CN221057475U - Lithium battery - Google Patents

Abstract

The invention relates to the technical field of batteries, in particular to a lithium battery. When the battery box is matched with the battery changing cabinet, one side of the shell, which faces the bottom wall of the battery compartment, is the lower side of the shell, and one side of the shell, which faces the opening of the battery compartment, is the outer side of the shell; the lithium battery comprises a lithium battery body, wherein the lithium battery body comprises a shell, an installation cavity is formed in the shell, and a battery pack is arranged in the installation cavity; the two ends of the mounting cavity are respectively provided with a first opening and a second opening; an upper cover plate is arranged at the first opening, and a lower cover plate is arranged at the second opening; the upper cover plate is provided with a handle structure and a discharging port charging port, and the lower cover plate is provided with a charging port and a guide groove. The invention can be preferably applied to the battery changing cabinet.

Description

Lithium battery

Technical Field

The invention relates to the technical field of batteries, in particular to a lithium battery.

Background

The lithium battery aims at the lithium battery charged by the current battery changing cabinet, and is matched with electric equipment such as an electric vehicle when discharging, and is matched with the battery changing cabinet when charging. Compared with a battery charged by a traditional charger, the lithium battery is typically characterized in that the lithium battery needs to be moved back and forth between the electric equipment and the battery changing cabinet. Considering that the conventional lithium battery is difficult to be directly applied to a battery changing cabinet in the aspects of safe electricity utilization and easy transportation. Therefore, the structure of the existing lithium battery is considered to be improved so as to be better suitable for the battery changing cabinet.

Disclosure of Invention

The present invention provides a lithium battery that overcomes some or some of the shortcomings of the prior art.

According to the lithium battery, when the lithium battery is matched with the battery changing cabinet, one side of the shell, facing the bottom wall of the battery compartment, is the lower side of the shell, and one side of the shell, facing the opening of the battery compartment, is the outer side of the shell; the lithium battery comprises a lithium battery body, wherein the lithium battery body comprises a shell, an installation cavity is formed in the shell, and a battery pack is arranged in the installation cavity; the two ends of the mounting cavity are respectively provided with a first opening and a second opening; an upper cover plate is arranged at the first opening, and a lower cover plate is arranged at the second opening; the upper cover plate is provided with a handle structure and a discharging port charging port, and the lower cover plate is provided with a charging port and a guide groove.

Preferably, the handle structure includes a handle main body and a handle receiving groove formed at an outer side of the housing, the handle receiving groove being formed at an upper portion of the housing in a vertical direction; the handle body is rotatably arranged at the handle mounting part, and the handle accommodating groove is used for accommodating the handle body.

Preferably, the handle structure main body comprises a holding rod, and both ends of the holding rod are bent towards the same side to form a connecting rod; one end of the connecting rod, which is far away from the holding rod, is rotationally connected with the handle mounting part; the inner side wall of the handle accommodating groove protrudes outwards to form a handle mounting block matched with the handle mounting part.

Preferably, the guide groove is used for guiding and matching with the guide block arranged in the battery compartment, the guide groove is formed at the middle part of the inner side and the lower side of the shell, the guide groove forms openings at the inner side and the lower side of the shell, and the guide block is formed at the corresponding guide groove in the battery compartment.

Preferably, the depth of the guide groove in the inner and outer directions is not smaller than the length of the guide block in the inner and outer directions.

Preferably, the guide block is attached to the bottom wall of the battery compartment, and the height of the guide groove in the up-down direction is not greater than the height of the guide block in the up-down direction.

Preferably, the lower cover plate is inwards recessed to form a protection groove, and the charging port is arranged in the protection groove.

Preferably, the lithium battery body includes a battery control circuit board having a discharge terminal for electrically connecting with the discharge port and a charge terminal for electrically connecting with the charge port.

Preferably, the charging port is located at the lower side of the lower cover plate, and the discharging port is located at the upper side of the upper cover plate.

The invention has the following beneficial effects:

When in actual use, the lithium battery can be lifted up through the handle structure, so that a user can conveniently carry the lithium battery; after the lithium battery enters the battery compartment for charging, the handle structure can be embedded into the upper cover plate, so that the handle structure is prevented from occupying the internal space of the battery compartment, and the handle structure is prevented from being bumped and damaged due to the fact that the handle structure is exposed out of the upper cover plate. In addition, the structure of the charging port and the guide groove can enable the guide groove to be matched with the guide block arranged at the position of the battery changing cabinet when the lithium battery enters the battery compartment, so that the charging port is in plug-in matching with the charging head arranged at the position of the battery changing cabinet.

