• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    battery with cells of different capacities. the present invention relates to a battery for use with a portable electronic device. the battery includes a first set of cells with different capacities electrically coupled in a parallel configuration. the cells within the first set of cells can also have different thicknesses and / or dimensions. the first set of cells is positioned inside the battery in order to facilitate the efficient use of space within a portable electronic device. for example, the first set of cells can be arranged to accommodate the components in the portable electronic device.
    公开号:BR112013000684B1
    申请号:R112013000684-6
    申请日:2011-07-11
    公开日:2020-08-11
    发明作者:Ramesh C. Bhardwaj；Taisup Hwang；Richard M. Mank
    申请人:Apple Inc；
    IPC主号:
    专利说明:

    Field
    [001] The present invention relates to batteries for portable electronic devices. More specifically, the current modalities refer to batteries with cells of different capacities, thicknesses and / or dimensions. Related Technique
    [002] Rechargeable batteries are currently used to supply power to a wide variety of portable electronic devices, such as portable computers, cell phones, PDAs, digital music players and cordless power tools. The most commonly used type of rechargeable battery is a lithium battery, which can include a lithium ion or lithium polymer battery.
    [003] Lithium polymer batteries often include cells that are stacked in flexible cases. Such cases are typically light compared to and inexpensive to manufacture. In addition, the cases can be adapted to various cell dimensions, allowing lithium polymer batteries to be used in small space portable electronic devices, such as cell phones, portable computers, and / or digital cameras. For example, a lithium polymer battery cell can achieve a stacking efficiency of 90 to 95% by wrapping a jelly roll and electrolyte arrangement in a foil case. Several cases can then be positioned side by side within a portable electronic device and electrically coupled in series and / or in parallel to form a battery for the portable electronic device.
    [004] However, the efficient use of space can be limited by the use and arrangement of cells in existing battery architectures. In particular, batteries usually contain cells of the same capacity, size and dimensions. The physical arrangement of the cells can additionally mirror the electrical configuration of the cells. For example, a six cell battery can include six lithium polymer cells with the same size and capacity configured in a two-in-one configuration, and three in a (2s3p) configuration in parallel. Within the battery, two rows of three cells arranged side by side can be stacked on top of each other, and each row can be electrically coupled in a parallel configuration and the two lines electrically coupled in a series configuration . Consequently, the battery may require space on a portable electronic device, which is at least the length of each cell, twice the thickness of each cell, and three times the width of each cell. In addition, the battery may be unable to use the free space on the portable electronic device that is outside of a rectangular space reserved for the battery.
    [005] Therefore, the use of portable electronic devices can be facilitated by improvements related to stacking efficiency, capacity, form factor, cost, design and / or the manufacture of batteries that contain polymer battery cells of lithium. SUMMARY
    [006] The described modes provide a battery for use with a portable electronic device. The battery includes a first set of cells with different capacities electrically coupled in a parallel configuration. The cells within the first set of cells can also have different thicknesses and / or dimensions. The first set of cells is positioned inside the battery in order to facilitate the efficient use of space within a portable electronic device. For example, the first set of cells can be arranged to accommodate the components in the portable electronic device.
    [007] In some embodiments, the battery pack also includes a second set of cells with different capacities electrically coupled in a parallel configuration. The first set of cells and the second set of cells can be electrically coupled in a series configuration, if the first set of cells and the second set of cells have substantially the same capacity.
    [008] In some embodiments, the first set of cells is stacked, positioned side by side, or positioned from top to bottom into the battery.
    [009] In some embodiments, one or more of the first set of cells correspond to a lithium polymer cell.
    [0010] In some embodiments, one or more of the first set of cells include: (i) a roll-like arrangement that contains layers that are rolled together that include a cathode with an active coating, a separator, and an anode with a coating active; and (ii) a case that involves the roll type arrangement. BRIEF DESCRIPTION OF THE FIGURES
    [0011] Figure 1 shows a set of batteries, according to a modality.
    [0012] Figure 2 shows a cross-sectional view of a battery according to one modality.
    [0013] Figure 3 shows a battery cell according to a modality.
