Packaging box of lithium battery
By using a cardboard folding inner lining structure, combined with buffer gaps and buffer cavities, the problem of poor cushioning effect in lithium battery packaging structures is solved, achieving effective protection and environmental improvement.
Patent Information
- Application Number
- CN202520776636.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-04-23
AI Technical Summary
Existing lithium battery packaging structures have poor cushioning during transportation, which can easily lead to damage from impacts, or even cause fires or explosions.
The inner lining structure is formed by folding cardboard in one piece, including side panels, upper buffer section and lower buffer section, forming buffer gap and buffer cavity. Combined with the lower buffer section with multiple layers of ring plates, it enhances the limiting and support effect, and provides protection by utilizing the deformability of cardboard.
It effectively prevents lithium batteries from being damaged by vibration or impact during transportation, reduces production and processing difficulties, is environmentally friendly, and improves the buffering effect, avoiding the risk of fire or explosion.
Smart Images
Figure CN223962425U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of packaging, specifically relating to a packaging box for lithium batteries. Background Technology
[0002] With the continuous development of technology, people are encountering more and more smart terminals in their work and daily lives. Because existing smart terminals generally suffer from high power consumption and slow recharging, portable lithium batteries are increasingly being used as mobile power supply devices. Before leaving the factory, lithium batteries need to be packaged for easy transportation.
[0003] Currently, existing lithium battery packaging boxes are typically simple cardboard boxes. During long-distance transportation, the boxes are subject to vibrations from external forces, making the lithium batteries inside extremely vulnerable to impact damage, potentially even causing fires or explosions and resulting in economic losses. Even when foam packaging is used as an inner lining, its brittleness makes it prone to breakage upon impact, failing to provide effective cushioning and protection for the lithium batteries when the cardboard box is subjected to shocks. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a packaging box for lithium batteries to solve the problem of poor cushioning effect of lithium battery packaging structure.
[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a lithium battery packaging box, including a box body, a first inner liner sleeved on the outer periphery of the lithium battery and a second inner liner with a buffer cavity inside the box body, the second inner liner abutting the bottom of the lithium battery, the first inner liner being integrally folded from cardboard to form a side plate surrounding the lithium battery, an upper buffer portion at the top of the side plate and a lower buffer portion at the bottom of the side plate, the upper buffer portion and the lower buffer portion respectively abutting the outer side wall of the lithium battery to form a first buffer gap between the lithium battery and the side plate. This technical solution has the following technical effects:
[0006] This invention features a first inner liner formed by integrally folding cardboard. This folding creates a side panel, an upper buffer section, and a lower buffer section. The upper and lower buffer sections abut against the upper and lower ends of the outer wall of the lithium battery, respectively, forming a first buffer gap between the outer periphery of the lithium battery and the side panel. This first buffer gap provides space for the deformation of the box side and the side panel. When the lithium battery is placed inside the packaging box, if the side of the packaging box is impacted and squeezed, the side panel of the first inner liner deforms towards the first buffer gap without colliding with the lithium battery, thus preventing the impact from being transmitted to the lithium battery and effectively protecting it. If the packaging box vibrates, the upper and lower buffer sections can limit the lithium battery, preventing it from shaking and colliding with external objects. Furthermore, the first inner liner is formed by folding cardboard, reducing the manufacturing difficulty and making it more environmentally friendly than foam packaging. Meanwhile, because the second liner with a buffer cavity is in contact with the bottom of the lithium battery, when the bottom of the lithium battery packaging box is impacted, the bottom of the packaging box and the second liner will deform into the buffer cavity, and the impact will not be transmitted to the lithium battery. Through the combination of the first liner and the second liner, the lithium battery is prevented from being damaged by impact and causing fire or explosion, with good buffering effect.
