Battery Interconnect System

Abstract

A battery interconnect system incorporating a temperature control mechanism is provided having a first battery cell and a second battery cell. The first battery cell has a positive electrode tab and a negative electrode tab. The second battery cell has a positive electrode tab and a negative electrode tab. The positive electrode tab of the first battery cell mates with the positive electrode tab of the second battery cell. Additionally, the negative electrode tab of the first battery cell mates with the negative electrode tab of the second battery cell. The first battery cell includes a positive electrode electrically coupled with the positive electrode tab of the first battery cell, and the second battery cell includes a positive electrode electrically coupled with the positive electrode tab of the second battery cell. The first battery cell includes a negative electrode electrically coupled with the negative electrode tab of the first battery cell, and the second battery cell includes a negative electrode electrically coupled with the negative electrode tab of the second battery cell.

Description

[Technical field]

[0001] Examples of the present disclosure relate generally to battery cells and, more specifically, but not by way of limitation, to interconnection systems for battery cells. [Background technology]

[0002] Typically, secondary batteries are for loads with high energy requirements. Some examples include vehicles such as automobiles and aviation vehicles. During recharging, the temperature of the battery can be increased to lower the impedance and improve fast charging. Furthermore, the temperature of the battery naturally increases during use, such as flying in aviation applications. However, the increase in the temperature of the battery over time can shorten the life of the battery. Therefore, to extend the life of the battery, it is necessary to cool the battery. [Brief description of the drawings]

[0003] Some of the accompanying drawings merely illustrate exemplary embodiments of the present disclosure and should not be considered as limiting its scope. [Figure 1] FIG. 1 illustrates a battery cell, according to some examples. [Diagram 2] FIG. 2 illustrates the formation of the negative and positive electrodes of the battery cell of FIG. 1, according to some examples. [Diagram 3] FIG. 3 illustrates the formation of the negative and positive electrodes of the battery cell of FIG. 1, according to some examples. [Figure 4] FIG. 4 illustrates the formation of a top seal with an external electrical tab, according to some examples. [Diagram 5] FIG. 5 illustrates the formation of a top seal with an external electrical tab, according to some examples. [Figures 6A-6D] 6A-6D show temperature control mechanisms, according to some examples, where the dashed lines indicate the outline of the periphery of an electrode stack as shown with reference to FIG. 1 on the temperature control mechanism. [Figure 7A-7B]7A and 7B show temperature control mechanisms for the battery cell of FIG. 1, according to some examples. [Figure 8] FIG. 8 illustrates a battery cell, according to some examples. [Figure 9] FIG. 9 illustrates the formation of the negative and positive electrodes of the battery cell of FIG. 8, according to some examples. [Figure 10] FIG. 10 illustrates the formation of the negative and positive electrodes of the battery cell of FIG. 8, according to some examples. [Figure 11] FIG. 11 illustrates the formation of the negative and positive electrodes of the battery cell of FIG. 8, according to some examples. [Figure 12] FIG. 12 illustrates the formation of the negative and positive electrodes of the battery cell of FIG. 8, according to some examples. [Figure 13] FIG. 13 shows an alternative temperature control mechanism. [Figure 14] FIG. 14 illustrates the coupling of multiple battery cells via multiple tabs, according to some examples. [Figure 15] FIG. 15 illustrates the coupling of multiple battery cells via multiple tabs, according to some examples. [Figure 16] FIG. 16 illustrates the coupling of multiple battery cells via multiple tabs, according to some examples. [Figure 17] FIG. 17 illustrates a temperature control mechanism for the battery cell of FIG. 1, according to some examples. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0004] The following description includes systems, methods, techniques, instruction sequences, and computing machine program products embodying exemplary examples of the present disclosure. In the following description, for purposes of explanation, numerous specific details are set forth in order to provide an understanding of various examples of the inventive subject matter. However, it will be apparent to those skilled in the art that examples of the inventive subject matter may be practiced without these specific details. In general, well-known instruction instances, protocols, structures, and techniques are not necessarily shown in detail.

[0005] Examples may relate to lithium ion, lithium metal, or similar secondary battery chemistry. Regardless of the chemistry, the battery may use an aluminum foil-polymer laminate for containment. Additionally, the battery cells according to examples may allow for flexible packaging. Each of the battery cells may be formed with a positive tab and a negative tab extending from each of the battery cells, where the battery cells are electrically coupled to each other via the tabs. In a particular configuration, the battery cells may include four tabs, two of which may be electrically coupled to a positive electrode in the battery cell and two of which may be coupled to a negative electrode in the battery cell to form a positive tab and a negative tab, respectively.

