CN212587599U

CN212587599U - Battery, battery thermal management device and movable platform

Info

Publication number: CN212587599U
Application number: CN202020633643.0U
Authority: CN
Inventors: 马德扬; 李鹏
Original assignee: SZ DJI Technology Co Ltd
Current assignee: SZ DJI Technology Co Ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-02-23
Anticipated expiration: 2030-04-23

Abstract

A battery and battery thermal management device and movable platform thereof, wherein, the battery includes casing, electric core group and battery thermal management device, wherein, electric core group includes a plurality of electric cores that range upon range of arrangement, electric core group includes relative first end and the second end that sets up in range upon range of orientation, electric core includes along the lateral part that range upon range of orientation extends, battery thermal management device includes: the first heat insulation piece is arranged at the first end of the electric core group so as to prevent heat from being radiated from the first end of the electric core group; the second heat insulation piece is arranged at the second end of the electric core group so as to prevent heat from being radiated from the second end of the electric core group; the side part of each battery cell forms a heat dissipation area, and the heat of each battery cell can be dissipated from the side part of the battery cell. The technical scheme provided by the technical scheme can improve the heat dissipation uniformity of each battery cell, has good soaking capacity, and greatly prolongs the service life of the whole battery.

Description

Battery, battery thermal management device and movable platform

Technical Field

The embodiment of the utility model provides a relate to energy memory design technical field, especially relate to a battery and battery thermal management device and movable platform thereof.

Background

Along with the rapid development of unmanned aerial vehicles, the battery use requirements of unmanned aerial vehicles are also gradually improved. The cycle life of the multi-series-parallel battery is often strongly related to the temperature difference control and heat dissipation functions among the battery cores. Traditional power battery for unmanned aerial vehicle is many electric cores only and piles up nearly no heat management device, and many electric cores pile up, lead to the heat dissipation of each electric core inhomogeneous, and the temperature difference between each electric core is great, and the temperature difference that can not effectively control between the electric core is soaking ability relatively poor promptly, can make the whole life-span of battery descend by a wide margin.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect among the prior art, the embodiment of the utility model provides a battery heat management device, battery and movable platform.

The embodiment of the utility model provides a first aspect provides a battery thermal management device, is applied to electric core group, electric core group includes a plurality of electric cores that range upon range of arrangement; the battery cell group includes first end and second end that sets up in the range upon range of orientation relative, the battery cell includes along the lateral part that range upon range of orientation extends, the device includes:

the first heat insulation piece is arranged at the first end of the electric core group so as to prevent heat from being radiated from the first end of the electric core group;

the second heat insulation piece is arranged at the second end of the electric core group so as to prevent heat from being radiated from the second end of the electric core group; and

the lateral heat conducting piece is arranged on the lateral part of the battery cell and used for transmitting the heat of the battery cell, so that the heat of each battery cell can be transmitted to the lateral heat conducting piece through the lateral part of the battery cell. Further, the first heat insulation piece is attached to the first end of the electric core group; and/or the second heat insulation piece is attached to the second end of the electric core group.

Further, the electric core group comprises side walls extending along the stacking direction, and the lateral heat-conducting member is arranged on at least one side wall of the electric core group.

Further, the side parts of the battery cells are flush to form the side wall of the battery core group.

Further, the method also comprises the following steps:

the lateral heat-conducting parts are arranged on at least two opposite side walls of the electric core group so as to conduct heat of the electric core group.

Furthermore, the lateral heat conducting parts comprise vertical arms and transverse arms, and the vertical arms of the two lateral heat conducting parts are respectively shielded from two opposite side walls of the electric core group;

the cross arms of the two lateral heat-conducting pieces are mutually overlapped at the first end of the electric core group, and the cross arms are positioned at the outer side of the first heat-insulating piece; or the cross arms of the two lateral heat conducting pieces are mutually overlapped at the second end of the electric core group, and the cross arms are positioned at the outer side of the second heat insulating piece.

Furthermore, the two cross arms are mutually bonded.

Further, the lateral heat-conducting member includes at least one of: aluminum foil, copper foil, graphite flakes.

Furthermore, the thickness of the lateral heat-conducting piece is 0.1 mm-0.5 mm.

Further, the method also comprises the following steps:

and the heating element is arranged in the battery cell group, and in the stacking direction, at least one of two stacking surfaces of each battery cell is in contact with the heating element.

Further, the heating member is attached to at least one lamination surface of the battery core.

Further, the lateral heat-conducting member is attached to the heating member.

Further, the lateral heat-conducting member and the heating member are bonded by a heat-conducting resin.

Further, the heating element is a flexible body or a foldable rigid body.

Further, the heating member includes first heat-conducting layer, middle zone of heating and the second heat-conducting layer of range upon range of arrangement, the electric core with first heat-conducting layer or second heat-conducting layer contact.

Further, the first thermally conductive layer includes at least one of: an aluminum foil layer, a copper foil layer and a graphite layer;

and/or the second thermally conductive layer comprises at least one of: aluminum foil layer, copper foil layer, graphite layer.

Further, the first heat conducting layer and the second heat conducting layer are made of the same material.

Further, the thickness of the first heat conduction layer is 0.05 mm-0.2 mm; and/or the thickness of the second heat conduction layer is 0.05 mm-0.2 mm.

Further, the intermediate heating layer includes the heating circuit, the heating circuit is connected to the connector through the wire, the connector is used for being connected with the power.

Furthermore, the heating circuit also comprises an overcurrent protection device, and the heating circuit is connected with the overcurrent protection device through a lead.

Further, the electric core group comprises: at least one battery cell double-body group and at least one battery cell single-body group; the cell binary group comprises two cells which are arranged in a stacked mode.

Furthermore, the electric core double-body group and the electric core single-body group are arranged adjacently, and the heating element is at least wound between the electric core double-body group and the electric core single-body group.

Furthermore, the electric core double-body group comprises at least two electric core double-body groups, at least two electric core double-body groups are arranged adjacently, and the heating element is at least wound between the two adjacent electric core double-body groups.

Further, at least two electric core monomer groups are adjacent to each other, and the heating member is at least wound between two adjacent electric core monomer groups.

Further, the method also comprises the following steps:

and the buffer medium layer is clamped between two electric cores in the electric core double-body group.

Furthermore, a buffer medium layer is arranged at the first end of the electric core group and positioned at the outer side of the first heat insulation piece; and/or a buffer medium layer is arranged at the second end of the electric core group and positioned at the outer side of the second heat insulation piece.

Further, the buffer medium layer comprises at least one of the following: a foam layer, a sponge layer and a buffer glue layer.

Further, the first and second insulators may comprise a plastic or rubber member.

The embodiment of the utility model provides a second aspect provides a battery, include: the battery heat management device comprises a shell, a core pack and the battery heat management device, wherein the core pack comprises a plurality of battery cells arranged in a stacked mode, the core pack comprises a first end and a second end which are oppositely arranged in the stacking direction, and the battery cells comprise side parts extending along the stacking direction.

Further, the housing includes an end shell opposite to the first and second heat insulators, and a side heat dissipation shell opposite to a side of the battery cell.