Drawings

Fig. 1 is a schematic view of a lithium battery body in example 1.

Fig. 2 is a schematic view of the upper end of the lithium battery body in example 1.

Fig. 3 is a schematic view of a handle body in embodiment 1.

Fig. 4 is a schematic view of the lower end of the lithium battery body in example 1.

Fig. 5 is a schematic diagram of the battery changing cabinet in embodiment 1.

Fig. 6 is a schematic view of the battery compartment in example 1.

Fig. 7 is a schematic diagram of a charging head in embodiment 1.

Fig. 8 is a schematic view of a positioning guide mechanism main body in embodiment 1.

Fig. 9 is an enlarged view of the positioning guide mechanism main body in embodiment 1.

Fig. 10 is a schematic view of the discharge port in example 1.

Fig. 11 is a schematic view of the protection groove in embodiment 1.

Fig. 12 is a schematic view of the back surface of the upper cover plate in embodiment 1.

Fig. 13 is a schematic view of the back surface of the lower cover plate in embodiment 1.

Fig. 14 is a schematic view of the tray in embodiment 1.

Fig. 15 is an exploded view of the lithium battery body in example 1.

Detailed Description

For a further understanding of the present invention, the present invention will be described in detail with reference to examples. It is to be understood that the examples are illustrative of the present invention and are not intended to be limiting.

Example 1

As seen in fig. 15, the present embodiment provides a lithium battery. It includes a lithium battery body 100, the lithium battery body 100 including a case 130; the housing 130 has a mounting cavity therein, and a battery 1510 is provided in the mounting cavity; the two ends of the mounting cavity are respectively provided with a first opening and a second opening; an upper cover plate 1002 is arranged at the first opening, and a lower cover plate 1101 is arranged at the second opening; the upper cover 1002 has a handle structure and a discharge opening 1005, and the lower cover 1101 has a charging opening 430 and a guide groove 410.

When the lithium battery is actually used, the lithium battery can be lifted up through the handle structure, so that a user can conveniently carry the lithium battery; after the lithium battery enters the battery compartment 610 for charging, the handle structure can be embedded into the upper cover plate 1002, so that the handle structure is prevented from occupying the internal space of the battery compartment 610, and meanwhile, the handle structure is prevented from being knocked and damaged due to the fact that the handle structure is exposed out of the upper cover plate 1002. In addition, the structure of the charging port 430 and the guide groove 410 can preferably enable the guide groove 410 to form a fit with the guide block 720 arranged at the battery changing cabinet when the lithium battery enters the battery compartment 610, so that the charging port is in plug-in fit with the charging head 710 arranged at the battery changing cabinet.

When the lithium battery is matched with the battery changing cabinet, one side of the casing 130 facing the bottom wall of the battery compartment 610 is the lower side of the casing 130, and one side of the casing 130 facing the opening of the battery compartment 610 is the outer side of the casing 130.

Further, a battery control circuit board having a discharge terminal for electrically connecting with the discharge port 1005 and a charge terminal for electrically connecting with the charge port 430 is also provided at the lithium battery main body 100. Wherein the charging port 430 is located at the lower side of the lower cover plate 1101, and the discharging port 1005 is located at the upper side of the upper cover plate 1002. That is, the lithium battery in this embodiment is structured as a charge-discharge differential port.

The discharging opening 1005 is provided with an electrical connection female head 1220, and the electrical connection female head 1220 can be matched with the electrical connection male head 1008 of the external power line to realize a discharging action.

The charging port 430 has a charging connector 1501, the second opening is formed with a plugging plate 1502, and the charging connector 1501 is disposed at the plugging plate 1502 and extends out from the lower cover 1101.

The lithium battery of the present embodiment can be matched with an electric appliance such as an electric vehicle through the discharge port 1005, and can be matched with a charging device such as a battery-changing cabinet through the charging port 430.