[0007] In the aforementioned lithium battery packaging box, the lower buffer section includes multiple hollow annular plates. These annular plates are stacked to form a lower buffer section surrounding the lithium battery. The annular plates abut against the outer periphery of the lower part of the lithium battery to provide support for the lower part of the lithium battery. By setting the lower buffer section to be formed by stacking multiple annular plates, the strength of the lower buffer section is greatly enhanced, meaning that the lower buffer section is not easily deformed. This makes the lower buffer section's horizontal positioning of the lithium battery more stable and reliable, ensuring that a first buffer gap is always maintained between the outer periphery of the lithium battery and the side plate of the first inner liner. This provides deformation space for the box body and side plate under impact, improving the impact resistance of the packaging box side.
[0008] In the aforementioned lithium battery packaging box, the side panel includes multiple support walls with annular plates at the bottom. These support walls form a mounting cavity for accommodating the lithium battery. The annular plates are folded into the mounting cavity to form a lower buffer section. By arranging the annular plates and support walls in a one-to-one correspondence, when folding the first inner liner, it is only necessary to fold each annular plate sequentially into the mounting cavity to complete the folding of the lower buffer section. This operation is convenient and simple, reducing the difficulty of folding.
[0009] In the aforementioned lithium battery packaging box, multiple support walls are spliced together to form a side plate surrounding the lithium battery, and adjacent support walls are fixed together by connectors. The annular plates at the bottom of two opposing support walls are stacked and fixed together by insert plates and holes to limit their position, keep them in a stacked state, prevent them from separating freely, and reduce the difficulty of folding the lower buffer section.
[0010] In the aforementioned lithium battery packaging box, when the annular plates are stacked to form the lower buffer section, the annular plates at the bottom of the two supporting walls are fixed by insert plates and insertion holes respectively provided on them. The insertion of the inserts and insertion slots fixes the two adjacent supporting walls to maintain the spliced state, which can reduce the difficulty of folding the first inner liner.
[0011] In the aforementioned lithium battery packaging box, the side panel includes multiple support walls that form a mounting cavity for accommodating the lithium battery. The upper buffer section includes multiple support plates located on top of the support walls. These support plates fold into the mounting cavity and abut against the outer side wall of the upper part of the lithium battery, thus providing support for the upper part of the lithium battery. By configuring the upper buffer section as folded support plates, the folded support plates can abut against the outer side wall of the lithium battery, providing horizontal support for the upper part of the lithium battery. The cooperation of multiple support plates ensures support and restraint on all sides of the lithium battery, resulting in a simple structure and good restraint effect for the lithium battery.
[0012] In the aforementioned lithium battery packaging box, a support plate is folded to form a laterally extending limiting part and a longitudinally extending support part. The lower end of the support part abuts against the outer wall of the lithium battery. The limiting part can horizontally limit the upper part of the lithium battery to cooperate with the lower buffer part for limiting, ensuring that a first buffer gap is always maintained between the outer periphery of the lithium battery and the side plate of the first inner liner. The support part extends downward and abuts against the outer wall of the lithium battery, enhancing the support effect of the upper buffer part on the lithium battery, making the support of the upper buffer part for the lithium battery more stable and reliable.
[0013] In the aforementioned lithium battery packaging box, the second inner liner is an accessory box formed by folding cardboard, and the lithium battery accessories are placed in the buffer cavity of the accessory box. The buffer cavity not only provides space for deformation of the packaging box and accessory box when the bottom of the packaging box is subjected to external impact, but also accommodates the lithium battery accessories. This fully utilizes the buffer cavity of the second inner liner, saving internal space and improving its utilization rate. Using a cardboard-structured accessory box as the second inner liner facilitates production and processing, while also allowing for greater deformation and better cushioning of the lithium battery.
[0014] In the aforementioned lithium battery packaging box, the lithium battery includes a body containing battery cells and a handle located on the top of the body. A first inner liner wraps around the outer periphery of the body, a second inner liner abuts against the bottom of the body, and a third inner liner is also provided inside the box, abutting against the top of the handle to form a second buffer gap between the handle and the top of the box. The third inner liner can vertically limit the handle to prevent it from directly contacting the top of the box. When the top of the box is impacted, the second buffer gap provides space for deformation of the top of the box, allowing it to deform towards the second buffer gap without impacting the handle, thus protecting the handle.