[0006] The multiple battery cells can be coupled in parallel to each other via these tabs. More specifically, the positive tab of the first battery cell can be coupled with the positive tab of the second battery cell. In addition, the negative tab of the first battery cell can be coupled with the negative tab of the second battery cell. When more than two battery cells are coupled in parallel, the positive tab of the second battery cell can be coupled with the positive tab of the third battery cell. Furthermore, the negative tab of the second battery cell can be coupled with the negative tab of the third battery cell.

[0007] Each battery cell can be disposed in a pouch formed of several layers. Thus, the first battery cell can be disposed in a first pouch laminate, the second battery cell can be disposed in a second pouch laminate, and the third battery cell can be disposed in a third pouch laminate. Each of the multiple battery cells, such as the first, second, and third battery cells, can be disposed in the same pouch laminate. In these examples, the negative and positive electrodes formed in each of the battery cells can be formed in a punch through process. Regardless of whether the multiple battery cells are disposed in individual pouch laminates or in the same pouch laminate, the need for bus bars to electrically couple the multiple battery cells can be eliminated by coupling each of the multiple battery cells via the negative and positive tabs as described herein.

[0008] 1, a battery cell 100 including a temperature control mechanism 102 is shown, according to several examples. The battery cell 100 may be a lithium liquid system. As can be seen with reference to FIG. 1, the temperature control mechanism 102 may be formed in a central location 103 of the battery cell 100. The central location 103 within the battery cell 100 allows the temperature control mechanism 102 to provide the advantages discussed above.

[0009] The battery cell 100 may include a plurality of negative electrodes 104 and a plurality of positive electrodes 106 that may function to generate a current to power an external load. In some examples, the negative electrode 104 (also shown in FIG. 2) may include a current collecting portion 108 and an active area 114 that may be formed as a coating on the current collecting portion 108. As can be seen with reference to FIG. 2, the negative electrode 104 may be defined by the current collecting portion 108, and the active area 114 may be formed on the current collecting portion 108. A liquid slurry including the active area 114 may be deposited on the current collecting portion 108, and the resulting structure is subjected to a drying process. The current collecting portion 108 may be formed of any type of conductive material, such as copper, nickel, etc. Furthermore, the active area 114 may be formed of any type of negative electrode material that has a high energy density, high power density, and long cycle life. Some examples may include graphite, and combinations of graphite with Si / C, Si, or Si, etc. The negative electrode 104 may be a sheet of lithium metal, where a metal foil functions as both the active material and the current collector (not shown), or as lithium metal plated onto a current collector.

[0010] The positive electrode 106 may include a current collecting portion 112 and an active area 117 that may be formed as a coating on the current collecting portion 112, as shown more clearly with reference to FIG. 3. Similar to the negative electrode 104, the positive electrode 106 may be defined by the current collecting portion 112, and the active area 117 may be formed on the current collecting portion 112. A liquid slurry having the active area 117 may be deposited on the current collecting portion 112, and the resulting structure is subjected to a drying process. The current collecting portion 112 may be formed of any type of conductive material, such as aluminum. Also, the current collecting portion 112 may be formed of copper, nickel, cobalt, manganese, and the like. Additionally, the active area 117 may be formed of any type of positive electrode material having high energy density, high power density, and long cycle life.

[0011] Returning attention to FIG. 1, each of the current collectors from the negative electrodes 108a-c can be fused together, as shown at 116. Similarly, each of the current collectors from the positive electrodes 112a-c can be fused together, as shown at 118. The negative electrodes 104a-c and the positive electrodes 106a-c can be fused together using welding techniques. Furthermore, by forming an assembly of the negative electrode current collectors 116 and the positive electrode current collectors 118, multiple electrodes connected in parallel can be formed. Additionally, the battery cell 100 can include a positive electrode / catholyte layer 117 and a solid electrolyte layer 119. The solid electrolyte layer 119 can function as a separator between the positive electrode / catholyte layer 117 and the negative electrode 104. The structure of the cathode / catholyte layer 117 and solid electrolyte layer 119 can be repeated throughout the battery cell, with the pattern being repeated such that each repeated layer is a mirror image of the previous layer.