Furthermore, a plurality of ribs are arranged on the outer surface of the lateral radiating shell, and a plurality of radiating air ducts are formed by the ribs in a surrounding mode.

Further, the side heat dissipation case includes at least one of: plastic part, metal part, plastic and metal assembly.

Further, the outer side wall of the lateral heat conducting piece is in contact with the inner side wall of the lateral heat dissipation shell.

Furthermore, the convex ribs are made of heat-insulating plastic parts.

Further, the heat dissipation shell and the end shell are integrally formed in an injection molding mode, or the side heat dissipation shell and the end shell are bonded together.

A third aspect of the embodiments of the present invention provides a movable platform, including an engine body and a battery, the engine body has a cavity for accommodating the battery, wherein the battery includes a casing, a core pack and any one of the above battery thermal management device, wherein the core pack includes a plurality of battery cells arranged in a stacked manner, the core pack includes a first end and a second end which are arranged in a stacked manner relatively, and the battery cells include a side portion extending along the stacked direction.

Furthermore, the convex ribs are made of heat-insulating plastic parts.

Furthermore, the extending direction of the heat dissipation air duct is consistent with the front-back direction of the movable platform.

Further, the movable platform comprises an unmanned aerial vehicle.

Based on the above, the battery and the battery thermal management device and the movable platform provided by the embodiment of the invention, the battery core group in the battery has the first end and the second end which are oppositely arranged in the stacking direction, each electric core radiates heat through the side part, the heat cannot be radiated to the outside from the first end and the second end of the electric core group, but is radiated through the side part of the electric core, therefore, for the cell group, the situation that the temperature of the cells at the first end and the second end is lower than that of the cells at the inner layer due to the fact that the cells corresponding to the first end and the second end are in the most contact with the outside air does not occur, set up the heat insulating part at electric core group both ends, can effectively reduce the weight that both sides electricity core received external environment temperature to influence, improved every electric core radiating homogeneity in the at utmost, soaking ability is better, and the holistic life of battery also improves by a wide margin.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a cross-sectional view of a battery provided in an embodiment of the present invention;

fig. 2 is an exploded schematic view of a battery thermal management device according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a heating element according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of a battery thermal management device according to an embodiment of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

fig. 6 is a schematic structural diagram of a movable platform according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, and a person skilled in the art can solve the technical problem within a certain error range to substantially achieve the technical effect.

Furthermore, the term "coupled" is intended to include any direct or indirect coupling. Thus, if a first device couples to a second device, that connection may be through a direct connection, or through an indirect connection via other devices.

It should be understood that the term "and/or" is used herein only to describe an association relationship of associated objects, and means that there may be three relationships, for example, a1 and/or B1, which may mean: a1 exists alone, A1 and B1 exist simultaneously, and B1 exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The inventor has found through creative work that, in the prior art, the batteries stacked by multiple battery cores are in a stacked form, for the battery core group, the battery cores located at the topmost and bottommost are in direct contact with the outside air, and the heat dissipation effects of the battery cores at the topmost and bottommost are the best, so that the heat dissipation of the inner battery core and the battery cores at the topmost and bottommost are uneven, and the service life of the whole battery is seriously affected.

For solving the technical problem, the embodiment of the utility model provides a battery and battery thermal management device and movable platform thereof, it is thermal-insulated through the topmost with the bottommost with electric core group, to every electric core, all through the lateral part heat dissipation of electric core, improved every electric core radiating homogeneity in the at utmost, soaking ability is better, and the holistic life of battery also improves by a wide margin.

The following is described in detail by way of specific examples:

fig. 1 is a cross-sectional view of a battery provided in an embodiment of the present invention; fig. 2 is an exploded schematic view of a battery thermal management device according to an embodiment of the present invention; fig. 3 is a cross-sectional view of a heating element according to an embodiment of the present invention; fig. 4 is a cross-sectional view of a battery thermal management device according to an embodiment of the present invention; fig. 5 is an enlarged view of a portion a in fig. 4. Referring to fig. 1 to 4, an embodiment of the present invention provides a battery, including: the battery pack comprises a housing 10, a battery core pack 20 and a battery thermal management device, wherein the battery core pack 20 comprises a plurality of battery cells 21 arranged in a stacked manner, the battery core pack 20 comprises a first end 201 and a second end 202 which are oppositely arranged in a stacking direction (the direction shown by an arrow in fig. 1), and the battery cells 21 comprise side parts 211 extending in the stacking direction. A plurality of battery cells 21 are stacked to form a battery pack 20, and a battery thermal management device and the battery pack 20 are accommodated in the cavity of the casing 10. In addition, the shape of the internal cavity of the casing 10 may match the shape of the battery cell group 20 to stably maintain the respective battery cells 21 in the internal cavity of the casing 10.

Taking the form of stacking the cells 21 in fig. 1 as an example, the upper surface of the top cell 21 of the cell pack 20 is the first end 201 of the cell pack 20, and the lower surface of the bottom cell 21 of the cell pack 20 is the second end 202 of the cell pack 20. In some embodiments, if the cells 21 are stacked in a left-right arrangement, the left surface of the left cell 21 of the cell pack 20 can be the first end 201 of the cell pack 20, and the right surface of the right cell 21 of the cell pack 20 can be the second end 202 of the cell pack 20.

The battery thermal management device includes: a first heat insulation member 31 and a second heat insulation member 32, wherein the first heat insulation member 31 is disposed at the first end 201 of the electric core set 20 to prevent heat from being dissipated from the first end 201 of the electric core set 20, and the second heat insulation member 32 is disposed at the second end 202 of the electric core set 20 to prevent heat from being dissipated from the second end 202 of the electric core set 20.

The battery thermal management device may further include a lateral thermal conduction member 40, where the lateral thermal conduction member 40 is disposed at a lateral portion of the battery cell and is used for transferring heat from the battery cell. Wherein the heat of each cell can be transferred to the lateral heat-conducting member 40 via the lateral portion of the cell. The lateral heat conducting piece can be arranged on the lateral part of the battery cell in a pressing contact mode, and can also be arranged on the lateral part of the battery cell in a close and non-contact mode. So that each cell can dissipate heat through the lateral heat-conducting members 40. In some embodiments, the lateral thermal conductors 40 are capable of transferring heat from each cell, thereby acting as a heat spreader, such that the heat from each cell is substantially the same.

The side portion 211 of each of the battery cells 21 forms a heat dissipation region, and heat of each of the battery cells 21 can be dissipated from the side portion 211 of the battery cell 21.

The case 10 may include an end case 11 opposite to the first and

second heat insulators

31 and 32, and a side heat dissipation case 12 opposite to a side of the battery cell 21. The side heat dissipation case 12 may be integrally injection-molded with the end case 11, or the side heat dissipation case 12 may be bonded to the end case 11.

