CN216958413U - Battery module and battery package - Google Patents
Battery module and battery package Download PDFInfo
- Publication number
- CN216958413U CN216958413U CN202122956945.9U CN202122956945U CN216958413U CN 216958413 U CN216958413 U CN 216958413U CN 202122956945 U CN202122956945 U CN 202122956945U CN 216958413 U CN216958413 U CN 216958413U
- Authority
- CN
- China
- Prior art keywords
- battery
- cell
- battery module
- battery cell
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 9
- 230000005611 electricity Effects 0.000 description 8
- 238000009792 diffusion process Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 229910001386 lithium phosphate Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- TWQULNDIKKJZPH-UHFFFAOYSA-K trilithium;phosphate Chemical compound [Li+].[Li+].[Li+].[O-]P([O-])([O-])=O TWQULNDIKKJZPH-UHFFFAOYSA-K 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses a battery module and a battery pack, and relates to the technical field of batteries; the battery module comprises a plurality of battery cell modules; each battery cell module comprises a plurality of battery cells which are sequentially connected in series through a connecting row, and the positive pole and the negative pole of each battery cell are positioned on the same side of the battery module; the battery cell modules are sequentially connected in series, and the anode and the cathode after being connected in series are respectively led out from the same end of the battery module through a connecting bar. On one hand, the battery module utilizes the position layout and the connection mode layout of the positive and negative poles of the battery cells, so that lines among the battery cells are arranged on the same side of the battery module, and the line arrangement is simpler and more reasonable; on the other hand, the positive and negative poles of the battery module are led out from the same end, so that when a plurality of battery modules are assembled to form a battery pack, the high-voltage connecting rows connected with the leading-out ends of the battery modules can be intensively arranged in the middle of the battery pack, low-voltage collecting wire harnesses on the peripheral sides of the battery pack are avoided, the reasonability of wiring of the battery pack is improved, and the safety of the battery pack is ensured.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a battery module and a battery pack.
Background
The power lithium ion battery is widely applied to a battery pack system of an electric vehicle due to the high energy density and the low carbon use characteristic of the power lithium ion battery, and the energy of the whole battery pack is huge, so that the practical use time faces the safety examination and challenge. For example, when there are more battery modules in the battery pack, the circuit layout of the battery module assembly is complex, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery module and a battery pack with simple and reasonable circuit arrangement, which can ensure the safety and reliability of charging and discharging operation.
The embodiment of the utility model is realized by the following steps:
in a first aspect, the present invention provides a battery module, including:
a plurality of cell modules; each battery cell module comprises a plurality of battery cells which are sequentially connected in series through a connecting row, and the positive pole and the negative pole of each battery cell are positioned on the same side of the battery module; the battery cell modules are sequentially connected in series, and the anode and the cathode after being connected in series are respectively led out from the same end of the battery module through a connecting bar.
In an optional embodiment, the battery module includes a first cell module and a second cell module, the first cell module includes a plurality of first cells, and the plurality of first cells are sequentially connected in series through a first connection bar, the second cell module includes a plurality of second cells, and the plurality of second cells are sequentially connected in series through a second connection bar;
the first battery cell and the second battery cell are of the same type; or the first battery cell and the second battery cell are different battery cells. In an alternative embodiment, the first cell is a ternary lithium cell, and the second cell is a lithium titanate cell or a lithium iron phosphate cell.
In an alternative embodiment, the plurality of first cells and the plurality of second cells are arranged in a staggered manner, and at least one second cell is arranged between any two adjacent first cells.
In an optional embodiment, a second battery cell is disposed between any two adjacent first battery cells, and the first battery cell and the second battery cell located at the outermost edge of one end of the battery module, which is far away from the positive and negative electrode lead-out positions, are connected in series.
In an alternative embodiment, the energy density of the first cell is higher than the energy density of the second cell, and the thermal stability of the second cell is higher than the thermal stability of the first cell;
the battery cell at the edge of the first end of the battery module is a second battery cell; and/or the battery cell at the edge of the second end of the battery module is a second battery cell; and/or the battery core positioned at the middle part of the battery module is a second battery core. In an alternative embodiment, the battery module has a plurality of sets of first and second connecting rows arranged in a stacked manner between the first end and the second end, and each set of the first and second connecting rows arranged in a stacked manner is arranged at intervals in the height direction of the battery module.