[0012] The configuration of the battery cell 100 shown with reference to FIG. 1 can be used with a pouch-type laminate 120. The pouch-type laminate 120 can include multiple layers such as an aluminum layer, a nylon layer, a polyethylene terephthalate (PET) layer, and a sealant layer such as co-polymer polypropylene and polyethylene (CPP), polypropylene, polypropylene / polyphthalamide, etc. formed on the inner surface of the pouch-type laminate 120. The pouch-type laminate 120 can be formed in a cup shape to fit over the electrode stack. The pouch-type laminate 120 can be directly sealed with the temperature control mechanism 102 via the sealant layer on all sides of the pouch-type laminate 120. Furthermore, the temperature control mechanism 102 can be centrally located within the pouch-type laminate 120 as shown with reference to FIG. 1.

[0013] With reference to FIG. 4 , the pouch-type laminate 120 can be heat sealed over the exterior tabs 124 at a shelf 400 where portions of the pouch-type laminate 120 form a shelf during the cup-forming process. The shelf 400 can be on either side of the exterior tabs 124 as shown with reference to FIG. 4 . The temperature control mechanism 102 also has a sealant layer 402 heat fused to the underside of the exterior tabs 124. The exterior tabs 124 can extend from the battery cell 100, and the sealant layer 402 can be disposed around the exterior tabs 124. The exterior tabs 124 can be formed from any conductive material, such as nickel, nickel-plated copper, aluminum, etc., and can function as electrical leads extending from the battery cell 100. Thus, in some examples, a load can be coupled to the battery cell 100 via the exterior tabs 124. In some examples, a first layer of sealant can be disposed on the inner surface of the pouch-type laminate 120, a second layer of sealant can be disposed on either side of the multiple external tabs 124, and a third layer of sealant can be disposed around the temperature control mechanism 102.

[0014] Each of the multiple sealant layers can be heat welded such that the shelf 400 is in the position shown with reference to Figure 4. Thus, the temperature control mechanism 102, the multiple exterior tabs 124, and the shelf 400 of the pouch-type laminate 120 are sealed to one another with the sealant layers, thereby forming a near-hermetic seal.

[0015] In some instances, such as configurations where a particular battery cell 100 mates with another battery cell 100 rather than directly with a load, the multiple external tabs 124 can be fused to a single tab 500, as shown with reference to Figure 5. In this instance, the tab 500 can be configured to mate with another battery cell 100 instead of with a load.

[0016] Further, in the example shown with reference to FIG. 4 and FIG. 5, the battery cell 100 may include a plurality of internal metal bus bars 404 (here 108). As described with reference to FIG. 1, each of the negative electrodes 104a-104c (here 108a-108c) is welded to one another. In the example shown with reference to FIG. 4, instead of welding the negative electrodes 104a-104c (here 108a-108c) to one another to form the assembly of the negative electrode current collector 116, the negative electrodes 104a-104c (here 108a-108c) are welded to a plurality of external metal bus bars 124. Although not shown, the positive electrodes 106a-106c may also be welded to an external metal bus bar 126 similar to the plurality of external metal bus bars 124.

[0017] As discussed above, the temperature control mechanism 102 may include a layer of CPP disposed about the temperature control mechanism 102. Now referring to FIGS. 6A-6D, the temperature control mechanism 102 may include a sealant layer 600 disposed only on the sides 602-608 of the temperature control mechanism 102. Notably, the sealant layer 600 is not disposed on the top surface 610 of the temperature control mechanism 102 nor on the bottom surface 612 of the temperature control mechanism 102. However, in some examples, the sealant layer 600 may be disposed on the top surface 610 of the temperature control mechanism or the bottom surface 612 of the temperature control mechanism. Further, in some examples, the sealant layer 600 may be disposed on the top surface 610 of the temperature control mechanism and on the bottom surface 612 of the temperature control mechanism. In some examples, the sealant layer 600 may be welded onto the temperature control mechanism 102. Regardless of the location of the sealant layer 600 on the temperature control mechanism 102, the sealant layer 600 can be heat sealed with a sealant layer of the pouch-type laminate 120 to form an airtight seal. The sealant layer 600 can be formed from CPP or a combination of polypropylene and polyphthalamide.