The material of the end shell 11 and the material of the side heat dissipation shell 12 may be the same or different, and when the material of the end shell 11 and the material of the side heat dissipation shell 12 are the same, the housing 10 may be integrally made of a heat conductive plastic or metal, or an assembly of plastic and metal. In this embodiment, it is preferable that the end shell 11 is made of a different material from the side heat dissipation shell 12, the end shell 11 can be made of a heat insulating material, and the side heat dissipation shell 12 can be made of a heat conductive material, such as a heat conductive plastic part, a heat conductive metal part, or an assembly of plastic and metal, so that the heat of the electric core assembly 20 is dissipated only through the side heat dissipation shell 12, and the heat of the side heat dissipation shell 12 is not transferred to the end shell 11. In one embodiment, the end shell 11 is made of plastic material such as PC (polycarbonate), ABS (acrylonitrile butadiene styrene), PA (polyamide, commonly known as nylon), etc., and the side heat dissipation shell 12 is made of aluminum or copper sheet or steel sheet, which can be injection molded or adhered to the end shell 11.

In some embodiments, the side heat dissipation case 12 may be made of plastic embedded with metal sheets or metal casing to increase the contact of the heat conductive silicone grease with the side of the battery cell, so as to effectively conduct heat from the inside of the battery cell to the battery case 10.

As shown in fig. 1, a plurality of ribs 121 may be disposed on the outer surface of the side heat dissipation shell 12, and the plurality of ribs 121 may enclose a plurality of heat dissipation air ducts X. The air flows through the heat dissipation passage X, and takes away the heat of the side heat dissipation case 12. The convex ribs 121 can be heat-insulating plastic pieces, and the plurality of convex ribs 121 are arranged on the outer surface of the lateral heat dissipation shell 12, so that the situation that a user directly contacts the lateral heat dissipation shell 12 with high temperature can be effectively avoided, and the use safety is improved.

In some embodiments, the first and second

thermal insulators

31 and 32 may be fixed to the outer surface of the battery cell 21. In other embodiments, the first and

second heat insulators

31 and 32 may be fixed to inner sidewalls of the case 10. The first insulating member 31 can completely shield the first end 201 of the electric core set 20, and the second insulating member 32 can completely shield the second end 202 of the electric core set 20, so that the heat of the electric core set 20 can not be dissipated from the first end 201 and the second end 202.

The first and

second heat insulators

31 and 32 may have a plate shape, and the first and

second heat insulators

31 and 32 may include a plastic member or a rubber member. More specifically, the first heat insulator 31 and the second heat insulator 32 may be made of plastic materials such as epoxy resin, PC (polycarbonate), and the like, or may be made of cushion rubber having poor heat conductivity and high temperature resistance.

Preferably, the first heat insulation member 31 is attached to the first end 201 of the electric core assembly 20; and/or, the second thermal insulation member 32 is attached to the second end 202 of the electric core assembly 20. So that there is no gap between the first end 201 of the electric core set 20 and the first insulating member 31, there is no gap between the second end 202 of the electric core set 20 and the second insulating member 32, and the heat of the electric core set 20 does not escape from the gap between the electric core set 20 and the first and second insulating

members

31 and 32, so as to completely block the heat of the electric core set 20 from escaping from the first and second ends 201 and 202 to the outside, and the first insulating member 31 is attached to the first end 201 of the electric core set 20; the second heat insulation piece 32 is attached to the second end 202 of the electric core group 20, so that the compactness of the battery structure can be effectively ensured.

For the battery cells 21 of the battery cell pack 20, each battery cell 21 can dissipate heat through the side portion 211, and the side portion 211 of the battery cell 21 can be provided with a heat conducting member or directly contact with air to form a heat dissipation area. The battery cell 21 located at the middle part can radiate heat to the side part 211, and can also be transmitted to the battery cell 21 adjacent to the battery cell through the laminated surface between the battery cells, and the heat between the battery cells 21 is transmitted in the laminated battery cell 21, but because the first end 201 and the second end 202 of the battery cell group 20 are insulated, the heat of the battery cell 21 can be finally radiated to the outside only through the side part 211, and for each battery cell 21, the heat radiation mode of the battery cell 21 is consistent, thereby ensuring the heat radiation uniformity of each battery cell 21.

The battery that this embodiment provided, the electric core group in the battery has relative first end and the second end that sets up on piling up the direction, and every electric core all dispels the heat through the lateral part, the heat can not distribute to the external world from the first end and the second end of electric core group, and all distribute away through the lateral part of electric core, therefore, to electric core group, can not appear because electric core that first end and second end correspond contacts with the outside air the most, the temperature that leads to the electric core of first end and second end is compared in the lower condition of the temperature of the electric core of inlayer and is taken place, set up the heat insulating part at electric core group both ends, can effectively reduce the weight that both sides electricity core received the influence of external environment temperature, the radiating homogeneity of every electric core has been improved to the at utmost, soaking ability is better, also make the holistic life of battery also improve by a wide margin.

In some embodiments, the battery pack 20 may include a side wall extending in the stacking direction, and the battery thermal management apparatus may further include: lateral heat-conducting members 40. The lateral heat-conducting member 40 is disposed on at least one side wall of the electric core assembly 20. The lateral heat-conducting member 40 is used for conducting heat away from the side portion of the battery cell 21. The lateral heat conducting element 40 may be in contact with or not in contact with the sidewall of the electric core assembly 20, preferably, the lateral heat conducting element 40 is in contact with the sidewall of the electric core assembly 20, and the heat of the electric core assembly 20 is directly transferred to the lateral heat conducting element 40 and then transferred out through the lateral heat conducting element 40. Optionally, a gap is formed between the lateral heat-conducting member 40 and the side wall of the electric core assembly 20, and the heat of the electric core assembly 20 is transferred to the gap between the lateral heat-conducting member 40 and the side wall of the electric core assembly 20, and then is transferred out through the lateral heat-conducting member 40. The outer side wall of the lateral heat-conducting member 40 may also contact the inner side wall of the lateral heat-dissipating case 12 to transfer heat to the outside of the battery case most efficiently, thereby achieving rapid heat dissipation.

The lateral thermal-conduction member 40 may be made of a material with better thermal conductivity, for example, the material of the lateral thermal-conduction member 40 may include at least one of the following: aluminum foil, copper foil, graphite flakes. The lateral thermal conductor 40 may also be an aluminum alloy, a copper alloy, or a carbon nanomaterial in some embodiments.

Specifically, as shown in fig. 1, the side portions of the respective battery cells 21 may be flush to form the side walls of the battery cell pack 20. The structural shape of each cell 21 may be the same, with each cell 21 being stacked in opposite directions such that the side portions of each cell 21 flush form the side walls of the cell pack 20. Each battery cell 21 has the same structural shape, and all radiates through the side part, so that each side part of the battery cell 21 has an even radiating effect.

Preferably, the lateral heat-conducting members 40 can be disposed on at least two opposite sidewalls of the electric core assembly 20 to conduct heat of the electric core assembly 20. The lateral heat conducting members 40 are disposed on two opposite sidewalls of the electric core assembly 20, or the lateral heat conducting members 40 are disposed on four sidewalls of the electric core assembly 20, and more preferably, the lateral heat conducting members 40 of the electric core assembly 20 are symmetrically disposed, so as to further ensure that each electric core 21 in the electric core assembly 20 can uniformly dissipate heat.

