WO2023216774A1

WO2023216774A1 - Battery and electronic device

Info

Publication number: WO2023216774A1
Application number: PCT/CN2023/086305
Authority: WO
Inventors: 周继浩; 李康泉; 蔡小丽
Original assignee: 比亚迪股份有限公司
Priority date: 2022-05-09
Filing date: 2023-04-04
Publication date: 2023-11-16
Also published as: CN217387455U

Abstract

A battery and an electronic device. The battery comprises a cell, a protective circuit board, a first electrode connector and a second electrode connector. The cell is provided with a first tab and a second tab. The protective circuit board comprises a board body, and a first protective switch module and a second protective switch module which are provided on the board body. A first circuit, a second circuit and a third circuit are integrated on the board body. The first protective switch module is disposed on the first circuit. The second protective switch module is disposed on the second circuit. The first electrode connector and the first tab are both connected to the board body and are electrically connected by means of the first circuit and the second circuit which are connected in parallel to each other. The second electrode connector and the second tab are both connected to the board body and are electrically connected by means of the third circuit.

Description

Batteries and electronic equipment

Cross-references to related applications

This disclosure claims priority to the Chinese patent application with application number 202221102492.1 and titled "Battery and Electronic Equipment" filed with the China Patent Office on May 9, 2022, the entire content of which is incorporated into this disclosure by reference.

Technical field

The present disclosure relates to the field of batteries, and in particular, to a battery and electronic equipment.

Background technique

In related technologies, the wiring on the PCB board is complex and the insulation requirements between the lines are high, which will lead to a larger volume of the PCB board. Batteries in electronic devices have an overall volume increase due to the large size of the internal PCB board. A big problem is that batteries take up valuable space in electronic devices.

Contents of the invention

The purpose of this disclosure is to provide a battery and electronic equipment that can realize high-current fast charging, reduce the number of circuits on the protection circuit board, reduce the complexity of the wiring on the protection circuit board, and help reduce the overall volume of the battery. .

In order to achieve the above objects, according to a first aspect of the present disclosure, the present disclosure provides a battery, including:

The battery core includes a first pole and a second pole;

A protection circuit board includes a board body, a first protection switch module and a second protection switch module. The first protection switch module and the second protection switch module are arranged on the board body. The board body is integrated with A first line, a second line and a third line, the first protection switch module is provided on the first line, and the second protection switch module is provided on the second line;

The first pole connector, the first pole connector and the first pole are both connected to the plate body, and the first pole connector and the first pole are connected in parallel with each other through the third pole. A line is electrically connected to the second line; and

The second pole connector, the second pole connector and the second pole tab are both connected to the plate body, and the second pole connector and the second pole tab are electrically connected through the third line. connect;

Wherein, the first pole tab is a positive pole tab, the second pole tab is a negative pole tab, and the first pole connector is a positive pole connection. piece, the second pole connector is a negative pole connector; or, the first pole tab is a negative pole tab, the second pole tab is a positive pole tab, the first pole connector is a negative pole connector, and the second pole connector is Positive connector.

Optionally, the first line and the third line do not cross each other, and the second line and the third line do not cross each other.

Optionally, the first pole tabs and the second pole tabs are spaced apart along the length direction of the plate body, and the first pole connector and the second pole connector are arranged along the length of the plate body. The first pole tabs and the first pole connectors are arranged at intervals in the width direction of the plate body, and the first pole tabs and the first pole connectors are located on both sides of the plate body in the width direction. The body is collinear in the width direction, the second pole tab and the second pole connector are located on both sides of the plate body in the width direction, and the second pole tab and the second pole connector are collinear in the width direction of the plate body;

The plate body has a first surface and a second surface along its thickness direction, the first tab and the second tab are both connected to the first surface, the first protection switch module and the third Two protection switch modules are arranged on the second surface, and the first protection switch module and the second protection switch module are located on the first tab and the first pole along the length direction of the plate body. Both sides of the connector.

Optionally, the first protection switch module and the second protection switch module both include primary protection switches and secondary protection switches spaced along the length direction of the plate body, and the first protection switch module The primary protection switch is arranged close to the first pole and the first pole connector relative to the secondary protection switch of the first protection switch module, and the primary protection switch of the second protection switch module is located relative to the first pole. The secondary protection switch of the second protection switch module is arranged close to the first pole and the first pole connector;

The primary protection switch of the first protection switch module and the secondary protection switch of the first protection switch module are connected in series on the first line, and the primary protection switch of the second protection switch module and the second protection switch module are connected in series on the first line. The secondary protection switches of the two protection switch modules are connected in series on the second line.