[0018] Further, as shown in Figures 6B and 6C, multiple battery cells 100 can be disposed on a single temperature control mechanism 102. For example, as shown in Figure 6B, three battery cells 100 are disposed on the temperature control mechanism 102. In Figure 6C, six battery cells 100 are disposed on the temperature control mechanism 102. Although three battery cells 100 and six battery cells 100 are shown disposed on a single temperature control mechanism 102, examples contemplate that any number of battery cells can be disposed on a single temperature control mechanism 102.

[0019] 7A and 7B, the temperature control mechanism 102 can be configured to have a heat transfer fluid moving therethrough. More specifically, the temperature control mechanism 102 can include two hollow metal plates 700 and 702 welded together at the edges 704 of the hollow metal plates 700 and 702. When the two hollow metal plates 700 and 702 are welded together, a sealed hollow cavity 706 can be formed between the hollow metal plates 700 and 702, with a passageway 708 disposed within the hollow cavity through which the heat transfer fluid can move. The hollow metal plates 700 and 702 can be formed of metal or polymer to optimize thermal flow. Examples of metals can include stainless steel, aluminum, titanium, and the like. Examples of polymers can include polyolefins such as polypropylene or HDPE, as well as PPS, PET, PEEK, polyimide, POM, PVC, PTFE, polyurethane, FEP, rubber, and the like.

[0020] The heat transfer fluid can be supplied to the temperature control mechanism 102 from an external source (not shown) via an inlet 710 fluidly coupled to the plurality of passages 708. The external source can adjust the temperature of the heat transfer fluid supplied to the temperature control mechanism 102 based on the plurality of temperature requirements of the battery cells 100. Thus, the temperature control mechanism 102 can be used to adjust the temperature of the battery cells 100. In some examples, the external source can also include a heat exchanger, whereby the heat transfer fluid can function to remove heat from the heat transfer fluid when the heat transfer fluid passes through the temperature control mechanism 102 and the plurality of passages 708 and is discharged from an outlet 712 fluidly coupled to the passages 708 in some examples where the heat transfer fluid is drawing heat from the battery cells 100, i.e., cooling the battery cells 100. The heat transfer fluid can be used repeatedly to remove heat from the battery cells 100. Therefore, the temperature control mechanism 102 can be used to reduce the temperature of the battery cell 100 in a mode in which the output of the battery cell 100 is supplied to a load, ie, before the aircraft takes off, etc.

[0021] In addition to cooling, as described above, the temperature control mechanism can be used to apply heat to the battery cell 100. To further explain, when the temperature of the battery cell 100 needs to be increased, such as during a charging process, an external source and a heat exchanger can be used to increase the temperature of a heat transfer fluid, which can then be supplied to the temperature control mechanism 102. Thus, the heat transfer fluid can function, via the temperature control mechanism 102, to increase the temperature of the battery cell 100.

[0022] The battery cell 100 shown with reference to FIG. 1 can be a liquid lithium metal or lithium-ion system. In some examples, the battery cell can be a solid-state battery, as shown with reference to FIG. 8 and battery cell 800. Battery cell 800 can include multiple electrode stacks 802a-802c, each having a configuration as described above, i.e., anode 104 and cathode 106, etc. Battery cell 800 can include all of the features of battery cell 100. Additionally, the discussion above with respect to FIGS. 1 and 4-7 is equally applicable to FIG. 8.

[0023] Each of the multiple negative electrodes 104 can include a single current collector 108 (shown generally as current collecting portion 108 in FIG. 9) and multiple active areas 114 (FIG. 9), which can be formed as a coating on the current collecting portion 108, as described in detail above and shown more clearly with reference to FIG. 9. As can be seen with reference to FIG. 9, the negative electrodes 104 can include a single current collector 108, where the multiple active areas 114 can be formed on the current collecting portion 108 as described above.

[0024] In addition to the techniques described above, active areas 114 can be formed by skip coating active area 114 material, such as graphite or lithium deposits, onto one or both sides of the current collecting portion 108. In these examples, the active area 114 can have another layer, a solid electrolyte / separator, due to the features of the anode 104. Once the structure of FIG. 9 is formed and dried, slits can be formed in the structure so that an appropriate number of current collecting portions 108 and active areas 114 can be obtained. Using the slit structure, stacking can be performed to achieve the structure shown in FIG. 8 and with reference to the battery cell 800.