In a specific embodiment, as shown in fig. 2, the lateral heat-conducting members 40 may include vertical arms 41 and horizontal arms 42, and the vertical arms 41 of the two lateral heat-conducting members 40 may be respectively shielded from two opposite side walls of the electric core pack 20. The cross arms 42 of the two lateral heat-conducting members 40 are mutually erected at the first end 201 of the electric core group 20, and the cross arms 42 are positioned at the outer side of the first heat-insulating member 31; alternatively, the cross arms 42 of the two lateral heat conducting members 40 are mutually erected on the second end 202 of the electric core assembly 20, and the cross arms 42 are positioned outside the second heat insulating member 32. The vertical arm 41 and the cross arm 42 of the lateral heat conducting member 40 form an L shape, and the two cross arms 42 are mutually erected at the first end 201 or the second end 202 of the electric core group 20. The two cross arms 42 may be overlapped and bonded together to firmly connect and fix the two lateral heat-conducting members 40.

In some embodiments, when the two cross arms 42 are erected at the first end 201 of the electric core assembly 20, the first heat insulation member 31 of the electric core assembly 20 can be adhered with the cross arms 42, and the two cross arms 42 can be positioned at the outer side of the first heat insulation member 31; when the two cross arms 42 are erected at the second end 202 of the electric core pack 20, the second insulator 32 of the electric core pack 20 can be adhered to the cross arms 42, and the two cross arms 42 can be positioned outside the second insulator 32. It is understood that the cross arm 42 of the lateral heat-conducting member 40 cannot transmit the temperature of the battery cell 21 to the cross arm 42 due to the heat insulating function of the first heat-insulating member 31 or the second heat-insulating member 32, and the cross arm 42 only serves to facilitate the installation of the lateral heat-conducting member 40.

Of course, in other embodiments, the lateral arms 41 of the lateral heat-conducting member 40 may be located inside the first heat-insulating member 31 or the second heat-insulating member 32, so long as the first heat-insulating member 31 and the second heat-insulating member 32 are present, so as to prevent heat from being radiated from the first end 201 and the second end 202 in the stacking direction of the battery cells 21.

The thickness of the lateral heat-conducting member 40 may be designed according to practical situations, and preferably, the thickness of the lateral heat-conducting member 40 may be 0.1mm to 0.5 mm. For example, the lateral thermal conduction members 40 have a thickness of 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5 mm.

In some embodiments, the number of the lateral heat-conducting members 40 can be one, or more, and the shape of the lateral heat-conducting members 40 is not limited, for example, one or more lateral heat-conducting members 40 are wound around the side wall of the electric core assembly 20.

The number of the electric cells 21 in the electric cell group 20 is not limited, and the arrangement is not limited to one, for example, the following arrangement may be specifically provided:

in some embodiments, the cell pack 20 is composed of a plurality of cell unit groups S1. The cell unit group S1 refers to a single cell.

In some embodiments, the cell set 20 is composed of the cell binary set S2. The cell double-body group S2 refers to a cell group consisting of two cells.

In some embodiments, the cell set 20 is composed of a cell unit set S1 and a cell binary set S2, and the arrangement of the cell unit set S1 and the cell binary set S2 is not limited.

In the embodiment of the present invention, preferably, the electric core assembly 20 includes: at least one cell monomer group S1 and at least one cell binary group S2; the cell binary group S2 includes two cells 21 arranged in a stack. As shown in fig. 1 and 2, the cell pack 20 includes a top-most cell monomer set S1, a bottom-most cell monomer set S2, and a middle cell binary set S2.

The skilled person can select any arrangement as required, and the present invention is not limited.

In some embodiments, the battery thermal management apparatus further comprises: a heating member 33. The heating member 33 may be provided in the cell group 20, and at least one of two lamination surfaces of each cell 21 is in contact with the heating member 33 in the lamination direction. As shown in fig. 2 and 3, the heating member 33 may be wound in the electric core assembly 20 in a sheet form, and the heating member 33 may be a flexible body or a foldable rigid body, thereby facilitating the winding of the heating member 33 in the electric core assembly 20, so that at least one of the two lamination surfaces of each electric core 21 is in contact with the heating member 33, and the heating member 33 may heat each electric core 21 to implement a low-temperature heating function. And heating member 33 sets up in electric core group 20 with winding mode, can carry out even heating to electric core 21, further improves the soaking effect of battery.

The heating member 33 is attached to at least one lamination surface of the battery cell 21, and the heating member 33 may be attached to and bonded to the at least one lamination surface of the battery cell 21 through a heat conductive resin. The lateral heat-conducting member 40 may be attached to the heating member 33, and the inner side surface of the lateral heat-conducting member 40 may be attached to the outer side wall of the heating member 33 by a heat-conducting resin. The heat of heating member 33 can be to electric core 21 heating, and electric core 21's heat can evenly distribute away through side direction heat-conducting member 40, so, heating member 33 and heat conduction silicone grease are passed through on a plurality of electric core 21's surface, side direction heat-conducting member 40's connection forms the closed loop, can transmit the heat that electric core 21 produced in the heat return circuit, with the inside heat-conduction of electric core 21 to the surface of battery on, good heat dissipation and soaking purpose have been reached, thereby effective control temperature rise and difference in temperature, and service life of the battery is prolonged.

In some embodiments, as shown in fig. 3, the heating member 33 may include a first heat conduction layer 331, an intermediate heating layer 332, and a second heat conduction layer 333, which are stacked, and the electric core 21 is in contact with the first heat conduction layer 331 or the second heat conduction layer 332. The heating layer 332 may include a heating line, for example, the intermediate heating layer 332 is a heating line layer formed by a plurality of heating wires, the intermediate heating layer 332 may include a heating line, the heating line is connected to the connector 50 through a wire, the connector 50 is used for being connected to a power supply, the connection relationship with the power supply is cut off or switched on by the connector 50, the heating function of the battery may be turned on or off, the heating function may be turned on when the external temperature is too low, and the heating function may be turned off when the temperature is high. The battery thermal management apparatus may further include an overcurrent protection device 60, which may include a fuse, an overcurrent release. The heating circuit is connected with the overcurrent protection device 70 through a lead, and by adding the overcurrent protection function, when the system current exceeds a preset value, the power supply can be automatically cut off, so that the use safety of the whole battery can be effectively improved, and the service life of the battery is prolonged.

The heating layer 332 is clamped between the first heat conduction layer 331 and the second heat conduction layer 333, the heating layer 332 generates heat, and the heat is transferred to the electric core 21 through the heat conduction layers, so that the problem that the heat conduction effect of the core layer is poor under the non-heating performance is effectively solved.

Specifically, the first heat conductive layer 331 includes at least one of: an aluminum foil layer, a copper foil layer and a graphite layer; and/or the second thermally conductive layer 333 comprises at least one of: aluminum foil layer, copper foil layer, graphite layer. Preferably, the materials of the first heat conducting layer 331 and the second heat conducting layer 333 may be the same, so that the heating effect of the heating member 33 on the electric cores 21 is the same no matter whether the electric cores 21 are in contact with the first heat conducting layer 331 or the second heat conducting layer 333, thereby ensuring that each electric core 21 is uniformly heated.