Example 2

Referring to fig. 5, the present embodiment provides a battery changing cabinet for matching with the lithium battery in embodiment 1. The device comprises a box body 510, wherein a plurality of battery bins 610 are arranged at the box body 510; wherein, a battery compartment assembly is arranged in the battery compartment 610, the battery compartment assembly comprises a tray 970 for forming the bottom wall of the battery compartment, a positioning guide mechanism main body for being matched with the lithium battery is arranged at the tray 970, and the positioning guide mechanism main body is provided with a channel 980 for forming the lithium battery to enter and exit at the tray 970; the tray 970 is provided with a charging head 710 and a guide block 720 inside, wherein the charging head 710 is used for being matched with a charging port 430 arranged at the lithium battery, and the guide block 720 is used for being matched with a guide groove 410 arranged at the lithium battery.

Through the above structure, the channel 980 for guiding the lithium battery to enter and exit the battery compartment 610 can be preferably formed in the battery compartment 610, and the charging connection and disconnection between the lithium battery and the battery compartment 610 can be preferably realized.

Meanwhile, the charging head 710 and the guide block 720 are disposed at a mounting seat 760, and the mounting seat 760 is connected to the tray 970. The assembly of the charging head 710 and the guide block 720 is preferably accomplished.

In addition, the battery compartment 610 can be disposed obliquely, and the charging head 710 is disposed at the bottom of the battery compartment 610. So the lithium battery can slide into the lithium battery along the channel 980 to form an electrical connection with the charging cabinet.

It can be appreciated that in this embodiment, the connection and disconnection of the lithium battery to and from the battery compartment 610 can be further achieved by the cooperation of the positioning guide mechanism body and the guide block 720.

Example 3

Referring to fig. 8, 9 and 14, the present embodiment provides a specific implementation of the positioning guide mechanism body used in embodiment 2, and specifically provides a positioning guide mechanism. The positioning and guiding mechanism main body comprises 2 guiding plates 940 which are arranged at intervals along the width direction of the battery compartment 610; the guide plate 940 is disposed along the length direction of the battery compartment 610; the 2 guide plates 940 and the bottom wall of the battery compartment 610 together form a channel 980 for the lithium battery to enter and exit.

Through this kind of structure for the lithium cell can pass in and out battery compartment 610 at passageway 980 department, in the in-process of business turn over, because 2 deflector 940 can carry out spacingly to the both sides of lithium cell simultaneously, so can keep the lithium cell to be in the state of centering preferably, so can realize better that advance out the in-process at the lithium cell and advance out to its gesture and fix a position.

Wherein, the guide plate 940 is provided with a first guide piece, and the first guide piece comprises a mounting hole 960 arranged at the inner side wall of the guide plate 940; the mounting holes 960 are provided along the length direction of the guide plate 940; a second roller 930 is provided in the mounting hole 960 for cooperating with a corresponding sidewall of the lithium battery. So that the guide plate 940 can be engaged with the corresponding lithium battery sidewall by rolling contact, and thus the lithium battery can be preferably moved in and out of the battery compartment 610.

Wherein, the bottom end of the channel 980 is provided with a guide slot 910 arranged along the length direction of the battery compartment 610; the guide slot 910 is provided with a second guide member, the second guide member includes a plurality of first rollers 950 disposed in the guide slot 910, and the first rollers 950 are disposed at intervals along the length direction of the guide slot 910. Therefore, rolling fit with the bottom wall of the lithium battery can be better realized, and the lithium battery can be better facilitated to enter and exit.

Wherein, the side wall of the guide plate 940 near the opening of the battery compartment 610 is provided with a first inclined surface 920. So that a flared guide opening can be preferably formed, thereby facilitating the entry of the lithium battery at the opening of the battery compartment 610.

Wherein the number of guide grooves 910 is 2 and are respectively disposed close to the guide plates 940. That is, the second guide is enabled to have 2, so that smooth support of the lithium battery can be preferably achieved.

Wherein the 2 guide plates 940 are disposed at both sides of the tray 970; the guide groove 910 includes a bar-shaped mounting groove 1401 formed at the tray 970, and a first roller 950 is disposed in the bar-shaped mounting groove 1401. Therefore, the structure is simple and reasonable, and the manufacture and the installation are convenient.

Specifically, the tray 970 is located at the middle of the channel 980 to form a strip-shaped mounting groove 1401, a second guide member is disposed at the strip-shaped mounting groove 1401, the second guide member includes a plurality of first rollers 950 disposed in the strip-shaped mounting groove 1401 along the length direction of the guide groove 910 at intervals, and the first rollers 950 are disposed along the length direction of the guide groove 910 at intervals.