[0025] Each of the multiple positive electrodes 106 can include a current collecting portion 112 and an active area 117 formed as a coating on the current collecting portion 112, as shown more clearly with reference to Figure 10. As can be seen with reference to Figure 10, similar to the negative electrodes 104, the multiple active material layers 117 of the positive electrodes can be coated on one or both sides of each current collecting portion 112.

[0026] Furthermore, the active area 117 can be formed of any type of positive electrode material that has high energy density, high power density, and long cycle life. Furthermore, the active area 117 can be formed by skip coating the material of the active area 117 onto the current collecting portion 112. Once the structure of FIG. 10 is formed and dried, slits can be formed in the structure to obtain an appropriate number of current collecting portions 112 and active areas 117. The slit structure can be used to perform stacking to achieve the structure shown with reference to FIG. 8 and the battery cell 800. In addition, as can be seen with reference to FIG. 8, the temperature control mechanism 102 can be disposed between the stacks and centrally located within the battery cell 800.

[0027] In addition to using slit and skip coating techniques to form the plurality of anodes 104 and the plurality of cathodes 106, a punching process can be used to form the plurality of anodes 104 and the plurality of cathodes 106, as shown with reference to Figures 11 and 12. After forming the anode 104 with the active area 114 by coating the material of the active area 114 on the current collecting portion 108 using the techniques described above, a plurality of punch throughs 1100 can be formed in the anode 104. Once the plurality of punch throughs 1100 are formed, the current collecting portion 108 can be formed within the plurality of punch throughs 1100.

[0028] A similar process can be used for the positive electrode 106. More specifically, the active area 117 can be formed by coating the material of the active area 117 onto the current collecting portion 112. Thereafter, the multiple perforations 1200 can be formed in the positive electrode 106. Once the multiple perforations 1200 are formed, the current collecting portion 112 can be formed within the multiple perforations 1200. The negative electrode of FIG. 11 is used with the positive electrode of FIG. 12 to prevent the bare multiple metal current collectors 108 and 112 from contacting after stacking, thereby potentially shorting the battery cell.

[0029] In examples, the temperature control mechanism 102 can have any type of configuration. Referring now to FIG. 13, a temperature control mechanism 1300 is shown. Here, the temperature control mechanism 1300 has a semi-ovoid configuration, as opposed to a substantially planar configuration as shown with reference to FIGS. 1-11. Furthermore, the temperature control mechanism 1300 can have the same features as the temperature control mechanism 102 described above, particularly with reference to FIGS. 4-7. Additionally, the description of FIGS. 1-11 above is equally applicable to the temperature control mechanism 1300. The temperature control mechanism 1300 can be formed from a flexible material that can bend upon application of fluid pressure. Examples of materials that can be used include any type of polymer or elastomer that is bendable.

[0030] The oval configuration of the temperature control mechanism 1300 allows the temperature control mechanism 1300 to apply pressure within the battery cells 100 and 800. In some examples, the flow pressure of the temperature control mechanism 1300 can be adjusted to control the pressure applied within the battery cells 100 and 800. The flow pressure can be related to a thermal transfer fluid used for heating and / or cooling. In addition, any other type of fluid can be used to adjust the pressure exerted by the temperature control mechanism 1300. Thus, in addition to adjusting the temperature of the battery cells 100 and 800 as detailed above, the temperature control mechanism 1300 can have the additional advantage of adjusting the pressure within the battery cells 100 and 800 as explained above.

[0031] In some examples, the battery cells can be coupled to each other via tabs, as shown with reference to FIG. 14, which illustrates the battery interconnect system 1403. The battery cells 1401A-1401C can be coupled to each other via tabs 1400A / B, 1400B / C, 1402A / B, and 1402A / B. The tabs 1400A / B and 1400B / C can correspond to either the positive or negative battery leads of the battery cells 1401A-1401C, and the tabs 1402A / B and 1402A / B can correspond to the other of the positive or negative battery leads of the battery cells 1401A-1401C (i.e., if the tabs 1400A / B and 1400B / C correspond to the positive leads, then the tabs 1402A / B and 1402A / B can correspond to the negative leads, and vice versa). Battery cell 1401A can be coupled to battery cell 1401B via tabs 1400A / B and tabs 1402A / B. In some examples, tabs 1400A / B and 1402A / B can incorporate the structure of tab 500 and can include the same configuration as tab 500.