The thickness of the first heat conduction layer 331 may be 0.05mm to 0.2 mm. Those skilled in the art can design the thickness of the first heat conducting layer 331 to be 0.05mm, 0.1mm, 0.15mm, 0.2 mm. The thickness of the second heat conduction layer 333 may be 0.05mm to 0.2 mm. Also, for example, the thickness of the second heat conductive layer 333 may be 0.05mm, 0.1mm, 0.15mm, 0.2 mm. The thicknesses of the first heat conducting layer 331 and the second heat conducting layer 333 may be the same, and when the materials of the first heat conducting layer 331 and the second heat conducting layer 333 are also the same, even heating of the battery cell 21 can be ensured no matter whether the first heat conducting layer 331 or the second heat conducting layer 333 contacts the battery cell 21.

The battery of this embodiment, through the notion that battery thermal manager device set up outer way heat conduction closed loop, realize possessing the heat dissipation in less space, soaking and low temperature heating's between electric core 21 function, compact structure, light in weight, small, the cost is lower.

It should be noted that, as shown in fig. 4, when the arrangement of the battery cells 21 is different, the winding form of the heating member 33 is also different. When the cell binary group S2 and the cell monomer group S1 are disposed adjacent to each other, the heating element 33 is at least wound between the cell binary group S2 and the cell monomer group S1.

The cell binary groups S2 include at least two cell binary groups S2, and if there are at least two cell binary groups S2 arranged adjacently, the heating element 33 is wound at least between two adjacent cell binary groups S2.

If at least two cell unit groups S1 are adjacently disposed, the heating element 33 is wound at least between two adjacent cell unit groups S1.

Thus, each battery cell 21 is ensured to be capable of being in contact with the heating member 33, and the heating member 33 is capable of heating the battery cells 21. More preferably, two laminated surfaces of each electric core 21 are in contact with the heating member 33, or only one laminated surface of each electric core 21 is in contact with the heating member 33, so that the heating area of the heating member 33 to each electric core 21 is equal, and the soaking effect of the electric core 21 is effectively improved.

The embodiment of the utility model provides a battery, the special mode of piling up of electric core 21, every electric core 21 all ensure have one side can with add the contact of heat-insulating material 33, realized that one adds heat-insulating material 33 and can carry out the function that heats to all electric cores 21, the cost is lower.

Furthermore, the battery provided by the present invention may further include a buffer dielectric layer 70, and the buffer dielectric layer 70 may be sandwiched between two battery cells 21 in the battery cell double-body set S2. Preferably, the buffer medium layer 70 may also be bonded to the lamination surface of the battery cell 21 by using a heat conductive resin so as to be firmly fixed to the battery cell 21. The buffer medium layers 70 are filled between the battery cores 21 without the heating elements 33, and the buffer medium layers 70 are uniformly distributed, so that expansion of a single battery core in long-term use can be effectively absorbed, the expansion problem in the later cycle of the battery core is fully considered, and the normal function of the heat management system in the whole life cycle of the battery is ensured. With respect to the material selection of the buffer dielectric layer 70, the buffer dielectric layer 70 may include at least one of: a foam layer, a sponge layer and a buffer glue layer. Of course, those skilled in the art can select other materials as the buffer medium layer 70 according to practical situations, and the present invention is not limited thereto.

In some embodiments, a buffer medium layer 70 may be disposed at the first end 201 of the electric core set 20 and outside the first heat insulation member 31; and/or, a buffer medium layer 70 is arranged at the second end 202 of the electric core group 20 and positioned at the outer side of the second heat insulation piece 32. In this way, the expansion of the entire electric core assembly 20 is not transmitted to the case 10, and the safety of the battery is greatly improved.

In some embodiments, a battery thermal management device is provided, as shown in fig. 1-4, the battery has a battery thermal management device therein, the battery thermal management device is applied to a battery core pack 20, the battery core pack 20 includes a plurality of battery cells 21 arranged in a stacked manner, the battery core pack 20 includes a first end 201 and a second end 202 oppositely arranged in a stacking direction (direction shown by arrow in fig. 1), and the battery cells 21 include a side portion 211 extending in the stacking direction. The battery thermal management device includes:

The battery thermal management device includes: a first heat insulation member 31 and a second heat insulation member 32, wherein the first heat insulation member 31 is disposed at the first end 201 of the electric core set 20 to prevent heat from being dissipated from the first end 201 of the electric core set 20, and the second heat insulation member 32 is disposed at the second end 202 of the electric core set 20 to prevent heat from being dissipated from the second end 202 of the electric core set 20. The side portion 211 of each of the battery cells 21 forms a heat dissipation region, and heat of each of the battery cells 21 can be dissipated from the side portion 211 of the battery cell 21.

In some embodiments, the first and second

thermal insulators

second heat insulators

31 and 32 may be fixed to inner sidewalls of a case of the battery. The first insulating member 31 can completely shield the first end 201 of the electric core set 20, and the second insulating member 32 can completely shield the second end 202 of the electric core set 20, so that the heat of the electric core set 20 can not be dissipated from the first end 201 and the second end 202.

Preferably, the first heat insulation member 31 is attached to the first end 201 of the electric core assembly 20; and/or, the second thermal insulation member 32 is attached to the second end 202 of the electric core assembly 20.

In some embodiments, the battery pack 20 may include a side wall extending in the stacking direction, and the battery thermal management apparatus may further include: lateral heat-conducting members 40. The lateral heat-conducting member 40 is disposed on at least one side wall of the electric core assembly 20.

Specifically, as shown in fig. 1, the side portions of the respective battery cells 21 may be flush to form the side walls of the battery cell pack 20.

In a specific embodiment, as shown in fig. 2, the lateral heat-conducting members 40 may include vertical arms 41 and horizontal arms 42, and the vertical arms 41 of the two lateral heat-conducting members 40 may be respectively shielded from two opposite side walls of the electric core pack 20. The cross arms 42 of the two lateral heat-conducting members 40 are mutually erected at the first end 201 of the electric core group 20, and the cross arms 42 are positioned at the outer side of the first heat-insulating member 31; alternatively, the cross arms 42 of the two lateral heat conducting members 40 are mutually erected on the second end 202 of the electric core assembly 20, and the cross arms 42 are positioned outside the second heat insulating member 32.

In some embodiments, the battery thermal management apparatus further comprises: a heating member 33. The heating member 33 may be provided in the cell group 20, and at least one of two lamination surfaces of each cell 21 is in contact with the heating member 33 in the lamination direction. As shown in fig. 2 and 5, the heating member 33 may be wound in a sheet form in the electric core pack 20, and the heating member 33 may be a flexible body or a foldable rigid body.

The heating member 33 is attached to at least one lamination surface of the battery cell 21, and the heating member 33 may be attached to and bonded to the at least one lamination surface of the battery cell 21 through a heat conductive resin.