Optionally, a second pole pad is provided on the first surface, the second tab is electrically connected to the second pole pad, and the second pole connector has a connector connected to the body of the board. The connecting portion, the connecting portion and the second electrode pad are arranged along the thickness direction of the plate body, and the projection of the second electrode pad in the thickness direction of the plate body is consistent with the position of the connecting portion. The projections in the thickness direction at least partially overlap, and the third line extends along the thickness direction of the plate body and connects the second electrode pad and the connecting portion.

Optionally, the connecting portion is located between the first surface and the second surface.

Optionally, the protection circuit board further includes a first protection control module and a second protection control module. The first protection control module and the second protection control module are disposed on the second surface, along the The length direction of the plate body, The first protection switch module and the second protection switch module are located between the first protection control module and the second protection control module. Both the first protection control module and the second protection control module It is electrically connected to the first protection switch module and the second protection switch module.

Optionally, the battery further includes an insulating and thermally conductive layer covering the second surface, the first protection switch module and the second protection switch module.

Optionally, a first pole pad and a second pole pad are provided on the board body, the first pole is electrically connected to the first pole pad, and the second pole is electrically connected to the third pole. The two-pole pads are electrically connected. The first pole pad and the second pole pad are both formed into a U-shaped structure and each includes a first side plate and a second side plate arranged oppositely. The first side plate Connected to the plate body, the first tab is at least partially clamped between the first side plate of the first electrode pad and the second side plate of the first electrode pad, the third The two-pole tab is at least partially clamped between the first side plate of the second pole pad and the second side plate of the second pole pad, and the first pole pad and the first pole The connecting members are electrically connected through the first line and the second line which are connected in parallel with each other, and the second electrode pad and the second electrode connecting member are electrically connected through the third line.

Optionally, the width of the protective circuit board ranges from 3mm to 25mm.

According to a second aspect of the present disclosure, the present disclosure also provides an electronic device, including the above-mentioned battery, the first pole connector of the battery is connected to the first pole connection end of the electronic device, and the battery The second pole connecting piece is connected to the second pole connecting end of the electronic device.

The battery provided by the present disclosure can not only meet the demand for high-current fast charging, but also reduce the number of lines on the protection circuit board, reduce the wiring complexity and insulation requirements on the protection circuit board, and help reduce the overall size of the battery. This improves the energy ratio per unit volume of the battery and facilitates battery placement.

Other features and advantages of the present disclosure will be described in detail in the detailed description that follows.

Description of the drawings

The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. They are used to explain the present disclosure together with the following specific embodiments, but do not constitute a limitation of the present disclosure. In the attached picture:

FIG. 1 is an exploded view of a battery provided by an exemplary embodiment of the present disclosure.

FIG. 2 is a perspective view of a protective circuit board, a first pole connector and a second pole connector of a battery provided by an exemplary embodiment of the present disclosure.

FIG. 3 is an exploded view of a battery provided by an exemplary embodiment of the present disclosure from another perspective.

FIG. 4 is a top view of a battery provided by an exemplary embodiment of the present disclosure.

Figure 5 is a bottom view of a battery provided by an exemplary embodiment of the present disclosure.

FIG. 6 is a cross-sectional view taken along line "A-A" in FIG. 5 .

Detailed ways

Specific embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present disclosure, and are not intended to limit the present disclosure.

In this disclosure, unless otherwise stated, the directional words used such as "length direction" refer to the length direction as shown in Figure 2, and "width direction" refers to the width direction as shown in Figure 2, " “Inside and outside” refers to the inside and outside of the contour of the relevant parts. In addition, it should be noted that the terms used such as "first", "second", etc. are used to distinguish one element from another element and do not have sequence or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings represent the same elements.

In a battery in the related art, the battery has two external ports, and each external port is provided with a positive terminal and a negative terminal. As a result, the positive ear of the battery core needs to be connected to the battery through two positive lines on the PCB board. The positive terminals on the two external ports are electrically connected, and the negative ear of the battery core needs to be electrically connected to the positive terminals on the two external ports through the two negative lines on the PCB, resulting in a large number of lines on the PCB and wiring. Complex and high insulation requirements between circuits, the size of the PCB needs to be increased to meet the wiring and insulation requirements of its internal circuits. The large size of the PCB causes the overall volume of the battery to increase, occupying valuable space in the electronic device.