[0032] To further illustrate the formation of the tabs 1400A / B, referring to FIG. 15, the tabs 1400A / B can be formed by coupling the tab 500A of the battery cell 1401A with the tab 500B of the battery cell 1401B. Each of the tabs 500A and 500B can have the configuration of the tab 500 described above. The tab 500A can be coupled to the tab 500B in the region 1500 using any type of mechanical joint. In some examples, a portion 1502 of the tab 500A can overlap a portion 1504 of the tab 500B in the region 1500. The overlapping portions 1502 and 1504 can be coupled as described herein. Additionally, the tab 500A can be welded to the tab 500B in the region 1500 using ultrasonic welding, laser welding, resistance welding, and the like. In examples where tabs 1400A / B correspond to positive leads, tabs 500A and 500B can be formed from positive electrode 106. In examples where tabs 1400A / B correspond to negative leads, tabs 500A and 500B can be formed from negative electrode 104. Note that tabs 1400B / C can be formed in a manner similar to that described with reference to tabs 1400A / B.

[0033] 16, similarly, the tabs 1402A / B can be formed in the same manner as the tabs 1400A / B described with reference to FIG. 15. The tabs 1402A / B can be formed by coupling the tab 500AA of the battery cell 1401A with the tab 500BB of the battery cell 1401B. The tab 500AA can be coupled to the tab 500BB in the region 1600 using any type of mechanical coupling. In some examples, a portion 1602 of the tab 500AA can overlap a portion 1604 of the tab 500BB in the region 1600. The overlapping portions 1602 and 1604 can be coupled as described herein. In addition, the tab 500AA can be welded to the tab 500BB in the region 1600 using ultrasonic welding, laser welding, resistance welding, etc. If the tabs 1402A / B correspond to positive electrode leads, the tabs 500AA and 500BB can be coupled to the positive electrode 106. If tabs 1402A / B correspond to negative electrode leads, tabs 500AA and 500BB can be coupled to the negative electrode 104. In some examples, tabs 1402B / C can be formed in a manner similar to that described with reference to tabs 1402A / B.

[0034] The battery cells 1401D-1401F can be coupled to each other via the tabs 1404D / E, 1404E / F, 1406D / E, and 1406E / F. The tabs 1404D / E and 1404E / F can correspond to either the positive or negative lead of the battery leads of the battery cells 1401D-1401F, and the tabs 1406D / E and 1406E / F can correspond to the other of the positive or negative lead of the battery leads of the battery cells 1401D-1401F (i.e., if the tabs 1404D / E and 1404E / F correspond to the positive lead, the tabs 1406D / E and 1406E / F can correspond to the negative lead, and vice versa). The battery cell 1401D can be coupled to the battery cell 1401E via the tabs 1404D / E and 1406D / E. Tabs 1404D / E and 1406D / E can be formed similarly to tab 500 and can have the same configuration as tab 500 as described with reference to Fig. 5. Additionally, tabs 1404D / E and 1406D / E can be formed between battery cells 1401D and 1401E in a manner similar to that described with reference to Figs. 15 and 16 and battery cells 100A and 100B. Similarly, tabs 1404E / F and 1406E / F can be formed between battery cells 1401E and 1401F in a manner similar to that described with reference to Figs. 15 and 16 and battery cells 1401A and 1401B.

[0035] In some examples shown with reference to FIG. 14, each of the battery cells 1401A-1401F is disposed within their own pouch-type laminate, such as the pouch-type laminate 120 described above. However, in further examples, each of the electrode stacks (or windings) of the battery cells can share a single pouch-type laminate, such as being disposed within the single pouch-type laminate 120. Here, each of the battery cells can have a similar configuration to the battery cell 800, where the negative electrodes 104 and the positive electrodes 106 are formed using the punch through processing described above with reference to FIGS. 9 and 10. Each of the battery cells 800 can have tabs similar to the tabs 500, 500A, 500AA, 500B, and 500BB described above. Additionally, each of the battery cells 800 can be electrically coupled to one another via the tabs 500, 500A, 500AA, 500B, and 500BB described above. Here, multiple positive electrode leads can form an electrical connection through multiple positive electrodes, such as the positive electrode 106 described above. Additionally, multiple negative electrode leads can form an electrical connection through multiple negative electrodes, such as the negative electrode 104 described above.