In some embodiments, the heating element 33 may include a first heat conducting layer 331, an intermediate heating layer 332, and a second heat conducting layer 333, which are arranged in a stacked manner, and the electric core 21 is in contact with the first heat conducting layer 331 or the second heat conducting layer 332. The heating layer 332 may include a heating line, for example, the intermediate heating layer 332 is a heating line layer formed by a plurality of heating wires, the intermediate heating layer 332 may include a heating line, the heating line is connected to the connector 50 through a wire, the connector 50 is used for being connected to a power supply, the connection relationship with the power supply is cut off or switched on by the connector 50, the heating function of the battery may be turned on or off, the heating function may be turned on when the external temperature is too low, and the heating function may be turned off when the temperature is high. The battery thermal management apparatus may also include an overcurrent protection device 60.

Specifically, the first heat conductive layer 331 includes at least one of: an aluminum foil layer, a copper foil layer and a graphite layer; and/or the second thermally conductive layer 333 comprises at least one of: aluminum foil layer, copper foil layer, graphite layer.

The thickness of the first heat conduction layer 331 may be 0.05mm to 0.2 mm. Those skilled in the art can design the thickness of the first heat conducting layer 331 to be 0.05mm, 0.1mm, 0.15mm, 0.2 mm. The thickness of the second heat conduction layer 333 may be 0.05mm to 0.2 mm. Also, for example, the thickness of the second heat conductive layer 333 may be 0.05mm, 0.1mm, 0.15mm, 0.2 mm.

Furthermore, the battery thermal management device provided by the present invention may further include a buffer dielectric layer 70, and the buffer dielectric layer 70 may be sandwiched between two battery cells 21 in the battery cell double-body set S2. With respect to the material selection of the buffer dielectric layer 70, the buffer dielectric layer 70 may include at least one of: a foam layer, a sponge layer and a buffer glue layer.

On the premise of no conflict, other specific structures and specific functions of the battery thermal management device provided in this embodiment are the same as those of the battery thermal management device in the embodiment related to the battery, and specific reference may be specifically made to the description of the embodiment, which is not described herein again.

Fig. 6 is a schematic structural diagram of a movable platform according to an embodiment of the present invention. In some embodiments, a movable platform is also provided, and the movable platform of the embodiment comprises an unmanned aerial vehicle, an electric control toy car and the like. As shown in fig. 6, the movable platform of the present embodiment includes a machine body 100 and a battery 200, the machine body 100 has a receiving cavity for receiving the battery 200, wherein, as shown in fig. 1 to 5, the battery pack 20 includes a plurality of battery cells 21 arranged in a stacked manner, the battery cell pack 20 includes a first end 201 and a second end 202 oppositely arranged in a stacking direction (direction shown by arrow in fig. 1), and the battery cells 21 include a side portion 211 extending in the stacking direction.

A plurality of battery cells 21 are stacked to form a battery pack 20, and a battery thermal management device and the battery pack 20 are accommodated in the cavity of the casing 10. In addition, the shape of the internal cavity of the casing 10 may match the shape of the battery cell group 20 to stably maintain the respective battery cells 21 in the internal cavity of the casing 10.

The case 10 may include an end case 11 opposite to the first and

second heat insulators

In this embodiment, the extending direction of the heat dissipation air duct X may coincide with the front-rear direction of the movable platform (the direction indicated by the arrow in fig. 6). Therefore, when the movable platform moves (for example, when the unmanned aerial vehicle flies), the heat in the battery heat management device can be effectively conducted to the outer surface of the battery, and the heat dissipation efficiency of the battery is greatly improved by means of heat convection formed by the external environment of the unmanned aerial vehicle and the flying.

In some embodiments, the first and second

thermal insulators

second heat insulators

In some embodiments, the battery pack 20 may include a side wall extending in the stacking direction, and the battery thermal management apparatus may further include: lateral heat-conducting members 40. The lateral heat-conducting member 40 is disposed on at least one side wall of the electric core assembly 20. Lateral heat-conducting member 40 has connected heating member 33, first heat-insulating member 31 and second heat-insulating member 32 together, has realized whole soaking, and compact and do not have special fixed to electric core position on the volume, can satisfy the later stage inflation of electric core.

The thickness of the lateral heat-conducting member 40 may be designed according to practical situations, and preferably, the thickness of the lateral heat-conducting member 40 may be 0.1mm to 0.5 mm. For example, the lateral thermal conduction members 40 have a thickness of 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5 mm. The number of the electric cells 21 in the electric cell group 20 is not limited, and the arrangement is not limited to one, for example, the following arrangement may be specifically provided:

In some embodiments, as shown in fig. 3, the heating member 33 may include a first heat conduction layer 331, an intermediate heating layer 332, and a second heat conduction layer 333, which are stacked, and the electric core 21 is in contact with the first heat conduction layer 331 or the second heat conduction layer 332. The heating layer 332 may include a heating line, for example, the intermediate heating layer 332 is a heating line layer formed by a plurality of heating wires, the intermediate heating layer 332 may include a heating line, the heating line is connected to the connector 50 through a wire, the connector 50 is used for being connected to a power supply, the connection relationship with the power supply is cut off or switched on by the connector 50, the heating function of the battery may be turned on or off, the heating function may be turned on when the external temperature is too low, and the heating function may be turned off when the temperature is high. The battery thermal management apparatus may also include an overcurrent protection device 60.

Furthermore, the battery thermal management device provided by the present invention may further include a buffer dielectric layer 70, and the buffer dielectric layer 70 may be sandwiched between two battery cells 21 in the battery cell double-body set S2. With respect to the material selection of the buffer dielectric layer 70, the buffer dielectric layer 70 may include at least one of: a foam layer, a sponge layer and a buffer glue layer. The buffer layer is made of flexible materials, can be better combined with a plurality of battery cell main bodies, is more freely folded, and can absorb the expansion generated at the end of the service life of the battery cell.

In some embodiments, a buffer medium layer 70 may be disposed at the first end 201 of the electric core set 20 and outside the first heat insulation member 31; and/or, a buffer medium layer 70 is arranged at the second end 202 of the electric core group 20 and positioned at the outer side of the second heat insulation piece 32. In this way, the expansion of the entire electric core assembly 20 is not transmitted to the case 10, and the safety of the battery is greatly improved. On the premise of no conflict, other specific structures and specific functions of the battery thermal management device in the movable platform provided in this embodiment are the same as those of the battery thermal management device provided in the above embodiment, and specific reference may be specifically made to the description of the above embodiment, which is not described herein again.

In the several embodiments provided in the present invention, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A battery, comprising: casing, electric core group and battery thermal management device, wherein, the electric core group includes a plurality of electric cores of range upon range of arrangement, the electric core group includes relative first end and the second end that sets up in range upon range of direction, the electric core includes along the lateral part that range upon range of direction extends, battery thermal management device includes:

the first heat insulation piece is arranged at the first end of the electric core group so as to prevent heat from being radiated from the first end of the electric core group; the second heat insulation piece is arranged at the second end of the electric core group so as to prevent heat from being radiated from the second end of the electric core group; and the number of the first and second groups,

the lateral heat conducting piece is arranged on the lateral part of the battery cell and used for transferring the heat of the battery cell;

wherein heat from each of the cells is transferable to the lateral thermally conductive members via the lateral portions of the cells.