    [0014] Figure 4 shows a flow chart that illustrates the process of supplying a power supply according to a modality.
    [0015] Figure 5 shows an electronic portable device according to a modality.
    [0016] In the figures, similar reference numbers refer to the same elements as the figure. DETAILED DESCRIPTION
    [0017] The following description is presented to allow anyone skilled in the art to make and use the modalities, and is provided in the context of a specific application and its requirements. Various modifications to the described modalities will be readily understood by those skilled in the art, and the general principles defined here can be applied to other modalities and applications without departing from the spirit and scope of the present disclosure. Thus, the present invention is not limited to the modalities shown, but should be considered with the broadest scope consistent with the principles and features described herein.
    [0018] The data and code structures described in this detailed description are typically stored on a computer-readable storage medium, which can be any device or medium that can store the code and / or data for use by a computer system. . The computer-readable storage medium includes, but is not limited to, volatile memory, non-volatile memory, optical magnetic storage devices such as discs, magnetic tapes, compact discs (CDs), (digital discs versatile DVDs or digital video discs), or other media capable of storing the code and / or data now known or later developed.
    [0019] The methods and processes described in the detailed description section can be implemented as code and / or data, which can be stored in a computer-readable storage medium, as described above. When a computer system reads and executes the code and / or data stored in the computer-readable storage medium, the computer system executes the methods and processes implemented, such as the data and code structures and stored within the storage medium. computer readable.
    [0020] In addition, the methods and processes described here can be included in hardware modules or devices. These modules or devices may include, but are not limited to, an application specific integrated circuit (ASIC), a field programmable port arrangement (FPGA), a dedicated or shared processor that runs a special software module or a piece of code at a given time, and / or other programmable logic devices, now known or developed later. When hardware modules or devices are activated, they execute the methods and processes included within them.
    [0021] The modalities provide a battery with several cells of different capacities, thicknesses, and / or dimensions. The cells can also be arranged to facilitate efficient use of the space of a portable electronic device. For example, cells can be stacked, placed side by side, and / or positioned from top to bottom to accommodate the components of a portable mobile computer, telephone and / or tablet computer.
    [0022] In addition, the cells can be electrically coupled in series and / or parallel configuration. In particular, the battery may include a first set of cells with different capacities electrically coupled in a parallel configuration. The battery pack may also include a second set of cells with different capacities electrically coupled in a parallel configuration. The first and second sets of cells can then be electrically coupled in a series configuration if the first and second sets of cells have substantially the same capacity.
    [0023] Figure 1 shows a battery 100, according to a modality. Battery 100 can supply power to a portable electronic device, such as a portable computer, cell phone, tablet computer, personal digital assistant (PDA), portable media player, digital camera, and / or other type of battery powered electronic device.
    [0024] As shown in figure 1, battery 100 includes a cell number of 102-112. 102-112 cells can correspond to rechargeable cells (for example, secondary cells) such as nickel-cadmium (Ni-Cd) cells, nickel-metal hydride (Ni-MH) cells, lithium-ion cells, and / or the lithium polymer cells. For example, one or more 102-112 cells may correspond to lithium polymer cells, each of which includes a roll-like arrangement of layers wound together (for example, a cathode with an active coating, a separator, and an anode with an active coating) and a flexible case that involves the roll type arrangement. Lithium polymer cells are discussed in more detail below with reference to figure 3.
    [0025] In one or more modalities, cells 102-112 have different capacities, thicknesses and / or dimensions. For example, cells 102-104 can each have a capacity of 3.2 Ah, cells 106-108 can each have a capacity of 1.5 Ah, and cells 110-112 can each have, a capacity of 1.7 Ah. Likewise, cells 102-104 can be longer, thicker, and / or wider than cells 106-112, and cells 106-108 can be longer, thicker, and / or wider than than cells 110-112.