As shown in Figures 1 to 6, the present disclosure provides a battery 100, which includes a battery core 1, a protective circuit board 2, a first pole connector 6 and a second pole connector 7. The battery core 1 has a first pole The lug 11 and the second lug 12. The protection circuit board 2 includes a board body 21 and a first protection switch module 24 and a second protection switch module 25 arranged on the board body 21. The board body 21 is integrated with the first circuit 3, The second line 4 and the third line 5, the first protection switch module 24 is arranged on the first line 3, the second protection switch module 25 is arranged on the second line 4, the first pole connector 6 and the first pole lug 11 Both are connected to the plate body 21, and the first pole connector 6 and the first tab 11 are electrically connected through the first line 3 and the second line 4 that are connected in parallel, and the second pole connector 7 and the second tab 12 are both connected. on the plate body 21 , and the second pole connector 7 and the second pole lug 12 are electrically connected through the third line 5 .

The above-mentioned first pole tab 11 can be a positive pole tab, the second pole tab 12 can be a negative pole tab, the first pole connector 6 can be a positive pole connector, and the second pole connector 7 can be a negative pole connector. Alternatively, the above-mentioned first pole tab 11 can be a negative pole tab, the second pole tab 12 can be a positive pole tab, the first pole connector 6 can be a negative pole connector, and the second pole tab 6 can be a negative pole connector. The connector 7 can be a positive connector.

In the above-mentioned battery 100, the first tab 11 of the cell 1 is connected to the first pole connector 6 through the first line 3 and the second line 4 that are connected in parallel, and the current can be divided into the first line 3 and the second line 4 that are connected in parallel. In the second line 4, the first protection switch module 24 is arranged on the first line 3, and the second protection switch module 25 is arranged on the second line 4, which can pass the current in the first line 3 and the second line 4. Current protection is provided to prevent excessive current in the first line 3 and the second line 4 from causing problems such as excessive battery temperature. Moreover, since the first line 3 and the second line 4 are connected in parallel with each other, when the battery 100 is discharged, the current in the first line 3 and the second line 4 can be transferred to the device that needs to be powered through the first pole connector 6 , when the battery 100 is being charged, current can simultaneously charge the battery cell 1 through the first line 3 and the second line 4 , thereby allowing a large current to pass through, realizing fast charging of the battery 100 and improving the charging efficiency of the battery 100 .

Compared with the technical solution in the related art, the positive ear of the battery core needs to be connected to the positive terminal on the two external ports through two lines respectively, and the negative electrode of the battery core needs to be connected to the negative terminal on the two external ports through two lines respectively. , in the battery 100 provided by the present disclosure, the first tab 11 of the battery core 1 is directly connected to the same first pole connector 6 through the first line 3 and the second line 4, and the second tab 12 of the battery core 1 passes through The third line 5 is connected to the second pole connector 7, which reduces the number of lines on the protection circuit board 2, reduces the wiring difficulty and insulation requirements of the lines integrated on the protection circuit board 2, and thus helps to reduce the size of the protection circuit board 2. size, thus reducing the overall volume of the battery and increasing the energy ratio per unit volume of the battery 100. Furthermore, reducing the number of lines on the protection circuit board 2 can also reduce the impedance of the battery circuit, improve the overcurrent capability of the battery 100 , and facilitate fast charging of the battery 100 .

In addition, the first pole connector 6 and the second pole connector 7 are independent of each other and both are used to transmit current in one direction. The internal conductive circuits of the first pole connector 6 and the second pole connector 7 no longer need to be insulated, so there is no need to insulate them. It can be advantageous to reduce the size of the first pole connector 6 and the second pole connector 7, thereby reducing the overall volume of the battery.

In summary, the battery 100 provided by the present disclosure can not only meet the needs of high-current fast charging, but also can reduce the number of lines on the protection circuit board 2 and reduce the wiring complexity and insulation requirements on the protection circuit board 2. It is beneficial to reduce the overall volume of the battery 100, thereby increasing the energy ratio of the battery unit volume, and facilitating the layout of the battery 100.

In the above-mentioned battery, the first circuit 3 , the second circuit 4 and the third circuit 5 can all be printed conductive circuits on the protective circuit board 2 or conductive cores on the protective circuit board 2 or other structures. In this disclosure, for the first circuit 3. The specific structures of the second line 4 and the third line 5 are not limited.