[0036] The battery cells 1401A-1401F may have the configurations described above with reference to the battery cell 100 and FIGS. 1-13. However, it should be noted that the plurality of battery cells, electrode stacks (or windings) 1401A-1401F may also have the configurations described above with reference to the battery cell 800. Furthermore, some of the plurality of battery cells, electrode stacks (or windings) 1401A-1401F may have the configuration of the battery cell 100, while others of the plurality of battery cells, electrode stacks (or windings) 1401A-1401F may have the configuration of the battery cell 800. Each of the battery cells 1401A-1401F may include a temperature control mechanism as described herein, or the battery interconnection system 1403 may include a single temperature control mechanism as described herein, and each of the battery cells 1401A-1401F may be disposed on the temperature control mechanism. Additionally, although only two columns of three battery cells are shown, the examples contemplate any number of columns, and although only three battery cells are shown in one row, a single row or rows can have more than three battery cells.

[0037] 17, an alternative embodiment of a temperature control mechanism 1700 is shown. Here, the temperature control mechanism 1700 has an inlet 710 and an outlet 712. Alternatives implement the above methods and / or processing modules in a non-transitory computer-readable medium that stores computer-readable instructions. The instructions can be executed by computer-executable components integrated with the computer-readable medium and / or processing system. The computer-readable medium may include any suitable computer-readable medium, such as RAM, ROM, flash memory, EEPROM, optical device (CD or DVD), hard drive, floppy drive, non-transitory computer-readable medium, or any suitable device. The computer-executable components may include a computing system and / or processing system (e.g., including one or more co-located or distributed, remote or local processors) connected to a non-transitory computer-readable medium, such as a CPU, GPU, TPUS, microprocessor, or ASIC, although the instructions may alternatively or additionally be executed by any suitable dedicated hardware device.

[0038] Embodiments of the systems and / or methods may include any combination and permutation of the various system components and various method processes, and one or more examples of the methods and / or processes described herein may be performed asynchronously (e.g., sequentially), simultaneously (e.g., in parallel), or in any other suitable order by and / or using one or more example systems, elements, and / or entities described herein.

[0039] As those skilled in the art will recognize from the foregoing detailed description, and from the drawings and claims, modifications and variations can be made to the preferred embodiments of the invention without departing from the scope of the invention, which is defined in the following claims.

Claims

1. 1. A battery interconnection system comprising: A first battery cell, At least one positive electrode tab; the first battery cell including at least one negative electrode tab; A second battery cell, At least one positive electrode tab; and the second battery cell including at least one negative electrode tab; the at least one positive tab of the first battery cell mates with the at least one positive tab of the second battery cell and the at least one negative tab of the first battery cell mates with the at least one negative tab of the second battery cell.

2. the first battery cell includes a positive electrode electrically coupled to the at least one positive electrode tab of the first battery cell, and the second battery cell includes a positive electrode electrically coupled to the at least one positive electrode tab of the second battery cell; 2. The battery interconnect system of claim 1, wherein the first battery cell includes a negative electrode electrically coupled to the at least one negative electrode tab of the first battery cell and the second battery cell includes a negative electrode electrically coupled to the at least one negative electrode tab of the second battery cell.

3. each of the positive electrodes of the first battery cell and the second battery cell is formed using a stamping process; 3. The battery interconnect system of claim 2, wherein each of the first battery cell negative terminal and the second battery cell negative terminal are formed using a stamping process.

4. 4. The battery interconnect system of claim 3, wherein each of the first battery cells and the second battery cells are disposed within a single pouch-type stack.

5. 5. The battery interconnect system of claim 4, wherein the single pouch-type laminate includes a sealant layer formed on an inner surface of the pouch-type laminate, and the temperature control mechanism has a CPP layer disposed on a side of the temperature control mechanism, the CPP layer of the single pouch-type laminate being welded with the CPP layer of the temperature control mechanism, thereby forming a hermetic seal.

6. 10. The battery interconnect system of claim 1, wherein the first battery cell is disposed within a first pouch-type stack and the second battery cell is disposed within a second pouch-type stack.

7. 7. The battery interconnect system of claim 6, wherein the first pouch-type laminate and the second pouch-type laminate each include a copolymer propylene and polyethylene (CPP) layer formed on an inner surface of the pouch-type laminate, the temperature control mechanism having a CPP layer disposed on a side of the temperature control mechanism, and the CPP layer of the first pouch-type laminate and the CPP layer of the second pouch-type laminate are welded with the CPP layer of the temperature control mechanism, thereby forming a hermetic seal.