2. The battery of claim 1, wherein the first thermal insulator is attached to the first end of the battery pack; and/or the second heat insulation piece is attached to the second end of the electric core group.

3. The battery according to claim 1, wherein the cell pack includes a side wall extending in the stacking direction, and the lateral heat-conducting member is provided to at least one side wall of the cell pack.

4. The battery of claim 3, wherein the sides of each of the cells are flush to form the sidewalls of the pack.

5. The battery according to claim 4,

6. The battery according to claim 5, wherein the lateral heat-conducting members comprise vertical arms and horizontal arms, and the vertical arms of the two lateral heat-conducting members are respectively shielded from two opposite side walls of the battery pack;

7. The battery of claim 6 wherein two said cross arms are bonded to each other.

8. The battery of claim 3, wherein the lateral thermal conductor comprises at least one of: aluminum foil, copper foil, graphite flakes.

9. The battery of claim 3, wherein the lateral thermal conductor member has a thickness of 0.1mm to 0.5 mm.

10. The battery of claim 3, further comprising:

11. The battery of claim 10, wherein the heating element is bonded to at least one lamination surface of the electrical core.

12. The battery of claim 10, wherein the lateral thermal conductor member is attached to the heating element.

13. The battery of claim 12, wherein the lateral thermal conductor member and the heating member are bonded by a thermally conductive resin.

14. The battery of claim 10, wherein the heating element is a flexible body or a foldable rigid body.

15. The battery of claim 10, wherein the heating element comprises a first heat conducting layer, an intermediate heating layer, and a second heat conducting layer arranged in a stack, and the electric core is in contact with the first heat conducting layer or the second heat conducting layer.

16. The battery of claim 15, wherein the first thermally conductive layer comprises at least one of: an aluminum foil layer, a copper foil layer and a graphite layer;

17. The battery of claim 16, wherein the first thermally conductive layer and the second thermally conductive layer are the same material.

18. The battery of claim 15, wherein the first thermally conductive layer has a thickness of 0.05mm to 0.2 mm; and/or the thickness of the second heat conduction layer is 0.05 mm-0.2 mm.

19. The battery of claim 15, wherein the intermediate heating layer comprises a heating line connected by a wire to a connector for connection to a power source.

20. The battery of claim 19, further comprising an over-current protection device, wherein the heater circuit is connected to the over-current protection device by a wire.

21. The battery of claim 10, wherein the battery pack comprises: at least one battery cell double-body group and at least one battery cell single-body group; the cell binary group comprises two cells which are arranged in a stacked mode.

22. The battery of claim 21, wherein the cell binary set is disposed adjacent to the cell single set, and the heating element is wound at least between the cell binary set and the cell single set.

23. The battery of claim 21,

the cell double-body group comprises at least two cell double-body groups which are arranged adjacently, and the heating element is at least wound between the two adjacent cell double-body groups.

24. The battery of claim 21, wherein at least two of the cell groups are adjacent to each other, and the heating element is wound at least between two adjacent cell groups.

25. The battery according to any one of claims 21 to 24, further comprising: and the buffer medium layer is clamped between two electric cores in the electric core double-body group.

26. The battery of claim 25, wherein a buffer medium layer is disposed at the first end of the electric core pack and outside the first thermal insulation member; and/or a buffer medium layer is arranged at the second end of the electric core group and positioned at the outer side of the second heat insulation piece.

27. The battery of claim 26, wherein the buffer dielectric layer comprises at least one of: a foam layer, a sponge layer and a buffer glue layer.

28. The battery of claim 1, wherein the first and second thermal insulators comprise a plastic or rubber component.

29. The battery of claim 1, wherein the housing comprises an end shell opposite the first and second thermal insulators, and a side heat sink shell opposite a side of the cell.

30. The battery of claim 29, wherein a plurality of ribs are formed on the outer surface of the side heat-dissipating casing, and the plurality of ribs define a plurality of heat-dissipating air channels.

31. The battery of claim 1, wherein the side heat dissipation case comprises at least one of: plastic part, metal part, plastic and metal assembly.

32. The battery of claim 3, wherein an outer sidewall of the lateral thermal conductor is in contact with an inner sidewall of the side heat sink casing.

33. The battery of claim 30, wherein the rib is a thermally insulating plastic.

34. The battery of claim 29, wherein the side heat-dissipating housing is integrally injection-molded with the end housing, or wherein the side heat-dissipating housing is bonded to the end housing.

35. The battery thermal management device is characterized by being applied to a cell group, wherein the cell group comprises a plurality of cells which are arranged in a stacked mode; the battery cell group includes first end and second end that sets up in the range upon range of orientation relative, the battery cell includes along the lateral part that range upon range of orientation extends, the device includes:

the lateral heat conducting piece is arranged on the lateral part of the battery cell and used for transferring the heat of the battery cell; so that the heat of each battery cell can be transferred to the lateral heat-conducting piece through the lateral part of the battery cell.

36. The battery thermal management apparatus of claim 35, wherein the first thermal insulator is attached to the first end of the battery pack; and/or the second heat insulation piece is attached to the second end of the electric core group.

37. The battery thermal management apparatus of claim 35, wherein the battery pack comprises side walls extending in the stacking direction, the apparatus further comprising: and the lateral heat conducting piece is arranged on at least one side wall of the electric core group.

38. The battery thermal management apparatus of claim 37, wherein the sides of each of the cells are flush to form the sidewalls of the pack.

39. The battery thermal management apparatus of claim 38,

40. The battery thermal management device according to claim 39, wherein the lateral thermal conductors comprise vertical arms and horizontal arms, the vertical arms of the two lateral thermal conductors are respectively shielded from two opposite side walls of the battery cell pack;

41. The battery thermal management apparatus of claim 40, wherein two of said cross arms are bonded to each other.

42. The battery thermal management apparatus of claim 37, wherein the lateral thermal conduction member comprises at least one of: aluminum foil, copper foil, graphite flakes.

43. The battery thermal management apparatus of claim 37, wherein the lateral thermal-conductive members have a thickness of 0.1mm to 0.5 mm.

44. The battery thermal management apparatus of claim 37, further comprising:

45. The battery thermal management apparatus of claim 44, wherein the heating element is conformable to at least one lamination surface of the electrical core.

46. The battery thermal management apparatus of claim 44, wherein the lateral thermal-conductive member is in engagement with the heating element.

47. The battery thermal management apparatus of claim 46, wherein the lateral thermal-conductive member and the heating member are bonded by a thermally conductive resin.

48. The battery thermal management apparatus of claim 44, wherein the heating element is a flexible body or a collapsible rigid body.

49. The battery thermal management device according to claim 44, wherein the heating element comprises a first thermally conductive layer, an intermediate heating layer, and a second thermally conductive layer arranged in a stack, and the electrical core is in contact with the first thermally conductive layer or the second thermally conductive layer.

50. The battery thermal management device of claim 49, wherein the first thermally conductive layer comprises at least one of: an aluminum foil layer, a copper foil layer and a graphite layer;

51. The battery thermal management device of claim 50, wherein the first thermally conductive layer and the second thermally conductive layer are the same material.