In order to reduce the insulation requirements between the first line 3 and the second line 4 and the third line 5, optionally, the first line The road 3 and the third line 5 do not cross each other, and the second line 4 and the third line 5 do not cross each other, that is, the first line 3 and the second line 4 do not overlap with the third line 5 in the spatial arrangement, for example , as shown in Figure 4, the dotted line a in Figure 4 exemplarily shows the flow path of the current between the second pole lug 12 and the second pole connector 7, and the dotted line b exemplarily shows the first pole The flow path of current between the lug 11 and the first pole connector 6 , the flow of current between the second lug 12 and the second pole connector 7 and the flow path of the current between the first lug 11 and the first pole connector 6 The current flow paths do not cross each other, that is, the first line 3 and the second line 4 do not intersect with the third line 5 in space. On the one hand, the first line 3 and the second line 4 can be reduced. The possibility of a short circuit with the third line 5, on the other hand, can reduce the insulation requirements between the first line 3, the second line 4 and the third line 5, and avoid the volume occupied by the insulating material on the protective circuit board 2, It is beneficial to reduce the overall size of the protection circuit board 2, thereby reducing the overall volume of the battery.

The size of the board body 21 in the length direction is larger than the size of the board body 21 in the width direction. The first line 3, the second line 4 and the third line 5 are all integrated on the board body 21. Since the first line 3 and the second line 21 are The longer the length of the line 4 and the third line 5, the greater the resistance, and the more heat is generated during the charging process. In order to prevent the temperature of the battery 100 from being too high, the first line 3, the second line 4 and the third line are The shorter the length of the line 5 is, the more beneficial it is to improve the performance of the battery 100 . As an exemplary implementation, as shown in FIGS. 4 and 5 , the first pole tabs 11 and the second pole tabs 12 may be spaced apart along the length direction of the plate body 21 , and the first pole connector 6 and the second pole connector are connected. The components 7 can be arranged at intervals along the length direction of the plate body 21, wherein the first pole tabs 11 and the first pole connectors 6 are located on both sides in the width direction of the plate body 21 and are collinear in the width direction of the plate body 21, The collinearity here means that at least one straight line extending along the width direction of the plate body 21 can simultaneously fall within the projection of the first pole lug 11 and the first pole connector 6 in the thickness direction of the plate body 21 . Since the first pole tab 11 and the first pole connector 6 are collinear in the width direction of the plate body 21 and the distance between the first pole tab 11 and the first pole connector 6 is close, the first line 3 and the second line can be shortened. The length of 4 reduces the resistance of the first line 3 and the second line 4. The second pole tab 12 and the second pole connector 7 are located on both sides in the width direction of the plate body 21 and are collinear in the width direction of the plate body 21 , that is, there is at least one straight line extending along the width direction of the plate body 21 It can simultaneously fall within the projection of the second pole tab 12 and the second pole connector 7 in the thickness direction of the plate body 21. The distance between the second pole tab 12 and the second pole connector 7 is short, and the third pole tab 12 can be shortened. The length of line 5 thereby reduces the resistance of the third line 5 .

In the above embodiment, the first protection switch module 24, the second protection switch module 25, the connection position between the first tab 11 and the board body 21 and the connection location between the second tab 12 and the board body 21 can all be located on the board. on the same surface on the body 21, or the connection between the first protection switch module 24, the second protection switch module 25, the first tab 11 and the plate body 21 The connecting position and the connecting position of the second tab 12 and the plate body 21 may be located on different surfaces of the plate body 21 respectively. In order to reduce the volume of the plate body 21 and facilitate the arrangement of the first protection switch module 24 and the second protection switch module 25, optionally, as shown in Figures 1 to 3, the plate body 21 may have a first surface along its thickness direction. 22 and the second surface 23, the first tab 11 and the second tab 12 are both connected to the first surface 22, the first protection switch module 24 and the second protection switch module 25 are arranged on the second surface 23, the first protection switch module 24 and the second protection switch module 25 are arranged on the second surface 23. The switch module 24 and the second protective switch module 25 are located on both sides of the first pole lug 11 and the first pole connector 6 along the length direction of the plate body 21 . Among them, the first tab 11 and the second tab 12 are connected to the first surface 22, and the first protection switch module 24 and the second protection switch module 25 are arranged on the second surface 23, which can fully utilize the surface of the protection circuit board 2. , reducing the overall volume of the protection circuit board 2. The first protection switch module 24 and the second protection switch module 25 are located on both sides of the first pole lug 11 and the first pole connector 6 along the length direction of the plate body 21 , so that the first protection switch module 24 and the second protection switch There is a certain distance between the modules 25, which is beneficial to the heat dissipation of the first protection switch module 24 and the second protection switch module 25, and avoids the accumulation of heat in the first protection switch module 24 and the second protection switch module 25, causing the battery 100 to be overly hot, etc. question. Moreover, the first protection switch module 24 and the second protection switch module 25 are located on both sides of the first pole lug 11 and the first pole connector 6 along the length direction of the plate body 21 , which can facilitate the connection of the first line 3 and the second line 4 Arrangement, the first protective switch module 24 is arranged on the first line 3, and the second protective switch module 25 is arranged on the second line 4, then the first line 3 and the second line 4 are located at the third line along the length direction of the plate body 21. On both sides of one pole lug 11 and the first pole connector 6, the first line 3 and the second line 4 do not cross or overlap, which can avoid a short circuit between the first line 3 and the second line 4, thereby reducing the risk of the first line. The insulation requirement between 3 and the second line 4 facilitates reducing the size of the protection circuit board 2 .