Example 4

Referring to fig. 1 to 3, the present embodiment provides a handle structure of a lithium battery, which can be preferably applied to the embodiment.

The handle structure includes a handle body 120 and a handle receiving groove 220 formed at an outer side of the housing 130, the handle receiving groove 220 forming a handle mounting part at an upper portion of the housing 130 in a up-down direction; the handle body 120 is rotatably provided at the handle mounting portion, and the handle receiving groove 220 is for receiving the handle body 120.

Through the embodiment, in the process of putting the lithium battery into the battery compartment 610, the user can lift the lithium battery by lifting the handle main body 120 and put the lithium battery into the battery compartment 610, so that the user can lift the lithium battery conveniently; after the lithium battery enters the battery compartment 610, the handle body 120 rotates along the handle mounting portion and enters the handle receiving groove 220 under the action of gravity, thereby conveniently receiving the handle body 120.

In this embodiment, the handle main body 120 includes a grip 380, and both ends of the grip 380 are bent to the same side to form a connecting rod 370; one end of the connecting rod 370, which is far away from the holding rod 380, is rotatably connected with the handle mounting part; the handle receiving groove 220 is formed with an inner sidewall protruding outward to form a handle mounting block 240 which is engaged with the handle mounting portion. The structure is simple, and the installation strength of the handle body 120 is improved; meanwhile, due to the cooperation of the inner side wall of the handle receiving groove 220 with the corresponding side of the handle body 120, it is also possible to facilitate the handle body 120 to maintain a state of being positioned in the handle receiving groove 220.

In this embodiment, the end of the connecting rod 370 away from the grip 380 is provided with a first through hole 311 along the width direction of the connecting rod 370, and the handle mounting portion includes a stop lever 210 disposed between the handle accommodating groove 220 and the handle mounting block 240, and the stop lever 210 passes through the first through hole 311. The rotatable assembly of the handle body 120 is preferably achieved.

In this embodiment, the cross section of the grip 380 is rectangular, and the end of the grip 380 is provided with an arc portion 330. Therefore, the processing is convenient, and the connection strength between the holding rod 380 and the connecting rod 370 is better.

In this embodiment, the holding rod 380 forms a hollowed-out groove 390 along the length direction on one side of the bottom wall of the handle accommodating groove 220, and a first reinforcing plate 350 disposed along the width direction of the hollowed-out groove 390 and a second reinforcing plate 360 disposed along the length direction of the hollowed-out groove 390 are disposed in the hollowed-out groove 390. The strength of the handle body 120 itself can be preferably improved.

In this embodiment, the side of the grip 380 remote from the connecting rod 370 forms a recess 320. The handle body 120 is advantageously rotated out of the handle receiving groove 220.

In the present embodiment, a communication groove 230 communicating with the lower side of the handle receiving groove 220 is provided at the outer side of the housing 130, and the communication groove 230 corresponds to the groove 320. Therefore, the use of the hand holding tank 220 is facilitated, and water accumulation is not easy to occur.

In this embodiment, the bottom surface of the groove 320 is an arc surface 340. So that it can be preferably matched with the finger of the user.

In this embodiment, a baffle 310 is disposed at an end of the recess 320 away from the bottom wall of the handle receiving recess 220. So that it can be preferably matched with the finger of the user.

The handle body 120 of the present embodiment can be manufactured integrally by injection molding, for example.

Example 5

As shown in fig. 4-7, this embodiment provides a plug-in charging structure for a lithium battery. The plug-in charging structure comprises a charging port 430 and a guide groove 410 which are arranged on the inner side of the shell 130, and a charging head 710 and a guide block 720 which are arranged in the battery compartment 610; the charging port 430 and the charging head 710 are used for mutually inserting and forming electric connection, and the guide groove 410 is used for forming guide fit with the guide block 720.

Through the embodiment, in the process of putting the lithium battery into the battery compartment 610, the guide block 720 at the bottom of the battery compartment 610 is first inserted into the guide groove 410 at the lower end of the housing 130, so that the housing 130 slides along the length direction of the guide block 720 until the charging head 710 in the battery compartment 610 is inserted into the charging port 430 at the lower end of the housing 130; therefore, a user can charge and connect the lithium battery conveniently and quickly, and when the lithium battery needs to be taken out, the user only needs to pull the handle structure, so that the plug-in and plug-out are facilitated.