In an optional embodiment, the first connecting row has a first avoidance sinking platform located between two ends, and two opposite ends of the first avoidance sinking platform protrude upwards in a direction away from the battery cell or sink downwards in a direction close to the battery cell; the second connecting row is provided with a second avoidance sinking platform positioned between the two ends, and the two opposite ends of the second avoidance sinking platform are raised towards the direction far away from the electric core or sink towards the direction close to the electric core; and in the first connecting row and the second connecting row which are arranged in a stacked mode in each group, one of the first avoidance sinking platform and the second avoidance sinking platform sinks relative to the battery cell, and the other of the first avoidance sinking platform and the second avoidance sinking platform protrudes relative to the battery cell.
In an optional embodiment, a first insulating layer is arranged on one side, adjacent to the second avoidance sinking platform, of the first avoidance sinking platform;
and/or the presence of a gas in the gas,
and a second insulating layer is arranged on one side of the second avoidance sinking platform, which is adjacent to the first avoidance sinking platform.
In a second aspect, the present invention provides a battery pack, comprising:
a box body;
in the battery module according to any of the foregoing embodiments, the battery module is disposed in the case.
In an optional embodiment, the battery pack comprises a plurality of battery modules, the connection ends of the plurality of battery modules are sequentially connected in series through a plurality of high-voltage connection rows, and the connection end of each battery module is arranged adjacent to the middle position of the box body, so that each high-voltage connection row is arranged adjacent to the middle position of the box body;
every battery module all connects and is provided with the low pressure and gathers the pencil, and every low pressure gathers the pencil and all arranges along battery package's week side.
The embodiment of the utility model has at least the following advantages or beneficial effects:
the embodiment of the utility model provides a battery module, which comprises a plurality of battery cell modules; each battery cell module comprises a plurality of battery cells which are sequentially connected in series through a connecting row, and the positive pole and the negative pole of each battery cell are positioned on the same side of the battery module; the battery cell modules are sequentially connected in series, and the anode and the cathode after being connected in series are respectively led out from the same end of the battery module through a connecting bar. On one hand, the positive and negative poles of all the battery cells are arranged on the same side of the battery module, and the battery cells are divided into a plurality of battery cell modules which are respectively arranged in series and then are sequentially connected in series, so that the lines among the battery cells can be arranged on the same side of the battery module, the line arrangement among the battery cells can be simplified, and the reasonability of the line arrangement of the battery module is ensured; on the other hand, the positive and negative poles after the battery module is arranged are led out from the same end, so that when a plurality of battery modules are assembled to form a battery pack, the high-voltage connecting rows connected with the leading-out ends of the battery modules can be intensively arranged in the middle of the battery pack, so that low-voltage collecting wire harnesses on the peripheral side of the battery pack are avoided, the reasonability of wiring of the battery pack is improved, and the safety and the reliability of the battery pack are ensured.
The embodiment of the utility model also provides a battery pack which comprises the battery module. Therefore, the battery also has the advantages of safety and reliability in charging and discharging.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present invention;
fig. 2 is a schematic partial structural diagram of a battery module according to an embodiment of the present invention;
fig. 3 is a second schematic structural diagram of a first connection row of a battery module according to an embodiment of the utility model;
fig. 4 is a schematic structural diagram of a second connection bank of the battery module according to the embodiment of the utility model;
fig. 5 is a schematic structural diagram of a battery pack according to an embodiment of the present invention.
100-battery module; 101-a first cell module; 103-a second cell module; 105-a first cell; 107-a second cell; 109-a first connecting row; 111-a second connecting row; 113-a first avoidance sinking platform; 115-a second avoidance sinking platform; 117 — a first connection; 121-a second connection; 123-a first end; 125-second end; 127-a third connecting portion; 129-a fourth connecting portion; 200-a battery pack; 201-a box body; 203-high voltage connection bank.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the related art, when the number of battery modules in the battery pack is large, the circuit layout of the battery module assembly is complex, and certain potential safety hazards exist.
In view of this, the embodiment provides a battery pack, on one hand, by arranging positive and negative poles of each battery cell on the same side of the battery module, circuits between the battery cells are all arranged on the same side of the battery module, so that the occupied space is small, and the arrangement is simpler and more reasonable; on the other hand, the positive negative pole of every battery module in this battery package all draws forth from same end to when a plurality of battery module equipment formed the battery package, be convenient for all concentrate the high-pressure connector bar of the link of battery module and arrange in the middle part of battery package, in order to avoid the low pressure collection pencil that is located battery package week side, thereby improve the rationality that the battery package was walked the line, guarantee the security and the reliability of battery package. The structure of the battery module and the battery pack will be described in detail below.