    [0026] Cells 102-112 can also be electrically coupled in a series and / or parallel configuration. In particular, a first set of cells 102, 106 and 110 with different capacities can be electrically coupled in a parallel configuration, and a second set of cells 104, 108 and 112 with different capacities can also be electrically coupled in a parallel configuration. Since the first set of cells and the second set of cells have substantially the same general capacity, the first and second sets of cells can be electrically coupled in a series configuration. In other words, cells 102-112 can be electrically coupled in a configuration of two in series, three in parallel (2s3p).
    [0027] More specifically, the selection, electrical configuration, and / or arrangement of cells 102-112 can be based on the physical and / or electrical requirements of the portable electronic device. First, cells 102-112 can be selected for use in battery 100 and / or electrically coupled within battery 100 to satisfy the electrical requirements (eg voltage, capacity, etc.) of components (eg , printed circuit boards (PCBs), processors, memory, storage, display, optical drives, etc.) in the portable electronic device. For example, cell 106 can be electrically coupled in parallel to cell 110, and cell 108 can be electrically coupled in parallel to cell 112, to give electrically coupled cells 106 and 110 and cells 108 and 112 the same capacity as cell 102 and cell 104 (for example, 3.2 Ah). Cell 102, cell 104, cell 106 and 110, and cells 108 and 112 can then be electrically coupled in series to increase battery voltage 100.
    [0028] Along the same lines, cells 102-112 can be selected for use in battery 100 and / or arranged within battery 100 to facilitate efficient use of space on the portable electronic device. For example, cells 102-112 can be selected for use in battery pack 100 and stacked, positioned side by side, and / or positioned top to bottom within battery 110 to accommodate the components of a portable mobile computer , phone, and / or tablet computer. The battery 100 may therefore include an asymmetric design, which maximizes the use of free space within the portable electronic device. In turn, battery 100 can provide greater capacity, packaging efficiency and / or voltage for batteries containing cells with the same capacity, dimensions and / or thickness. Batteries that contain cells of different sizes and / or dimensions are discussed in more detail below with respect to figures 2 and 3.
    [0029] Figure 2 shows a cross-sectional view of a battery according to one modality. The battery includes three 202-206 cells of different thickness and / or size. As shown in figure 2, cell 202 is the thinnest, cell 204 is of medium thickness and cell 206 is the thickest. In addition, 202-206 cells can be arranged on the battery based on an asymmetrical design that allows the battery to fill the free space inside a portable electronic device. For example, 202-206 cells can be positioned inside the battery to assume a curved region of space inside a cell phone, laptop, portable media player, digital camera and / or PDA.
    [0030] Figure 3 shows a battery cell 300, according to one modality. The battery cell 300 may correspond to a lithium polymer cell that is used to power a portable electronic device. The battery cell 300 includes a roll-like arrangement 302 that contains a series of layers that are wound together, which include an active-coated cathode, a separator, and an anode with an active coating. Specifically, the roll type arrangement 302 may include a strip of cathode material (for example, aluminum foil coated with a lithium compound) and a strip of anode material (for example, carbon coated copper foil), separated by a strip of separation material (for example, conducting polymer electrolyte). The cathode, anode, and separation layers can then be wrapped in a mandrel to form a spiral-shaped wrapping structure. The roll type arrangement is well known in the art and will not be described further.
    [0031] During the assembly of the battery cell 300, the roll type arrangement 302 is closed within a flexible wrap, which is formed by a fold of a flexible sheet along a fold line 312. For example, the flexible sheet it can be produced from aluminum, with a polymer film, such as polypropylene. After the flexible sheet is folded, the flexible sheet can be sealed, for example, by applying heat along a side seal 310 and along a surface seal 308.
    [0032] The roll type arrangement 302 also includes a set of guide flaps 306 coupled to the cathode and anode. The conduction flaps 306 can extend through seals on the case (for example, formed using a sealing tape 304) to provide the terminals for the battery cell 300. Then, the conduction flaps 306 can be used to electrically couple battery cell 300 with one or more other battery cells to form a battery, such as battery 100 of FIG. 1.
    [0033] For example, battery cell 300 may belong to a first set of cells in the battery with different capacities electrically coupled in a parallel configuration. The battery pack may also include a second set of cells with different capacities coupled in a parallel configuration. The first set of cells can then be electrically coupled to the second set of cells in a series configuration, if the first and second sets of cells have substantially the same capacity. Therefore, the conductive tabs 306 may allow the battery cells 300 to be used in a battery pack that contains cells of different capacities that are electrically connected in parallel and / or a series and parallel configuration.