The preferred meaning of this structure is that the guide groove 410 and the guide block 720 can be kept engaged all the time during the clutch process of the charging port 430 and the charging head 710, so that damage to the charging head 710 or the housing 130 can be avoided. That is, the matable stroke of the guide groove 410 and the guide block 720 is greater than the maximum insertion depth of the charging port 430 and the charging head 710.

In the present embodiment, the guide grooves 410 are formed at the middle of the inner side and the lower side of the housing 130, the guide grooves 410 are opened at the inner side and the lower side of the housing 130, and the guide blocks 720 are formed at the corresponding guide grooves 410 in the battery compartment 610. So that it can be preferably applied to lithium batteries of different sizes.

In this embodiment, the charging head 710 and the guide block 720 are disposed at a mounting seat 760, and the mounting seat 760 is used for connecting and matching with the battery compartment 610. And thus is simple in structure and facilitates assembly within the battery compartment 610.

In this embodiment, the guide block 720 is attached to the bottom wall of the battery compartment 610, and the height of the guide groove 410 in the up-down direction is not greater than the height of the guide block 720 in the up-down direction. Such a configuration can ensure that the lithium battery is preferably supported by the bottom wall of the battery compartment 610 when the guide block 720 is engaged with the guide groove 410, and thus the state of the lithium battery in the battery compartment 610 can be preferably maintained.

In this embodiment, a rubber pad 730 is disposed at one end of the guide block 720 located at the outer side. Therefore, the depth of the guide groove 410 in the inner and outer directions can be slightly smaller than the length of the guide block 720 in the inner and outer directions, and the impact generated when the lithium battery is in the inner process can be well buffered by arranging the rubber pad 730, so that the lithium battery and the battery compartment 610 can be protected.

Of course, in the present embodiment, the depth of the guide groove 410 in the inner and outer directions can also be set to be not smaller than the length of the guide block 720 in the inner and outer directions. It can be preferably ensured that the guide block 720 does not cause a large impact to the bottom wall of the guide groove 410.

In this embodiment, the guide groove 410 is formed at the opening of the inner side of the housing 130 to form a guide angle 420. So that the guide block 720 is easily engaged with the guide groove 410.

Example 6

The present embodiment provides a specific structure of a charge-discharge outlet for use in embodiment 1, and specifically provides a lithium battery with a charge-discharge outlet.

As shown in fig. 10-13 and 15, a clamping groove 1003 is formed by inwards recessing at the upper cover plate 1002, and a discharge port 1005 is arranged at the clamping groove 1003; the lower cover 1101 is recessed inward to form a protection slot 440, and the protection slot 440 is provided with a charging port 430.

By the structure, the sockets used by the lithium battery during charging and discharging are different and are positioned at the upper end and the lower end of the lithium battery, so that the lithium battery is better convenient for users to distinguish; because the discharge port 1005 is positioned at the corner of the upper cover plate 1002, when the plug of the using apparatus is connected, the plug is not blocked by the side wall of the upper cover plate 1002, thereby being convenient for a user to insert the plug into the discharge port 1005; the charging port 430 is located in the protection slot 440, so as to achieve better protection of the charging connector 1501 at the charging port 430.

Compared with the prior art that the charging and discharging sockets of the lithium battery are identical, the lithium battery with different sockets means that the output port of the battery protection plate is divided into a plurality of wiring ports, and each wiring port corresponds to one battery cell or battery pack. Therefore, current can be split between different wiring ports, each wiring port can work independently, charge and discharge differences between battery monomers can be balanced, and better current distribution and protection performance are provided.

The clamping groove 1003 is located at a corner of the upper cover 1002, and openings are formed at the side walls of the clamping groove 1003 corresponding to the housing 130. This configuration can preferably realize protection of the discharge port 1005 and facilitate the plugging operation at the discharge port 1005.