Fig. 1 is a schematic structural diagram of a battery module 100 according to the present embodiment. Referring to fig. 1, the present embodiment provides a battery module 100, which includes a casing (not shown) and a plurality of cell modules disposed in the casing.
In detail, each battery cell module equally comprises a plurality of battery cells connected in series in sequence through a connecting bar, and the positive and negative poles of each battery cell are located on the same side of the battery module 100. Moreover, the plurality of cell modules are sequentially connected in series, and the positive electrode and the negative electrode after being connected in series are respectively led out from the same end of the battery module 100 through a connecting bar. On one hand, the positive and negative poles of all the cells are arranged on the same side of the battery module 100, and the cells are divided into a plurality of cell modules which are respectively arranged in series and then are sequentially connected in series, so that lines among the cells are arranged on the same side of the battery module 100, the occupied space is small, the line arrangement among the cells can be simplified, and the reasonability of the line arrangement of the battery module 100 is ensured; on the other hand, the positive and negative electrodes of the battery modules 100 after arrangement are led out from the same end, so that when a plurality of battery modules 100 are assembled to form a battery pack, the high-voltage connecting rows connected with the leading-out ends of the battery modules 100 can be intensively arranged in the middle of the battery pack to avoid the low-voltage collecting wire harness positioned on the peripheral side of the battery pack, thereby improving the reasonability of the wiring of the battery pack and ensuring the safety and reliability of the battery pack.
As an optional scheme, in this embodiment, the battery module 100 specifically includes two battery cell modules, namely a first battery cell module 101 and a second battery cell module 103, and certainly, in other embodiments, the number of the battery cell modules may also be adjusted according to requirements, for example, the number of the battery cell modules is three, four, and the like, which is not limited in this embodiment. Meanwhile, the first cell module 101 includes a plurality of first cells 105, the plurality of first cells 105 are sequentially connected in series by a first connection bar 109, the second cell module 103 includes a plurality of second cells 107, and the plurality of second cells 107 are sequentially connected in series by a second connection bar 111. The first cell 105 and the second cell 107 may be the same type of cell or different types of cells. For example, in the present embodiment, the first cell 105 and the second cell 107 are different types of cells, the energy density of the first cell 105 is higher than that of the second cell 107, and the thermal stability of the second cell 107 is higher than that of the first cell 105.
On one hand, the positive and negative poles of the first cell 105 and the positive and negative poles of the second cell 107 are both located on the same side of the battery module 100, which facilitates the arrangement of a connection circuit, simplifies the circuit, and ensures the safety and reliability of the circuit; on the other hand, when first electric core 105 and second electric core 107 are the same kind different, can also guarantee the energy density of whole battery module 100 through the energy density of first electric core 105, prevent thermal runaway's diffusion effectively through the thermal stability of second electric core 107 to improve the security of whole battery module 100, thereby fully guarantee the security and the reliability of battery module 100 charge-discharge operation.
In this embodiment, the first cell 105 is a ternary lithium battery cell, and the second cell 107 is a lithium titanate battery cell or a lithium phosphate battery cell. The ternary lithium battery core has higher energy density, can guarantee the performance of battery module 100, and lithium titanate electricity core or lithium phosphate electricity core, the security performance is higher, and cycle life is long, and operating temperature range is also wider than other lithium battery cores, can fill up the relatively poor defect of ternary lithium battery core security performance effectively for whole battery module 100 both has higher energy density, has higher security performance again.
Referring to fig. 1 again, in the present embodiment, a plurality of first battery cells 105 and a plurality of second battery cells 107 are arranged in a staggered manner, and at least one second battery cell 107 is arranged between any two adjacent first battery cells 105. The first battery cells 105 and the second battery cells 107 are arranged in a staggered manner, and the first battery cells 105 are spaced apart by the second battery cells 107, so that when any one of the first battery cells 105 is in thermal runaway, the thermal runaway can be blocked by the adjacent second battery cells 107, and thermal runaway diffusion is effectively prevented, so that the safety and reliability of the whole battery module 100 are fully ensured.