[0015] In the aforementioned lithium battery packaging box, a third inner liner is provided with a limiting groove, and the handle is embedded in the limiting groove. The third inner liner not only cushions and protects the handle but also limits its position, thereby making the lithium battery more stable inside the packaging box. It also prevents the lithium battery from rotating or shaking inside the box during transportation, making the lithium battery packaging more secure and transportation more stable.
[0016] The features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0018] Figure 1 This is a cross-sectional view of the packaging box;
[0019] Figure 2 A cross-sectional view of the lithium battery inside the packaging box;
[0020] Figure 3 A three-dimensional view of the first inner lining;
[0021] Figure 4 This is a schematic diagram of the unfolded first lining;
[0022] Figure 5 This is a cross-sectional view of the first inner lining;
[0023] Figure 6 for Figure 5 Enlarged view of part A;
[0024] Figure 7 This is a cross-sectional diagram of the third inner lining.
[0025] Figure label:
[0026] 100. Box body;
[0027] 200. Lithium battery; 210. Body; 220. Handle;
[0028] 300, First inner liner; 310, Side plate; 311, Support wall; 3111, Connector; 3112, Connecting hole; 312, Mounting cavity; 320, Upper buffer section; 321, Support plate; 3211, Limiting section; 3212, Support section; 330, Lower buffer section; 331, Annular plate; 3311, Insert plate; 3312, Inserting hole; 340, First buffer gap;
[0029] 400. Second inner lining; 410. Buffer cavity;
[0030] 500, Third inner lining; 510, Second buffer gap; 520, Limiting groove. Detailed Implementation
[0031] The present invention discloses a lithium battery packaging box, including a box body, a first inner liner sleeved on the outer periphery of the lithium battery and a second inner liner with a buffer cavity inside the box body, the second inner liner abutting the bottom of the lithium battery, the first inner liner being integrally folded from cardboard to form a side plate surrounding the lithium battery, an upper buffer portion at the top of the side plate and a lower buffer portion at the bottom of the side plate, the upper buffer portion and the lower buffer portion abutting the outer side wall of the lithium battery respectively to form a first buffer gap between the lithium battery and the side plate. This invention features a first inner liner formed by integrally folding cardboard. This folding creates a side panel, an upper buffer section, and a lower buffer section. The upper and lower buffer sections abut against the upper and lower ends of the outer wall of the lithium battery, respectively, forming a first buffer gap between the outer periphery of the lithium battery and the side panel. This first buffer gap provides space for the deformation of the box side and the side panel. When the lithium battery is placed inside the packaging box, if the side of the packaging box is impacted and squeezed, the side panel of the first inner liner deforms towards the first buffer gap without colliding with the lithium battery, thus preventing the impact from being transmitted to the lithium battery and effectively protecting it. If the packaging box vibrates, the upper and lower buffer sections can limit the lithium battery, preventing it from shaking and colliding with external objects. Furthermore, the first inner liner is formed by folding cardboard, reducing the manufacturing difficulty and making it more environmentally friendly than foam packaging. Meanwhile, because the second liner with a buffer cavity is in contact with the bottom of the lithium battery, when the bottom of the lithium battery packaging box is impacted, the bottom of the packaging box and the second liner will deform into the buffer cavity, and the impact will not be transmitted to the lithium battery. Through the combination of the first liner and the second liner, the lithium battery is prevented from being damaged by impact and causing fire or explosion, with good buffering effect.
[0032] The technical solutions of the present utility model will be explained and described below with reference to the accompanying drawings. However, the following embodiments are only preferred embodiments of the present utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments in the implementation methods without creative effort are all within the protection scope of the present utility model.
[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.
[0034] 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 indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.
[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and 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 utility model according to the specific circumstances.
[0036] In this invention, unless otherwise explicitly 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," "over," and "on top" of the second feature includes the first feature 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. "Below," "below," and "under" the second feature includes the first feature 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.