8. 10. The battery interconnect system of claim 1, wherein the first battery cell and the second battery cell are connected in parallel.

9. Further comprising a temperature control mechanism; The battery interconnect system of claim 1 , wherein each of the first battery cell and the second battery cell is disposed on the temperature control mechanism.

10. 1. A battery interconnection system comprising: A temperature control mechanism; a first battery cell disposed within the temperature control mechanism, At least one positive electrode tab; the first battery cell including at least one negative electrode tab; a second battery cell disposed on the temperature control mechanism, At least one positive electrode tab; and the second battery cell including at least one negative electrode tab; the at least one positive tab of the first battery cell mates with the at least one positive tab of the second battery cell and the at least one negative tab of the first battery cell mates with the at least one negative tab of the second battery cell.

11. the first battery cell includes a positive electrode electrically coupled to the at least one positive electrode tab of the first battery cell, and the second battery cell includes a positive electrode electrically coupled to the at least one positive electrode tab of the second battery cell; 11. The battery interconnect system of claim 10, wherein the first battery cell includes a negative electrode electrically coupled to the at least one negative electrode tab of the first battery cell and the second battery cell includes a negative electrode electrically coupled to the at least one negative electrode tab of the second battery cell.

12. each of the positive electrodes of the first battery cell and the second battery cell is formed using a stamping process; 12. The battery interconnect system of claim 11, wherein each of the first battery cell negative terminal and the second battery cell negative terminal are formed using a stamping process.

13. 13. The battery interconnect system of claim 12, wherein each of the first battery cells and the second battery cells are disposed within a single pouch-type stack.

14. 14. The battery interconnect system of claim 13, wherein the unitary pouch-shaped laminate includes a copolymer propylene and polyethylene (CPP) layer formed on an inner surface of the pouch-shaped laminate, and the temperature control mechanism has a CPP layer disposed on a side of the temperature control mechanism, and the CPP layer of the unitary pouch-shaped laminate is welded with the CPP layer of the temperature control mechanism, thereby forming a hermetic seal.

15. 11. The battery interconnect system of claim 10, wherein the first battery cell is disposed within a first pouch-type stack and the second battery cell is disposed within a second pouch-type stack.

16. 16. The battery interconnect system of claim 15, wherein the first pouch-type laminate and the second pouch-type laminate each include a copolymer propylene and polyethylene (CPP) layer formed on an inner surface of the pouch-type laminate, the temperature control mechanism having a CPP layer disposed on a side of the temperature control mechanism, and the CPP layer of the first pouch-type laminate and the CPP layer of the second pouch-type laminate are welded with the CPP layer of the temperature control mechanism, thereby forming a hermetic seal.

17. 11. The battery interconnect system of claim 10, wherein the first battery cell and the second battery cell are connected in parallel.

18. 1. A battery interconnection system comprising: A first battery cell, At least one positive electrode tab; a positive electrode electrically coupled to the at least one positive electrode tab; At least one negative electrode tab; the first battery cell including a negative electrode electrically coupled to the at least one negative electrode tab; A second battery cell, At least one positive electrode tab; a positive electrode electrically coupled to the at least one positive electrode tab; At least one negative electrode tab; a second battery cell including a negative electrode electrically coupled to the at least one negative electrode tab of the second battery cell; the at least one positive tab of the first battery cell mates with the at least one positive tab of the second battery cell and the at least one negative tab of the first battery cell mates with the at least one negative tab of the second battery cell.

19. each of the positive electrodes of the first battery cell and the second battery cell is formed using a stamping process; 20. The battery interconnect system of claim 18, wherein each of the first battery cell negative terminal and the second battery cell negative terminal are formed using a stamping process.

20. 20. The battery interconnect system of claim 19, wherein each of the first battery cell and the second battery cell are disposed within a single pouch-type laminate, the single pouch-type laminate including a copolymer propylene and polyethylene (CPP) layer formed on an inner surface of the pouch-type laminate, the temperature control mechanism having a CPP layer disposed on a side of the temperature control mechanism, and the CPP layer of the single pouch-type laminate is welded with the CPP layer of the temperature control mechanism, thereby forming a hermetic seal.

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