The discharge port 1005 has an electrically connected female head 1220, and the electrically connected female head 1220 is configured to mate with an electrically connected male head 1008; the female connector 1220 is located at a side wall of the slot 1003, the slot 1003 is opposite to the opening where the female connector 1220 is located, and is electrically connected to the insertion end of the male connector 1008, and the bottom wall of the slot 1003 is located at the insertion end of the male connector 1008 to form a slope 1007. Thus facilitating the plug-and-socket mating between the electrically connected female 1220 and the electrically connected male 1008.

Wherein, a pull rod 1005 is disposed at the position of the electrically connected male head 1008, and a bump 1006 for matching with the slope 1007 is formed at the tail end of the pull rod 1005. Therefore, the connection wire connected to the electrically connected male head 1008 can be preferably pressed by the slope 1007 and the bump 1006, which can facilitate reducing the shake generated between the connection wire and the electrically connected male head 1008, so as to preferably prevent the decrease of the connection strength between the connection wire and the electrically connected male head 1008.

Wherein, a mounting opening is formed at the side wall of the clamping groove 1003, and a female head mounting groove for mounting the female head 1220 of the electrical connection is formed at the corresponding mounting opening inside the upper cover plate 1002. Thus facilitating the installation of the male connector 1220.

It is to be understood that, based on one or several embodiments provided in the present application, those skilled in the art may combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments, which do not exceed the protection scope of the present application.

The invention and its embodiments have been described above by way of illustration and not limitation, and the examples are merely illustrative of embodiments of the invention and the actual construction is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.

Claims (9)

1. When the lithium battery is matched with the battery changing cabinet, one side of the shell (130) facing the bottom wall of the battery compartment (610) is the lower side of the shell (130), and one side of the shell (130) facing the opening of the battery compartment (610) is the outer side of the shell (130); the method is characterized in that: the lithium battery comprises a lithium battery body (100), wherein the lithium battery body (100) comprises a shell (130), an installation cavity is formed in the shell (130), and a battery pack (1510) is arranged in the installation cavity; the two ends of the mounting cavity are respectively provided with a first opening and a second opening; an upper cover plate (1002) is arranged at the first opening, and a lower cover plate (1101) is arranged at the second opening; the upper cover plate (1002) is provided with a handle structure and a charging port of the discharging port (1005), and the lower cover plate (1101) is provided with a charging port (430) and a guide groove (410).

2. A lithium battery according to claim 1, wherein: the handle structure comprises a handle main body (120) and a handle accommodating groove (220) formed at the outer side of the shell (130), wherein the handle accommodating groove (220) is positioned at the upper part of the shell (130) in the up-down direction to form a handle mounting part; the handle body (120) is rotatably provided at the handle mounting portion, and the handle accommodating groove (220) is for accommodating the handle body (120).

3. A lithium battery according to claim 2, wherein: the handle structure main body (120) comprises a holding rod (380), and both ends of the holding rod (380) are bent towards the same side to form a connecting rod (370); one end of the connecting rod (370) far away from the holding rod (380) is rotationally connected with the handle mounting part; the handle accommodation groove (220) has an inner side wall protruding outward to form a handle mounting block (240) which is fitted to the handle mounting portion.

4. A lithium battery according to claim 1, wherein: the guide groove (410) is used for being in guide fit with the guide block (720) arranged in the battery compartment (610), the guide groove (410) is formed in the middle of the inner side and the lower side of the shell (130), the guide groove (410) is formed with openings in the inner side and the lower side of the shell (130), and the guide block (720) is formed in the battery compartment (610) corresponding to the guide groove (410).

5. The lithium battery of claim 4, wherein: the depth of the guide groove (410) in the inner and outer directions is not smaller than the length of the guide block (720) in the inner and outer directions.

6. The lithium battery of claim 4, wherein: the guide block (720) is attached to the bottom wall of the battery compartment (610), and the height of the guide groove (410) in the up-down direction is not greater than the height of the guide block (720) in the up-down direction.

7. A lithium battery according to claim 1, wherein: the lower cover plate (1101) is inwards recessed to form a protection groove (440), and the charging port (430) is arranged in the protection groove (440).

8. A lithium battery according to claim 7, wherein: the lithium battery body (100) includes a battery control circuit board having a discharge terminal for electrically connecting with the discharge port (1005) and a charge terminal for electrically connecting with the charge port (430).

9. A lithium battery according to claim 7, wherein: the charging port (430) is located at the lower side of the lower cover plate (1101), and the discharging port (1005) is located at the upper side of the upper cover plate (1002).