[0037] Example 1:
[0038] A type of lithium battery packaging box, such as Figures 1 to 7As shown, the device includes a box body 100, inside which are provided a first inner liner 300 and a second inner liner 400. The first inner liner 300 and the second inner liner 400 are separately arranged. The first inner liner 300 is fitted onto the outer periphery of the lithium battery 200. The first inner liner 300 is integrally folded from cardboard to form a side plate 310, an upper buffer portion 320, and a lower buffer portion 330. The side plate 310 is arranged around the lithium battery 200. The upper buffer portion 320 is located at the top of the side plate 310 to abut against the outer wall of the upper part of the lithium battery 200. The lower buffer portion 330 is located at the bottom of the side plate 310 to abut against the outer wall of the lower part of the lithium battery 200. By abutting the upper buffer portion 320 and the lower buffer portion 330 against the outer wall of the lithium battery 200, a first buffer gap 340 is formed between the lithium battery 200 and the side plate 310. The first buffer gap 340 is located between the upper buffer portion 320 and the lower buffer portion 330. The second inner liner 400 abuts against the bottom of the lithium battery 200, and the interior of the second inner liner 400 is provided with a buffer cavity 410.
[0039] This utility model sets the first inner liner 300 to be integrally folded from cardboard, so that the first inner liner 300 forms a side plate 310, an upper buffer part 320 and a lower buffer part 330 through folding. The upper buffer part 320 and the lower buffer part 330 respectively abut against the upper and lower ends of the outer side wall of the lithium battery 200, so that a first buffer gap 340 is formed between the outer periphery of the lithium battery 200 and the side plate 310. The first buffer gap 340 can provide space for the deformation of the side of the box body 100 and the side plate 310. When the lithium battery 200 is placed inside the packaging box, if the side of the packaging box is impacted and squeezed by the side plate 310 of the first inner liner 300, the side plate 310 of the first inner liner 300 will deform towards the first buffer gap 340 without colliding with the lithium battery 200, thus preventing the impact from being transmitted to the lithium battery 200 and effectively protecting the lithium battery 200. If the packaging box vibrates, the upper buffer part 320 and the lower buffer part 330 can limit the lithium battery 200 to prevent the lithium battery 200 from shaking and colliding with the side plate 310 or the packaging box, thereby preventing the lithium battery 200 from colliding with external objects. In addition, the first inner liner 300 is formed by folding cardboard, which reduces the manufacturing difficulty of the first inner liner 300 and is more environmentally friendly than foam packaging. Meanwhile, because the second inner liner 400 with the buffer cavity 410 abuts against the bottom of the lithium battery 200, when the bottom of the packaging box of the lithium battery 200 is impacted, the bottom of the packaging box and the second inner liner 400 will deform into the buffer cavity 410, and the impact will not be transmitted to the lithium battery 200. Through the combination of the first inner liner 300 and the second inner liner 400, the lithium battery 200 is prevented from being damaged by impact and causing a fire or explosion, with a good buffering effect.
[0040] like Figure 3 and Figure 4As shown, the lower buffer portion 330 includes a plurality of hollow annular plates 331. When the first inner liner 300 is folded and formed, the plurality of annular plates 331 are stacked on top of each other to form the lower buffer portion 330 surrounding the lithium battery 200. The lower part of the lithium battery 200 passes through the hole in the middle of the annular plate 331 and abuts against the second inner liner 400. The annular plate 331 abuts against the outer periphery of the lower part of the lithium battery 200 to support the lower part of the lithium battery 200. By setting the lower buffer portion 330 to be formed by stacking multiple annular plates 331, the strength of the lower buffer portion 330 is greatly enhanced, that is, the lower buffer portion 330 is not easily deformed, making the lower buffer portion 330 more stable and reliable in limiting the lithium battery 200 in the horizontal direction. This ensures that a first buffer gap 340 can always be maintained between the outer periphery of the lithium battery 200 and the side plate 310 of the first inner liner 300, so as to reserve deformation space for the box body 100 and the side plate 310 under impact, and improve the impact resistance of the side of the packaging box.