In order to shorten the length of the third line 5 , optionally, as shown in FIGS. 5 and 6 , a second electrode pad 221 is provided on the first surface 22 , and the second tab 12 is electrically connected to the second electrode pad 221 , the second pole connector 7 has a connecting portion 71 connected to the plate body 21 , the connecting portion 71 and the second pole pad 221 are arranged along the thickness direction of the plate body 21 , the second pole pad 221 is in the thickness direction of the plate body 21 The projection on is at least partially overlapped with the projection of the connecting portion 71 in the thickness direction. The third line 5 extends along the thickness direction of the plate body 21 and connects the second electrode pad 221 and the connecting portion 71 . The third line 5 is shorter. The path is connected to the second electrode pad 221 and the second electrode connector 7. The resistance of the third line 5 is very small, and the heat generated during overcurrent (especially large current) is small, which is beneficial to improving the overcurrent of the battery 100. ability.

In the above embodiment, the connecting portion 71 may be connected to the first surface 22 of the plate body 21 . In order to facilitate the arrangement of the connecting portion 71 and the second pole lug 12 , optionally, the connecting portion 71 can be located between the first surface 22 and the second surface 23 , that is, the connecting portion 71 is located inside the plate body 21 and the second pole The ear 12 is electrically connected to the second pole pad 221, and the second pole pad 221 is conductively connected to the connection portion 71 of the second pole connector 7 through the third line 5. Since the connection portion 71 is located on the first surface Between the surface 22 and the second surface 23, the second tab 12 is connected to the first surface 22, and the connecting portion 71 and the second tab 12 are spatially staggered, so that the gap between the connecting portion 71 and the second tab 12 can be avoided. A short circuit occurs, reducing the difficulty of insulation.

Optionally, the first pole connector 6 may also include a connecting portion. The connecting portion of the first pole connector 6 may extend into the interior of the plate body 21 and be located between the first surface 22 and the second surface 23 . The circuit 3 may include a first section, a second section and a third section connected in sequence. The first section extends from the first electrode pad 222 to the second surface 23 of the board 21 along the thickness direction of the board 21 . The second section For connecting to the first protective switch module 24, the third section extends from the second surface 23 along the thickness direction of the plate body 21 to the connecting portion of the first pole connector 6. The second circuit 4 may include a fourth section, a fifth section and a sixth section connected in sequence. The fourth section extends from the first electrode pad 222 to the second surface 23 of the board 21 along the thickness direction of the board 21 . The five sections are used to connect to the second protective switch module 25 , and the sixth section extends from the second surface 23 along the thickness direction of the plate body 21 to the connecting portion of the first pole connector 6 .

As an exemplary embodiment, the first pole connector 6 may include a first pole connector and a first flexible circuit board. The first pole connector is used to connect to the first terminal inside the electronic device. The first flexible circuit board One end is connected to the first pole connector, and the other end is connected to the inside of the plate body 21 to form a connecting portion of the first pole connector 6 . The second pole connector 7 may include a second pole connector and a second flexible circuit board. The second pole connector is used to connect to the second terminal on the electronic device. One end of the second flexible circuit board is connected to the second pole connection. The other end is connected to the inside of the plate body 21 to serve as the connecting portion 71 of the second pole connector 7 .

As shown in Figure 2, optionally, the first protection switch module 24 and the second protection switch module 25 both include primary protection switches 26 and secondary protection switches 27 spaced apart along the length direction of the plate body 21. The primary protection switch 26 of the switch module 24 is arranged close to the first pole lug 11 and the first pole connector 6 relative to the secondary protection switch 27 of the first protection switch module 24. The primary protection switch 26 of the second protection switch module 25 Relative to the secondary protection switch 27 of the second protection switch module 25, which is arranged close to the first pole lug 11 and the first pole connector 6, the primary protection switch 26 and the secondary protection switch 27 of the first protection switch module 24 are connected in series. On a line 3 , the primary protection switch 26 and the secondary protection switch 27 of the second protection switch module 25 are connected in series on the second line 4 .

