosphate Aqueous phase preparation: Lithium nitrate + Ferric nitrate + Ammonium phosphate: 30.0%; (The elements lithium, iron, phosphorus, etc. are in a molar ratio of 1:1:1) Ammonium nitrate: 55.0% Sodium dodecyl sulfate: 0.010% Deionized water: Balance.

[0037] After measuring the above materials separately, add them to the aqueous phase tank in the following order: deionized water, water-soluble surfactant, ammonium nitrate, lithium nitrate, ferric nitrate, and ammonium phosphate. Heat the tank to 90-95°C, keep it warm, and set aside for later use.

[0038] Oil phase preparation: Mixture ratio: White oil: 60.0%; Polyisobutylene succinimide; 40.0%; After measuring the above materials separately, add them to the oil phase tank in the order of white oil and polyisobutylene succinimide, heat to 80-90℃, keep warm, and set aside for later use.

[0039] Preparation of emulsion explosives: The above aqueous and oil phases were prepared according to the following ratio: aqueous phase: 93.5%; oil phase: 6.5%. After the aqueous and oil phases are measured separately, they are simultaneously fed into an emulsion mixer. After emulsification, sensitizers (accelerators and foaming agents) are added for sensitization and foaming, loading, cooling, and packaging, which yields the emulsion explosive for explosive synthesis of nano-positive electrode materials.

[0040] Step S1. Transfer the required emulsion explosive 1 from the first operating room 3 along the slide 22 to the explosion container 2, and use the hoisting rope 21 to suspend the emulsion explosive 1 on the slide 22 at the central detonation position of the explosion container 2. Step S2. Close the first vent valve 23 and the second vent valve 24, close the first operating door 31, the third operating door 41 and the maintenance door, open the first vacuum valve 25 and start vacuuming; Step S3. Observe the first vacuum gauge 26. When the vacuum inside the explosion container 2 reaches the requirement of -0.10MPa, close the first vacuum valve 25, stop vacuuming, and detonate the emulsion explosive 1. Step S4. Close the fourth operating door 42 of the second operating room 4, close the fourth vent valve 43, open the second vent valve 24, open the third operating door 41, open the second vacuum valve 47, and perform vacuum filtration while the air is still hot. Step S5. Observe the third vacuum gauge 44. When the vacuum reaches the requirement of -0.10MPa, close the second vacuum valve 47, open the first vacuum valve 25, and continue to evacuate the vacuum. At the same time, close the second vent valve 24, close the third operating door 41, open the fourth vent valve 43, open the fourth operating door 42, and personnel enter the second operating room 4 to start collecting the filtered material from the collection bin 45.

[0041] Step S6. Post-process the filtered material to obtain the nanoscale cathode material required for the battery.

[0042] Table 1. Performance of the lithium iron phosphate nano-cathode material prepared in Example 1 of this invention: 0.1C discharge specific capacity ≥ 220 mAh / g; 1C cycle 1000 cycles capacity retention ≥ 95%； Cycle life (1C / 1C) ≥3000 times, Tap density ≥ 1.3 g / cm³; Particle size distribution: ≤50nm; Example 2 Synthetic lithium iron manganese oxide Aqueous phase preparation: Lithium nitrate + Ferric nitrate + Manganese nitrate: 35.0%; (The elements lithium, iron, manganese, etc. are in a molar ratio of 1:1:1) Ammonium nitrate: 50.0% Sodium dodecyl sulfate: 0.005% Deionized water: Balance.

[0043] After measuring the above materials separately, add them to the aqueous phase tank in the following order: deionized water, water-soluble surfactant, ammonium nitrate, lithium nitrate, ferric nitrate, and manganese nitrate. Heat the tank to 90-95°C, keep it warm, and set aside for later use.

[0044] Oil phase preparation: Formula: White oil: 64.0%; Polyisobutylene succinimide; 36.0%; After measuring the above materials separately, add them to the oil phase tank in the order of white oil and polyisobutylene succinimide, heat to 80-90℃, keep warm, and set aside for later use.

[0045] Preparation of emulsion explosives: The above aqueous and oil phases were prepared according to the following ratio: aqueous phase: 94.5%; oil phase: 5.5%. After the aqueous and oil phases are measured separately, they are simultaneously fed into an emulsion mixer. After emulsification, sensitizers (accelerators and foaming agents) are added for sensitization and foaming, loading, cooling, and packaging, which yields the emulsion explosive for explosive synthesis of nano-positive electrode materials.

[0046] Step S1. Transfer the required emulsion explosive 1 from the first operating room 3 along the slide 22 to the explosion container 2, and use the hoisting rope 21 to suspend the emulsion explosive 1 on the slide 22 at the central detonation position of the explosion container 2. Step S2. Close the first vent valve 23 and the second vent valve 24, close the first operating door 31, the third operating door 41 and the maintenance door, open the first vacuum valve 25 and start vacuuming; Step S3. Observe the first vacuum gauge 26. When the vacuum inside the explosion container 2 reaches the requirement of -0.10MPa, close the first vacuum valve 25, stop vacuuming, and detonate the emulsion explosive 1. Step S4. Close the fourth operating door 42 of the second operating room 4, close the fourth vent valve 43, open the second vent valve 24, open the third operating door 41, open the second vacuum valve 47, and perform vacuum filtration while the air is still hot. Step S5. Observe the third vacuum gauge 44. When the vacuum reaches the requirement of -0.10MPa, close the second vacuum valve 47, open the first vacuum valve 25, and continue to evacuate the vacuum. At the same time, close the second vent valve 24, close the third operating door 41, open the fourth vent valve 43, open the fourth operating door 42, and personnel enter the second operating room 4 to start collecting the filtered material from the collection bin 45.