[0041] In this embodiment, as Figure 4 As shown, the side plate 310 includes multiple support walls 311, which form a mounting cavity 312 to accommodate the lithium battery 200. Each support wall 311 has an annular plate 331 at its bottom. A crease is provided at the connection between the annular plate 331 and the support wall 311. When folding the first inner liner 300, the multiple annular plates 331 are folded into the mounting cavity 312 along the creases to form the lower buffer section 330. By arranging the annular plates 331 and support walls 311 in a one-to-one correspondence, when folding the first inner liner 300, it is only necessary to fold each annular plate 331 sequentially into the mounting cavity 312 to complete the folding of the lower buffer section 330, making the operation convenient and simple, and reducing the difficulty of folding. Preferably, as... Figure 4 and Figure 6 As shown, insert plates 3311 and insertion holes 3312 are respectively provided on the annular plates 331 at the bottom of the two opposing support walls 311. When the annular plates 331 are stacked to form the lower buffer part 330, the annular plates 331 at the bottom of the two opposing support walls 311 are stacked up and down and fixed by inserting the insert plates 3311 and insertion holes 3312 to limit the two and keep them in the stacked state, preventing the two from separating freely and reducing the difficulty of folding the lower buffer part 330.
[0042] To further reduce the difficulty of folding the first inner lining 300, this embodiment sets the multiple support walls 311 into a spliced structure. That is, the two adjacent support walls 311 are spliced to form the edge of the side plate 310, and the two adjacent support walls 311 are respectively provided with matching plugs 3111 and plug holes 3112. The plugs 3111 and plug holes 3112 are inserted to fix the two adjacent support walls 311 to maintain the spliced state.
[0043] In this embodiment, the upper buffer portion 320 includes multiple support plates 321, each corresponding to the top of a support wall 311. The support plates 321 are folded into the mounting cavity 312. When the lithium battery 200 is placed in the mounting cavity 312, one end of the support plate 321 is connected to the support wall 311, and the other end of the support plate 321 abuts against the outer side wall of the upper part of the lithium battery 200, thereby providing support for the upper part of the lithium battery 200. By configuring the upper buffer portion 320 as folded support plates 321, the folded support plates 321 can abut against the outer side wall of the lithium battery 200 to provide horizontal support for the upper part of the lithium battery 200. The cooperation of multiple support plates 321 provides support and restraint for the periphery of the lithium battery 200, resulting in a simple structure and good restraint effect for the lithium battery 200.
[0044] Preferably, such as Figure 5 As shown, after the support plate 321 is folded, it forms a horizontally extending limiting part 3211 and a vertically extending support part 3212. The limiting part 3211 can limit the upper part of the lithium battery 200 in the horizontal direction to cooperate with the lower buffer part 330 to limit it, ensuring that the first buffer gap 340 can always be maintained between the outer periphery of the lithium battery 200 and the side plate 310 of the first inner liner 300. The support part 3212 extends downward and abuts against the outer side wall of the lithium battery 200 to fit the shape of the lithium battery 200, enhance the support effect of the upper buffer part 320 on the lithium battery 200, and make the support of the upper buffer part 320 on the lithium battery 200 more stable and reliable.
[0045] In this embodiment, the second inner liner 400 is an accessory box formed by folding cardboard, and the accessories of the lithium battery 200 are placed in the buffer cavity 410 of the accessory box. This allows the buffer cavity 410 to both reserve space for deformation of the packaging box and the accessory box when the bottom of the packaging box is subjected to external impact, and also to accommodate the accessories of the lithium battery 200 (such as charging cables). This makes full use of the buffer cavity 410 of the second inner liner 400, saves space inside the packaging box, and improves the utilization rate of the second inner liner 400. Using an accessory box formed by folding cardboard as the second inner liner 400 facilitates production and processing, while also allowing the second inner liner 400 to have a greater deformation capacity, resulting in a better cushioning effect for the lithium battery 200.