In detail, in this embodiment, the cell located at the outermost edge of the first end 123 of the battery module 100 may be the second cell 107; meanwhile, the cell at the outermost edge of the second end 125 of the battery module 100 may also be the second cell 107. That is, the outermost edge of the entire battery module 100 is set as the second cell 107. On the one hand, because battery module 100's marginal portion appears the thermal runaway easily, set up this position into the diffusion of thermal runaway to both ends can be prevented effectively to second electricity core 107 to can prevent the diffusion of thermal runaway to other modules, can guarantee battery module 100's security and reliability.
As an alternative, the middle-most cell of the battery module 100 may also be set as the second cell 107. Since the middle position is also prone to thermal runaway compared to other positions of the end portion and the middle portion, setting the middle position as the second cell 107 can further ensure the safety and reliability of the battery module 100.
In more detail, as shown in fig. 1, in this embodiment, along a length direction of the battery module 100 (that is, an ab direction of fig. 1), the battery module 100 specifically includes seven battery cells arranged in sequence, and the first battery cell module 101 includes three first battery cells 105, and the second battery cell module 103 includes four second battery cells 107. The four second battery cells 107 are arranged at intervals to form three vacant sites, and the three first battery cells 105 are respectively arranged in the three vacant sites. Through setting up like this for second electricity core 107 is located both ends and middle part position, and second electricity core 107 and first electricity core 105 set up in turn, can prevent thermal runaway diffusion effectively through neighbouring second electricity core 107 when thermal runaway appears in first electricity core 105, thereby fully guarantee battery module 100's security and reliability.
Of course, in other embodiments, the number of the battery cells, the respective numbers of the first battery cells 105 and the second battery cells 107, and the number of the second battery cells 107 between the two first battery cells 105 may also be adjusted according to requirements, which not only can ensure the safety of the battery module 100, but also can ensure the overall energy density of the battery module 100, and the details of the present invention are omitted.
Fig. 2 is a schematic view of a partial structure of the battery module 100 according to the present embodiment. Referring to fig. 1 and fig. 2, in the present embodiment, the first cell 105 and the second cell 107 at the extreme edge of the first end 123 of the battery module 100 are connected in series, that is, the first cell 105 and the second cell 107 at the extreme right end in fig. 1 are connected in series. The portions of the first connecting row 109 and the second connecting row 111 located at the leftmost end of the battery module 100, which are led out from the second end 125, are the connecting ends of the battery module 100, and the connecting ends may be connected to other battery modules 100 or directly connected to electric devices.
By such an arrangement, on one hand, the serial connection of the first cell module 101 and the second cell module 103 is facilitated, the circuit arrangement of a plurality of first cells 105 in the first cell module 101 is facilitated, and the circuit arrangement of a plurality of second cells 107 in the second cell module 103 is also facilitated, so that the circuit arrangement is compact and safe; on the other hand, by such an arrangement, the connection terminals of the battery modules 100 are also located at the second ends 125 of the battery modules 100, thereby facilitating the line arrangement when a plurality of battery modules 100 are used in series or in parallel, and further improving the safety and reliability of the battery modules 100.
In detail, in this embodiment, the first battery cell 105 and the second battery cell 107 have the same size, positive and negative terminals of the first battery cell 105 and the second battery cell 107 are both disposed adjacent to two sides of the battery module 100 in the width direction (i.e., the cd direction in fig. 1), two ends of the first connection row 109 are both connected to the two first battery cells 105, the middle position is bent toward the middle position of the battery module 100 in the width direction, two ends of the second connection row 111 are both connected to the two second battery cells 107, and the middle position is bent toward the middle position of the battery module 100 in the width direction. By the arrangement, the whole first connecting row 109 and the whole second connecting row 111 are both in a U-shaped structure, the circuit layout of the whole connecting row of the battery module 100 is compact and safe, the occupied space is small, and the interference with other battery modules 100 is not easy to occur.
In more detail, the first connecting row 109 and the second connecting row 111 are bent to the same extent toward the middle of the battery module 100, so that there are multiple sets of the first connecting row 109 and the second connecting row 111 arranged in a stacked manner between the first end 123 and the second end 125 of the battery module 100, and each set of the first connecting row 109 and the second connecting row 111 arranged in a stacked manner is arranged at intervals in the height direction (i.e., the ef direction in fig. 1) of the battery module 100. On one hand, the first connecting row 109 and the second connecting row 111 are bent towards the middle of the battery module 100, so that the structure is more compact and reliable; on the other hand, the stacked portions are spaced apart in the height direction, so that the mutual interference between the first connecting row 109 and the second connecting row 111 can be reduced or avoided, and the safety and reliability of the battery module 100 can be ensured.