In the above embodiment, the first line 3 can flow through the primary protection switch 26 and the secondary protection switch 27 of the first protection switch module 24 in sequence along the length direction of the plate body 21 , and the second line 4 can flow along the length direction of the plate body 21 The length direction of the first-level protection switch 26 and the second-level protection switch 27 of the second protection switch module 25 are sequentially arranged. The arrangement of the first line 3 and the second line 4 is simple and does not cause problems such as rewinding or bending, which can reduce the first The overall length of the line 3 and the second line 4 reduces the resistance of the first line 3 and the second line 4 .

Optionally, the protection circuit board 2 may also include a first protection control module 28 and a second protection control module 29. A protection control module 28 and a second protection control module 29 are arranged on the second surface 23. Along the length direction of the plate body 21, the first protection switch module 24 and the second protection switch module 25 are located between the first protection control module 28 and the second protection control module 29. Between the two protection control modules 29, the first protection control module 28 and the second protection control module 29 are both electrically connected to the first protection switch module 24 and the second protection switch module 25. Among them, the distance between the first protection control module 28 and the second protection control module 29 is relatively large, and the two will not affect each other, which is conducive to the heat dissipation requirements between different modules and can ensure the stability and safety of the battery 100.

Optionally, the first protection control module 28 may be a software control module and may be installed on the second surface 23 close to the second pole lug 12 and the second pole connector 7 .

The protective circuit board 2 can be installed on the end face of the battery core 1 through the insulating mounting bracket 9. The insulating mounting bracket 9 can avoid short circuit between the protective circuit board 2 and the battery core 1, wherein the first surface 22 of the protective circuit board 2 can Bonded to the insulating mounting bracket 9. This disclosure does not specifically limit this.

In order to facilitate heat dissipation of the first protection switch module 24 and the second protection switch module 25 , optionally, the battery 100 may also include an insulating and heat-conducting layer 8 covering the second surface 23 , the first protection switch module 24 and on the second protection switch module 25. The insulating and heat-conducting layer 8 here can avoid problems such as short circuits caused by contact between the protective circuit board 2 and other structures. At the same time, the insulating and heat-conducting layer 8 can conduct the heat generated by the first protection switch module 24 and the second protection switch module 25 to the outside. , thereby facilitating the heat dissipation of the first protection switch module 24 and the second protection switch module 25, preventing the temperature inside the battery 100 from being too high, and extending the service life of the battery 100.

The first tab 11 and the second tab 12 are both connected to the board body 21 of the protection circuit board 2 . Optionally, as shown in FIGS. 3 and 6 , the board body 21 may be provided with an electrical connector connected to the first tab 11 . The connected first electrode pad 222 and the second electrode pad 221 electrically connected to the second tab 12 are both formed into a U-shaped structure and include oppositely arranged The first side plate 223 and the second side plate 224 are connected to the plate body 21 . The first tab 11 is at least partially clamped between the first side plate 223 and the first pole of the first electrode pad 222 . Between the second side plate 224 of the soldering pad 222, the second pole lug 12 is at least partially sandwiched between the first side plate 223 of the second pole pad 221 and the second side plate 224 of the second pole side plate, The first electrode pad 222 and the first electrode connector 6 are electrically connected through the first line 3 and the second line 4 connected in parallel, and the second electrode pad 221 and the second electrode connector 7 are electrically connected through a third line. 5 electrical connections. The first tab 11 can at least partially be in surface contact with the first side plate 223 of the first pole pad 222 and the second side plate 224 of the first pole pad 222. The first pole 11 and the first pole The circulation area for current flowing between the pads 222 is large. Similarly, the circulation area for current flowing between the second pole lug 12 and the second pole pad 221 is large, and the resistance at the contact position is small. When the current passes through The heat is small, thereby allowing large current to flow, ensuring that the battery 100 has good performance.

The volume of the battery 100 is affected by various factors such as battery capacity, maximum rated current, size of the protection circuit board 2 and battery installation space. The greater the battery capacity or maximum rated current of the battery 100, the smaller the battery cell 1 or the protection circuit inside the battery 100. The size of the board 2 is also larger. When the battery 100 is installed in an electronic device such as a mobile phone or a tablet computer, the volume of the battery 100 needs to be adjusted according to the installation space inside the electronic device. The size of the protection circuit board 2 inside the battery 100 is also affected by various factors such as the maximum rated current of the battery, circuit complexity, and circuit insulation requirements. In the battery 100 of the present disclosure, by reducing the complexity of the circuits on the protection circuit board 2 and the insulation requirements between the circuits, the size of the protection circuit board 2 can be reduced while ensuring the same maximum current flow. In an exemplary embodiment, the width of the protective circuit board 2 of the battery 100 of the present disclosure may range from 3 mm to 25 mm.