52. The battery thermal management device according to claim 49, wherein the first thermally conductive layer has a thickness of 0.05mm to 0.2 mm; and/or the thickness of the second heat conduction layer is 0.05 mm-0.2 mm.

53. The battery thermal management device of claim 49, wherein the intermediate heating layer comprises a heating line that is wired to a connector for connection to a power source.

54. The battery thermal management apparatus of claim 53, further comprising an over-current protection device, wherein the heater circuit is wired to the over-current protection device.

55. The battery thermal management apparatus of claim 44, wherein the battery pack comprises: at least one battery cell double-body group and at least one battery cell single-body group; the cell binary group comprises two cells which are arranged in a stacked mode.

56. The battery thermal management device of claim 55, wherein the cell binary set is disposed adjacent to the cell single set, and the heating element is wound at least between the cell binary set and the cell single set.

57. The battery thermal management device according to claim 55, wherein the cell binary sets comprise at least two cell binary sets, at least two of the cell binary sets are disposed adjacent to each other, and the heating element is wound at least between two adjacent cell binary sets.

58. The battery thermal management device of claim 55, wherein at least two cell groups are disposed adjacent to each other, and the heating element is wound at least between two adjacent cell groups.

59. The battery thermal management device according to any of claims 55 to 58, further comprising:

60. The battery thermal management device according to claim 59, wherein a layer of buffer media is provided at the first end of the battery pack and outside the first thermal insulator; and/or a buffer medium layer is arranged at the second end of the electric core group and positioned at the outer side of the second heat insulation piece.

61. The battery thermal management device of claim 60, wherein the buffer dielectric layer comprises at least one of: a foam layer, a sponge layer and a buffer glue layer.

62. The battery thermal management apparatus of claim 35, wherein the first and second thermal insulators comprise a plastic or rubber component.

63. A movable platform, comprising a machine body and a battery, wherein the machine body is provided with a containing cavity for containing the battery, the battery comprises a shell, a core pack and a battery thermal management device, the core pack comprises a plurality of electric cores arranged in a stacked mode, the core pack comprises a first end and a second end which are oppositely arranged in the stacked direction, the electric cores comprise side portions extending along the stacked direction, and the battery thermal management device comprises:

wherein heat from each of the cells is transferable to the lateral thermal conductors via the lateral portions of the cells.

64. The movable platform of claim 63, wherein the first thermal shield is attached to the first end of the set of electrical cores; and/or the second heat insulation piece is attached to the second end of the electric core group.

65. The movable platform of claim 63, wherein the set of electrical cores includes side walls extending in the stacking direction, the apparatus further comprising: and the lateral heat conducting piece is arranged on at least one side wall of the electric core group.

66. The movable platform of claim 65, wherein the sides of each cell are flush to form the side walls of the pack of cells.

67. The movable platform of claim 66,

68. The movable platform of claim 67, wherein the lateral thermal conductors comprise vertical arms and horizontal arms, the vertical arms of the two lateral thermal conductors being shielded from two opposite side walls of the battery pack, respectively;

69. The movable platform of claim 68 wherein the two cross arms are bonded to each other.

70. The movable platform of claim 65, wherein the lateral thermal conductor comprises at least one of: aluminum foil, copper foil, graphite flakes.

71. The movable platform of claim 65, wherein the lateral thermal conductors have a thickness of 0.1mm to 0.5 mm.

72. The movable platform of claim 65, further comprising:

73. The movable platform of claim 72, wherein the heating element is conformable to at least one lamination surface of the electrical core.

74. The movable platform of claim 72 wherein the lateral thermal conductors engage the heating elements.

75. The movable platform of claim 74 in which the lateral thermal conductors and the heating elements are bonded by a thermally conductive resin.

76. The movable platform of claim 72 wherein the heating element is a flexible body or a collapsible rigid body.

77. The movable platform of claim 72, wherein the heating element comprises a first heat conducting layer, an intermediate heating layer, and a second heat conducting layer arranged in a stack, and the electrical core is in contact with the first heat conducting layer or the second heat conducting layer.

78. The movable platform of claim 77, wherein the first thermally conductive layer comprises at least one of: an aluminum foil layer, a copper foil layer and a graphite layer;

79. The movable platform of claim 78, wherein the first thermally conductive layer and the second thermally conductive layer are the same material.

80. The movable platform of claim 77, wherein the thickness of the first thermally conductive layer is between 0.05mm and 0.2 mm; and/or the thickness of the second heat conduction layer is 0.05 mm-0.2 mm.

81. The movable platform of claim 77, wherein the intermediate heating layer comprises a heating line connected by a wire to a connector for connection with a power source.

82. The movable platform of claim 81, further comprising an over-current protection device, wherein the heater circuit is connected to the over-current protection device by a wire.

83. The movable platform of claim 72, wherein the battery pack comprises: at least one battery cell double-body group and at least one battery cell single-body group; the cell binary group comprises two cells which are arranged in a stacked mode.

84. The movable platform of claim 83, wherein the cell binary set is disposed adjacent to the cell monomer set, and the heating element is wound at least between the cell binary set and the cell monomer set.

85. The movable platform of claim 83, wherein the cell binary sets comprise at least two cell binary sets, at least two of the cell binary sets are disposed adjacent to each other, and the heating element is wound at least between two adjacent cell binary sets.

86. The movable platform of claim 83, wherein at least two cell groups are adjacently disposed, and the heating element is wound at least between two adjacent cell groups.

87. The movable platform of any one of claims 83-86, further comprising:

88. The movable platform of claim 87, wherein a layer of buffer medium is disposed at the first end of the set of electric cores and outside the first thermal insulator; and/or a buffer medium layer is arranged at the second end of the electric core group and positioned at the outer side of the second heat insulation piece.

89. The movable platform of claim 88, wherein the layer of buffer medium comprises at least one of: a foam layer, a sponge layer and a buffer glue layer.

90. The movable platform of claim 63, wherein the first and second thermal isolators comprise plastic or rubber.

91. The movable platform of claim 63, wherein the housing comprises an end shell opposite the first and second thermal insulators, and a side heat sink shell opposite a side of the cell.

92. The movable platform of claim 91, wherein a plurality of ribs are disposed on an outer surface of the side heat-dissipating shells, the plurality of ribs defining a plurality of heat-dissipating air channels.

93. The movable platform of claim 91, wherein the side heat sinks comprise at least one of: plastic part, metal part, plastic and metal assembly.

94. The movable platform of claim 91, wherein outer sidewalls of the lateral thermal conductors are in contact with inner sidewalls of the side heat sinks.

95. The movable platform of claim 92, wherein the ribs are insulated plastic.

96. The movable platform of claim 91, wherein the heat-dissipating housing is integrally injection molded with the end housing or the side heat-dissipating housing is bonded to the end housing.

97. The movable platform of claim 92, wherein the heat dissipation duct extends in a direction that is coincident with a front-to-back direction of the movable platform.

98. The movable platform of claim 63, wherein the movable platform comprises an unmanned aerial vehicle.