Fig. 3 is a second schematic structural diagram of the first connecting row 109 of the battery module 100 provided in this embodiment; fig. 4 is a schematic structural diagram of the second connection row 111 of the battery module 100 according to the present embodiment. Referring to fig. 1 to 4, in the present embodiment, the first connection row 109 specifically includes a first connection portion 117, a second connection portion 121, and a first avoidance sinking platform 113, the first connection portion 117 and the second connection portion 121 are respectively connected to the two first battery cells 105, the first avoidance sinking platform 113 is disposed between the first connection portion 117 and the second connection portion 121 in a bending manner, and the first avoidance sinking platform 113 protrudes in a direction away from the first battery cell 105 or sinks in a direction close to the first battery cell 105 compared to the first connection portion 117 and the second connection portion 121.
Similarly, the second connection row 111 specifically includes a third connection portion 127, a fourth connection portion 129, and a second avoidance sinking platform 115, where the third connection portion 127 and the fourth connection portion 129 are respectively connected to the two second battery cells 107, the second avoidance sinking platform 115 is disposed between the third connection portion 127 and the fourth connection portion 129 in a bending manner, and the second avoidance sinking platform 115 protrudes in a direction away from the second battery cell 107 or sinks in a direction close to the second battery cell 107 compared to the third connection portion 127 and the fourth connection portion 129.
Meanwhile, in each group of the first connection row 109 and the second connection row 111 which are arranged in a stacked manner, one of the first avoidance sinking platform 113 and the second avoidance sinking platform 115 sinks relative to the battery cell, and the other of the first avoidance sinking platform 113 and the second avoidance sinking platform 115 protrudes relative to the battery cell, that is, the sinking direction is opposite to the sinking direction, as shown in fig. 1, when the first avoidance sinking platform 113 protrudes in the direction away from the first battery cell 105, the second avoidance sinking platform 115 sinks in the direction close to the second battery cell 107, and when the first avoidance sinking platform 113 sinks in the direction close to the first battery cell 105, the second avoidance sinking platform 115 protrudes in the direction away from the second battery cell 107.
Through setting up first dodging heavy platform 113 and second dodging heavy platform 115 to the direction of sinking opposite for the interval distance of the range upon range of part is bigger for first connecting row 109 and second connecting row 111, thereby can guarantee when compact structure nature, can also further reduce or avoid the mutual interference between first connecting row 109 and the second connecting row 111, with the security that fully improves battery module 100.
Optionally, in this embodiment, a first insulating layer (not shown) is disposed on a side of the first avoiding sinking platform 113 adjacent to the second avoiding sinking platform 115, and a second insulating layer (not shown) is disposed on a side of the second avoiding sinking platform 115 adjacent to the first avoiding sinking platform 113. The first insulating layer and the second insulating layer can be insulating glue layers for pasting or insulating material layers for spraying, and mutual interference between the first connecting row 109 and the second connecting row 111 can be further reduced or avoided through the arrangement of the first insulating layer and the second insulating layer, so that the safety of the battery module 100 is fully ensured.
Fig. 5 is a schematic structural diagram of the battery pack 200 provided in this embodiment. Referring to fig. 5, an embodiment of the utility model further provides a battery pack 200, which includes a case 201 and the battery module 100, wherein the battery module 100 is disposed in the case 201. The battery pack 200 includes the battery module 100, and thus has advantages of safety and reliability in charging and discharging.
Alternatively, referring to fig. 5 again, in the present embodiment, the battery pack 200 includes a plurality of battery modules 100, for example, 12 battery modules 100 shown in fig. 5, 12 battery modules 100 are arranged in a 2-row 6-column array, and 12 battery modules 100 are sequentially connected in series through 11 high-voltage connecting rows 203. Meanwhile, since the connection end of each battery module 100 is located at the second end 125, it is convenient to dispose the connection end of each battery module 100 adjacent to the middle position of the case 201 such that the high-voltage connection rows 203 are disposed adjacent to the middle position of the case 201. Meanwhile, each battery module 100 is connected with a low-voltage acquisition wire harness, and each low-voltage acquisition wire harness is arranged along the peripheral side of the battery pack 200, so as to acquire the voltage and temperature of each battery cell in the corresponding battery module 100, thereby ensuring the safety performance of the battery pack 200.