The present disclosure also provides an electronic device, including the above-mentioned battery 100. The first pole connector 6 of the battery 100 is connected to the first pole connection end of the electronic device, and the second pole connector 7 of the battery 100 is connected to the third pole connection end of the electronic device. Two-pole connection. The electronic device here may be a mobile device such as a mobile phone, a tablet computer, or a smart wearable device. This disclosure does not limit the specific type and function of the electronic device. Wherein, the first pole connector 6 of the above-mentioned battery 100 may be a positive pole connector, the first pole connector of the electronic device may be a positive pole connector, the second pole connector 7 may be a negative pole connector, and the second pole connector of the electronic device may be a cathode connector. The polar connection terminal may be a negative terminal. Alternatively, the first terminal connector 6 of the battery 100 can be a negative terminal, the first terminal of the electronic device can be a negative terminal, the second terminal 7 can be a positive terminal, and the second terminal of the electronic device can be a positive terminal. The terminal can be the positive connection terminal.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings. However, the present disclosure is not limited to the specific details of the above-mentioned embodiments. Within the scope of the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure. These simple modifications all belong to the protection scope of the present disclosure.

In addition, it should be noted that each of the specific technical features described in the above-mentioned specific embodiments can be combined in any suitable manner without conflict. In order to avoid unnecessary repetition, this disclosure describes various possible combinations. The combination method will not be further explained.

In addition, any combination of various embodiments of the present disclosure can also be carried out, and as long as they do not violate the idea of the present disclosure, they should also be regarded as the contents disclosed in the present disclosure. The terms "comprising,""comprising," or any other variations thereof of embodiments of the present disclosure are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements not only includes those elements, but also includes none. Other elements expressly listed, or elements inherent to such process, method, article or equipment. Without further limitation, an element qualified by the statement "comprises a..." does not exclude the inclusion of a process, method, article, or article that includes the stated element. There are additional identical elements present in the equipment.

The term "or" in this disclosure means an inclusive "or" rather than an exclusive "or". Reference to a "first" component does not necessarily require that a "second" component be provided. Furthermore, references to "first" or "second" components do not limit the mentioned components to a particular order unless expressly indicated otherwise. The term "based on" means "based at least in part on."

Claims

A battery (100), characterized by including:

The battery core (1) includes a first tab (11) and a second tab (12);

Protection circuit board (2), including a board body (21), a first protection switch module (24) and a second protection switch module (25), the first protection switch module (24) and the second protection switch module (25) are all arranged on the board body (21), and the first circuit (3), the second circuit (4) and the third circuit (5) are integrated on the board body (21). The first protection circuit The switch module (24) is arranged on the first line (3), and the second protection switch module (25) is arranged on the second line (4);

A first pole connector (6), both the first pole connector (6) and the first tab (11) are connected to the plate body (21), and the first pole connector (6) ) and the first tab (11) are electrically connected through the first line (3) and the second line (4) which are parallel to each other; and

The second pole connector (7), the second pole connector (7) and the second tab (12) are both connected to the plate body (21), and the second pole connector (7) ) and the second tab (12) are electrically connected through the third line (5);

Wherein, the first pole tab (11) is a positive pole tab, the second pole tab (12) is a negative pole tab, the first pole connector (6) is a positive pole connector, and the second pole connector (7) is Negative electrode connector; or, the first electrode tab (11) is a negative electrode tab, the second electrode tab (12) is a positive electrode tab, the first electrode connector (6) is a negative electrode connector, and the second electrode connector (7) is the positive connector.
The battery (100) according to claim 1, characterized in that the first line (3) and the third line (5) do not cross each other, and the second line (4) and the third line (5) do not cross each other. Lines (5) do not cross each other.
The battery (100) according to claim 1 or 2, characterized in that the first tab (11) and the second tab (12) are spaced apart along the length direction of the plate body (21). , the first pole connector (6) and the second pole connector (7) are spaced apart along the length direction of the plate body (21), and the first pole tab (11) and the first pole connector (7) are spaced apart along the length direction of the plate body (21). The pole connectors (6) are located on both sides of the plate body (21) in the width direction, and the first pole tab (11) and the first pole connector (6) are on the plate body (21). ) are collinear in the width direction, the second pole tab (12) and the second pole connector (7) are located on both sides of the plate body (21) in the width direction, and the second pole The ears (12) and the second pole connector (7) are collinear in the width direction of the plate body (21);