[0046] In this embodiment, the lithium battery 200 includes a body 210 with internal battery cells and a handle 220 on top of the body 210. A first inner liner 300 wraps around the outer periphery of the body 210, and a second inner liner 400 abuts against the bottom of the body 210. The first inner liner 300 cushions the periphery of the body 210, and the second inner liner 400 cushions the bottom of the body 210, thus providing sufficient protection for the body 210 with battery cells. A third inner liner 500 is also provided inside the box 100. The third inner liner 500 is formed by folding cardboard, such as... Figure 2 As shown, the third inner liner 500 abuts against the top of the handle 220, so that the top of the handle 220 does not directly contact the top of the box 100, but abuts against the third inner liner 500. This creates a second buffer gap 510 between the handle 220 and the top of the box 100. The third inner liner 500 can limit the handle 220 in the vertical direction to prevent the handle 220 from directly contacting the top of the box 100. When the top of the box 100 is impacted, the second buffer gap 510 provides space for the deformation of the top of the box 100, allowing the top of the box 100 to deform towards the second buffer gap 510 without impacting the handle 220, thus protecting the handle 220.
[0047] To prevent the lithium battery 200 from shaking or rotating inside the packaging box, such as Figure 7 As shown, in this embodiment, a limiting groove 520 is provided on the third inner liner 500, and the handle 220 is embedded in the limiting groove 520. This allows the third inner liner 500 to not only cushion and protect the handle 220, but also to limit the handle 220, thereby making the installation of the lithium battery 200 in the packaging box more stable. During transportation, it prevents the lithium battery 200 from rotating or shaking in the installation box, making the packaging of the lithium battery 200 more secure and the transportation more stable.
[0048] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A packaging box for a lithium battery, comprising a box body, characterized in that: The box contains a first inner liner fitted around the outer periphery of the lithium battery and a second inner liner with a buffer cavity inside. The second inner liner abuts against the bottom of the lithium battery. The first inner liner is integrally folded from cardboard to form a side plate surrounding the lithium battery, an upper buffer portion at the top of the side plate, and a lower buffer portion at the bottom of the side plate. The upper buffer portion and the lower buffer portion abut against the outer side wall of the lithium battery to form a first buffer gap between the lithium battery and the side plate.
2. The packaging box for a lithium battery according to claim 1, characterized in that: The lower buffer section includes multiple hollow annular plates, which are stacked to form a lower buffer section surrounding the lithium battery. The annular plates abut against the outer periphery of the lower part of the lithium battery to support the lower part of the lithium battery.
3. The packaging box for a lithium battery according to claim 2, characterized in that: The side plate includes multiple support walls with annular plates at the bottom, the multiple support walls forming a mounting cavity for accommodating the lithium battery, and the multiple annular plates folding into the mounting cavity to form the lower buffer portion.
4. A lithium battery packaging box according to claim 3, characterized in that: Multiple support walls are spliced together to form a side plate surrounding the lithium battery, and adjacent support walls are fixed together by connectors.
5. A lithium battery packaging box according to claim 3, characterized in that: When the annular plates are stacked to form the lower buffer section, the annular plates at the bottom of the two supporting walls are fixed by inserting plates and holes respectively provided on the two.
6. A lithium battery packaging box according to claim 1, characterized in that: The side plate includes multiple support walls that form a mounting cavity for accommodating the lithium battery. The upper buffer portion includes multiple support plates disposed on top of the support walls. The support plates are folded into the mounting cavity and abut against the outer side wall of the upper part of the lithium battery to provide support for the upper part of the lithium battery.
7. A lithium battery packaging box according to claim 6, characterized in that: The support plate is folded to form a laterally extending limiting part and a longitudinally extending support part, with the lower end of the support part abutting against the outer wall of the lithium battery.
8. A lithium battery packaging box according to claim 1, characterized in that: The second inner liner is an accessory box formed by folding cardboard, and the lithium battery accessories are placed in the buffer cavity of the accessory box.
9. A lithium battery packaging box according to claim 1, characterized in that: The lithium battery includes a body with internal battery cells and a handle on top of the body. A first inner liner wraps around the outer periphery of the body, and a second inner liner abuts against the bottom of the body. A third inner liner is also provided inside the box, and the third inner liner abuts against the top of the handle to form a second buffer gap between the handle and the top of the box.
10. A lithium battery packaging box according to claim 9, characterized in that: The third inner lining is provided with a limiting groove, and the handle is embedded in the limiting groove.