Position overall arrangement through high-pressure run-on 203 and low pressure collection pencil for the high-pressure run-on of whole battery package 200 all is located the middle part position of battery package 200, the low pressure collection pencil of battery package 200 all is located the week side of battery package 200, can avoid high-pressure run-on and low pressure collection pencil crisscross in battery package 200, thereby can reduce or avoid the electromagnetism that produces when high-pressure run-on transmits strong current to the interference and the influence of low pressure collection pencil, with the security and the reliability of fully guaranteeing battery package 200.
The following describes in detail the mounting process, operation principle and advantageous effects of the battery module 100 and the battery pack 200 according to the present invention, taking the structure of fig. 1 and 5 as an example:
when this battery module 100 carries out the installation operation, establish ties a plurality of first electric cores 105, establish ties a plurality of second electric cores 107 to establish ties first electric core 105 and the second electric core 107 that lie in the most marginal in battery module 100. When this battery package 200 carries out the installation operation, can be two rows of six with 12 battery modules 100 and arrange in box 201, and the link of every battery module 100 all is close to middle part position setting, then loops through high-voltage connection row 203 and establishes ties, makes high-voltage connection row 203 be located battery package 200 middle part, and it can to gather the pencil in the battery package 200 lateral part with the low pressure. After the installation, the battery pack 200 can be used by external electric equipment.
In the above process, on one hand, each battery module 100 included in the battery pack 200 can ensure the energy density of the whole battery module 100 through the arrangement of the first battery cell 105 with higher energy density, and can effectively block the diffusion of thermal runaway through the arrangement of the second battery cell 107 with higher thermal stability, so as to ensure the safety performance of the whole battery module 100, and ensure the safety and reliability of the charging and discharging operation of the whole battery pack 200; on the other hand, this battery package 200 arranges the high-pressure connecting row in the middle part, with low pressure collection pencil arrangement in the lateral part, can reduce or avoid the high-pressure connecting row to the influence of low pressure collection pencil, can also further guarantee battery package 200's security, reliability and stability.
In summary, the embodiment of the utility model provides a battery module 100 and a battery pack 200 that are safe and reliable in charging and discharging.
The present invention has been described in terms of the preferred embodiment, and it is not intended to be limited to the embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A battery module, comprising:
a plurality of cell modules;
each battery cell module comprises a plurality of battery cells which are sequentially connected in series through a connecting row, and the positive pole and the negative pole of each battery cell are positioned on the same side of the battery module;
the battery cell modules are sequentially connected in series, and the anode and the cathode after being connected in series are respectively led out from the same end of the battery module through one connecting row.
2. The battery module according to claim 1, wherein:
the battery module comprises a first battery cell module and a second battery cell module, the first battery cell module comprises a plurality of first battery cells, the first battery cells are sequentially connected in series through a first connecting row, the second battery cell module comprises a plurality of second battery cells, and the second battery cells are sequentially connected in series through a second connecting row;
the first battery cell and the second battery cell are of the same type; or the first battery cell and the second battery cell are different battery cells.
3. The battery module according to claim 2, wherein:
the first battery cell is a ternary lithium battery cell, and the second battery cell is a lithium titanate battery cell or a lithium iron phosphate battery cell.
4. The battery module according to claim 2, wherein:
the plurality of first battery cells and the plurality of second battery cells are arranged in a staggered mode, and at least one second battery cell is arranged between any two adjacent first battery cells.
5. The battery module according to claim 4, wherein:
the second battery cell is uniformly arranged between any two adjacent first battery cells, and the first battery cell and the second battery cell which are positioned at the edge of one end, far away from the leading-out positions of the positive electrode and the negative electrode, of the battery module are connected in series.
6. The battery module according to claim 2, wherein:
the energy density of the first cell is higher than the energy density of the second cell, and the thermal stability of the second cell is higher than the thermal stability of the first cell;
the battery cell at the outermost edge of the first end of the battery module is the second battery cell; and/or the electric core at the most edge of the second end of the battery module is the second electric core; and/or the battery cell positioned at the middle part of the battery module is the second battery cell.
7. The battery module according to any one of claims 2 to 6, wherein:
the first connecting row and the second connecting row are arranged between the first end and the second end of the battery module in a stacked mode, and the first connecting row and the second connecting row are arranged in the height direction of the battery module at intervals.