The plate body (21) has a first surface (22) and a second surface (23) along its thickness direction, and the first tab (11) and the second tab (12) are both connected to the The first surface (22), the first protection switch module (24) and the second protection switch module (25) are both arranged on the second surface (23), the first protection switch module (24 ) and the second protection switch module (25) are located on both sides of the first pole tab (11) and the first pole connector (6) along the length direction of the plate body (21).
The battery (100) according to claim 3, characterized in that both the first protection switch module (24) and the second protection switch module (25) include a battery along the length direction of the plate body (21). A primary protection switch (26) and a secondary protection switch (27) are arranged at intervals. The primary protection switch (26) of the first protection switch module (24) is relative to the primary protection switch (26) of the first protection switch module (24). The secondary protection switch (27) is arranged close to the first pole lug (11) and the first pole connector (6), and the primary protection switch (26) of the second protection switch module (25) is relative to The secondary protection switch (27) of the second protection switch module (25) is arranged close to the first pole (11) and the first pole connector (6);

The primary protection switch (26) of the first protection switch module (24) and the secondary protection switch (27) of the first protection switch module (24) are connected in series on the first line (3), so The primary protection switch (26) of the second protection switch module (25) and the secondary protection switch (27) of the second protection switch module (25) are connected in series on the second line (4).
The battery (100) according to claim 3 or 4, characterized in that a second pole pad (221) is provided on the first surface (22), and the second pole tab (12) and the The second electrode pad (221) is electrically connected, and the second electrode connector (7) has a connecting portion (71) connected to the plate body (21). The connecting portion (71) is connected to the second electrode pad (221). The pole pads (221) are arranged along the thickness direction of the plate body (21), and the projection of the second pole pad (221) in the thickness direction of the plate body (21) is consistent with the connecting portion (71). ) in the thickness direction at least partially overlap, the third line (5) extends along the thickness direction of the plate body (21) and connects the second electrode pad (221) and the connection Ministry(71).
The battery (100) according to claim 5, characterized in that the connecting portion (71) is located between the first surface (22) and the second surface (23).
The battery (100) according to any one of claims 3-6, characterized in that the protection circuit board (2) It also includes a first protection control module (28) and a second protection control module (29). The first protection control module (28) and the second protection control module (29) are arranged on the second On the surface (23), along the length direction of the plate body (21), the first protection switch module (24) and the second protection switch module (25) are located on the first protection control module (28) and the second protection control module (29), the first protection control module (28) and the second protection control module (29) are both connected with the first protection switch module (24) and the The second protective switch module (25) is electrically connected.
The battery (100) according to any one of claims 3-7, characterized in that the battery (100) further includes an insulating and heat-conducting layer (8), the insulating and heat-conducting layer (8) covering the first On the two surfaces (23), the first protection switch module (24) and the second protection switch module (25).
The battery (100) according to any one of claims 1 to 4, characterized in that the plate body (21) is provided with a first electrode pad (222) and a second electrode pad (221), The first pole tab (11) is electrically connected to the first pole pad (222), the second pole tab (12) is electrically connected to the second pole pad (221), and the first pole tab (12) is electrically connected to the second pole pad (221). The pole pad (222) and the second pole pad (221) are both formed into a U-shaped structure and each include a first side plate (223) and a second side plate (224) arranged oppositely. The first side The plate (223) is connected to the plate body (21), and the first tab (11) is at least partially clamped between the first side plate (223) of the first pole pad (222) and the Between the second side plate (224) of the first pole pad (222), the second tab (12) is at least partially clamped by the first side plate (221) of the second pole pad (221). 223) and the second side plate (224) of the second pole pad (221), and the first pole pad (222) and the first pole connector (6) are connected in parallel with each other. The first circuit (3) and the second circuit (4) are electrically connected, and the second electrode pad (221) and the second electrode connector (7) are connected through the third circuit (5) Electrical connection.
The battery (100) according to any one of claims 1-9, characterized in that the width of the protective circuit board (2) ranges from 3mm to 25mm.
An electronic device, characterized in that it includes the battery (100) according to any one of claims 1 to 10, and the first pole connector (6) of the battery (100) is connected to the first pole of the electronic device. The second pole connection end of the battery is connected to the second pole connection end of the electronic device.