[0047] Step S6. Post-process the filtered material to obtain the nanoscale cathode material required for the battery.

[0048] Table 2. Performance of the lithium iron manganese oxide nano-cathode material prepared in Example 2 of the present invention: 0.1C discharge specific capacity ≥ 250 mAh / g; 1C cycle 1000 cycles capacity retention ≥ 96%； Cycle life (1C / 1C) ≥3400 times, Tap density ≥ 1.4 g / cm³; Particle size distribution: ≤50nm; In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] This invention is not limited to the embodiments described above. Those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention. Contents not described in detail in this specification are prior art known to those skilled in the art.

Claims

1. An apparatus for explosive synthesis of nano-positive electrode materials, comprising an explosive container (2), characterized in that: The first operating room (3) and the second operating room (4) are respectively provided on both sides of the explosive container (2); The first operating room (3) stores emulsion explosives (1) and is equipped with a first operating door (31) that communicates with the interior of the explosive container (2). The bottom of the explosive container (2) is provided with a slide (22), and one end of the slide (22) extends from the first operating door (31) into the first operating room (3) for transferring the emulsion explosive (1) in the first operating room (3) to the explosive container (2); the inner top wall of the explosive container (2) is provided with a suspension rope (21) for suspending the emulsion explosive (1) on the slide (22) at the detonation position in the center of the explosive container (2); the two sides of the explosive container (2) are respectively connected to the first operating room (3) and the second operating room (4) through the first vent valve (23) and the second vent valve (24); the explosive container (2) is provided with a first vacuum valve (25) for evacuating the inside of the explosive container (2); The second operating room (4) is equipped with a material collection bin (45), and a second vacuum valve (47) is provided at the outer end of the material collection bin (45) for vacuuming the interior of the second operating room (4); the second operating room (4) is equipped with a third operating door (41) that communicates with the interior of the explosion tank (2).

2. The apparatus for explosive synthesis of nano-cathode materials as described in claim 1, characterized in that: The first operating room (3) is provided with a second operating door (32) for personnel to enter and exit, and the second operating room (4) is provided with a fourth operating door (42) for personnel to enter and exit.

3. The apparatus for explosive synthesis of nano-cathode materials as described in claim 1, characterized in that: The first operating room (3) is equipped with a third vent valve (33) that communicates with the outside, and the second operating room (4) is equipped with a fourth vent valve (43) that communicates with the outside.

4. The apparatus for explosive synthesis of nano-cathode materials as described in claim 1, characterized in that: The collection bin (45) is equipped with a filter screen (46).

5. The apparatus for explosive synthesis of nano-cathode materials as described in claim 1, characterized in that: The explosive container (2) is equipped with an inspection door (28).

6. The apparatus for explosive synthesis of nano-cathode materials as described in claim 1, characterized in that: The explosion container (2) is equipped with a first vacuum gauge (26), the first operating room (3) is equipped with a second vacuum gauge (34), and the second operating room (4) is equipped with a third vacuum gauge (44).

7. The apparatus for explosive synthesis of nano-cathode materials as described in claim 1, characterized in that: The explosive container (2) is equipped with a temperature gauge (27).

8. The apparatus for explosive synthesis of nano-cathode materials as described in claim 1, characterized in that: The volume of the explosive container (2) is 20-5000 m³.

9. A method for explosively synthesizing nano-cathode materials based on the apparatus described in any one of claims 1 to 8, characterized in that, Includes the following steps: Step S1. Transfer the required emulsion explosive (1) from the first operating room (3) along the slide (22) to the explosion container (2), and use the hoisting rope (21) to suspend the emulsion explosive (1) on the slide (22) at the central detonation position of the explosion container (2); Step S2. Close the first vent valve (23) and the second vent valve (24), close the first operating door (31), the third operating door (41) and the maintenance door, open the first vacuum valve (25) and start vacuuming; Step S3. Observe the first vacuum gauge (26). When the vacuum in the explosion container (2) reaches the requirement of -0.10MPa, close the first vacuum valve (25), stop vacuuming, and detonate the emulsion explosive (1). Step S4. Close the fourth operating door (42) of the second operating room (4), close the fourth vent valve (43), open the second vent valve (24), open the third operating door (41), open the second vacuum valve (47), and perform vacuum filtration while the air is still hot. Step S5. Observe the third vacuum gauge (44). When the vacuum reaches the requirement of -0.10MPa, close the second vacuum valve (47), open the first vacuum valve (25), and continue vacuuming. At the same time, close the second vent valve (24), close the third operating door (41), open the fourth vent valve (43), open the fourth operating door (42), and personnel enter the second operating room (4) to start collecting the filter material from the collection bin (45). Step S6. Post-process the filtered material to obtain the nanoscale cathode material required for the battery.

10. The method as described in claim 9, characterized in that: While personnel enter the second operating room (4) to carry out cleaning operations, the second operating door (32) of the first operating room (3) is closed, the third vent valve (33) is closed, the first vent valve (23) is opened, the first operating door (31) is opened, and the required emulsion explosive (1) is transferred from the first operating room (3) along the slide (22) to the explosive container (2). The emulsion explosive (1) on the slide (22) is suspended in the air at the central detonation position of the explosive container (2) by the hoisting rope (21). Then the first vent valve (23) is closed, the first operating door (31) is closed, the third vent valve (33) is opened, and the second operating door (32) is opened. The next installation of the required emulsion explosive (1) is carried out.

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