8. The battery module according to claim 7, wherein:
the first connecting row is provided with a first avoidance sinking platform positioned between two ends, and the two opposite ends of the first avoidance sinking platform are upwards projected in the direction far away from the battery cell or sink in the direction close to the battery cell; the second connecting row is provided with a second avoidance sinking platform positioned between two ends, and two opposite ends of the second avoidance sinking platform are protruded upwards in the direction far away from the electric core or sink downwards in the direction close to the electric core; and in each group of the first connecting row and the second connecting row which are arranged in a stacked manner, one of the first avoidance sinking platform and the second avoidance sinking platform sinks relative to the battery cell, and the other of the first avoidance sinking platform and the second avoidance sinking platform protrudes relative to the battery cell.
9. The battery module according to claim 8, wherein:
a first insulating layer is arranged on one side, adjacent to the second avoidance sinking platform, of the first avoidance sinking platform;
and/or the presence of a gas in the gas,
and a second insulating layer is arranged on one side of the second avoidance sinking platform, which is adjacent to the first avoidance sinking platform.
10. A battery pack, comprising:
a box body;
the battery module according to any one of claims 1 to 9, which is disposed in the case.
11. The battery pack according to claim 10, wherein:
the battery pack comprises a plurality of battery modules, the connecting ends of the battery modules are sequentially connected in series through a plurality of high-voltage connecting rows, and the connecting end of each battery module is arranged close to the middle of the box body, so that each high-voltage connecting row is arranged close to the middle of the box body;
every the battery module all connects and is provided with the low pressure and gathers the pencil, and every the low pressure is gathered the pencil and all is followed week side arrangement of battery package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122956945.9U CN216958413U (en) | 2021-11-29 | 2021-11-29 | Battery module and battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122956945.9U CN216958413U (en) | 2021-11-29 | 2021-11-29 | Battery module and battery package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216958413U true CN216958413U (en) | 2022-07-12 |
Family
ID=82307798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122956945.9U Active CN216958413U (en) | 2021-11-29 | 2021-11-29 | Battery module and battery package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216958413U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115458863A (en) * | 2022-09-15 | 2022-12-09 | 湖北钛时代新能源有限公司 | Square cylindrical battery module |
| WO2024032641A1 (en) * | 2022-08-09 | 2024-02-15 | 天津市捷威动力工业有限公司 | Battery module and battery pack |
-
2021
- 2021-11-29 CN CN202122956945.9U patent/CN216958413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024032641A1 (en) * | 2022-08-09 | 2024-02-15 | 天津市捷威动力工业有限公司 | Battery module and battery pack |
| CN115458863A (en) * | 2022-09-15 | 2022-12-09 | 湖北钛时代新能源有限公司 | Square cylindrical battery module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216958413U (en) | Battery module and battery package | |
| CN211350786U (en) | Battery module | |
| CN208127289U (en) | battery pack, bracket | |
| CN216055079U (en) | Battery core, battery module and electric equipment | |
| CN214254660U (en) | Long electric core group of square shell and battery module and electric automobile | |
| CN212848715U (en) | Electricity core module | |
| CN215731966U (en) | Battery module and battery pack | |
| CN209133574U (en) | Battery pack for electric walker | |
| CN211828986U (en) | Battery box | |
| CN217544711U (en) | Modularization BMS battery protection device | |
| CN112186057B (en) | Parallel-series structure photovoltaic module | |
| CN209929394U (en) | Battery module, battery package and electric automobile | |
| CN212934707U (en) | Voltage and temperature acquisition device of many and many cluster laminate polymer battery module | |
| CN114122411A (en) | Lead-acid storage battery and manufacturing method thereof | |
| CN219873868U (en) | Cell module | |
| KR20210046340A (en) | Battery module | |
| CN218472041U (en) | Battery information acquisition device, battery pack and vehicle | |
| CN218274931U (en) | Battery energy storage system architecture | |
| CN220106817U (en) | Battery pack and power device | |
| CN217719795U (en) | Battery module and battery pack | |
| CN216288714U (en) | Battery cell serial battery | |
| CN214848944U (en) | Busbar structure, electric core module and battery pack | |
| CN215834663U (en) | Battery top cap structure, battery and battery module | |
| CN211045572U (en) | Battery cell tab extraction device | |
| CN217823039U (en) | Battery device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zhengli New Energy Battery Technology Co.,Ltd. Country or region after: China Address before: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee before: Jiangsu Zenergy Battery Technologies Co.,ltd Country or region before: China |