    [0034] Figure 4 shows a flow chart that illustrates the process of supplying a power supply according to a modality. In one or more modalities, one or more steps can be omitted, repeated and / or performed in a different order. Therefore, the specific arrangement of stages shown in figure 4 should not be interpreted as limiting the scope of the modalities.
    [0035] Initially, a first set of cells with different capacities is placed inside a battery to facilitate the use of space inside a portable electronic device (operation 402). The cells can be selected for the physical (for example, dimension, thickness, etc.) and / or electrical (for example, capacity, voltage, etc.) characteristics that allow the cells to supply energy and / or accommodate the components in a way the portable electronic device. The cells can correspond to the lithium polymer cells and / or other types of rechargeable battery cells. Then, the first set of cells is electrically coupled in a parallel configuration (operation 404). The parallel configuration can increase both battery capacity and redundancy.
    [0036] A second set of cells with different capacities is also disposed inside the battery (operation 406) and is electrically coupled in a parallel configuration (operation 408). As with the first set of cells, the second set of cells can be selected, electrically coupled and / or arranged inside the battery to satisfy the electrical and physical requirements of components in the portable electronic device.
    [0037] Finally, the first set of cells is connected to a second set of cells in a series configuration (operation 410). Connecting the two sets of cells in series can increase the battery voltage. In addition, the first and second sets of cells can be electrically connected in series if the first and second sets of cells have substantially the same capacity.
    [0038] The rechargeable battery described above can, in general, be used in any type of electronic device. For example, figure 5 illustrates a portable electronic device 500, which includes a processor 502, a memory 504 and a display 508, which are all powered by a battery 506. The portable electronic device 500 can correspond to a portable computer, tablet computer , cell phone, PDA, portable media player, digital camera and / or other type of battery powered electronic device. The 506 battery can correspond to a battery pack, which includes one or more rechargeable battery cells. In particular, the battery pack may include a first set of cells with different capacities electrically coupled in a parallel configuration. The battery pack may also include a second set of cells with different capacities electrically coupled in a parallel configuration. The first and second sets of cells can be electrically coupled in a series configuration, if the first and second sets of cells have substantially the same capacity.
    [0039] The preceding descriptions of the various modalities have been presented for purposes of illustration and description only. They are not intended to be exhaustive or to limit the invention to the forms presented. Therefore, many modifications and variations will be evident to those skilled in the art. In addition, the above description is not intended to limit the present invention.
    权利要求:
    Claims (9)
    [0001]
    1. Portable electronic device comprising: a set of computing components, characterized by the fact that it comprises: a first set of cells comprising a first cell, second cell and third cell; wherein the first cell, second cell and third cell each have different capacities and dimensions; wherein the capacity of the first cell is the same as the cumulative capacity of the second and third cells; wherein the first cell, second cell and third cell are electrically coupled in a parallel configuration; a second set of cells comprising a fourth cell, fifth cell and sixth cell; wherein the fourth cell, fifth cell and sixth cell each have different capacities and dimensions; wherein the capacity of the fourth cell is equal to the cumulative capacity of the fifth and sixth cells; wherein the fourth cell, fifth cell and sixth cell are electrically coupled in a parallel configuration; wherein the first set of cells and the second set of cells have the same capacity; and wherein the first set of cells and the second set of cells are electrically coupled in a series configuration.
    [0002]
    2. Portable electronic device according to claim 1, characterized by the fact that the first set of cells is stacked, positioned side by side, or positioned from top to bottom inside the battery.
    [0003]
    3. Portable electronic device, according to claim 1, characterized by the fact that the cells inside the first set of cells have different thicknesses.
    [0004]
    4. Portable electronic device according to claim 1, characterized by the fact that one or more of the first set of cells corresponds to a lithium polymer cell.
    [0005]
    5. Portable electronic device according to claim 1, characterized by the fact that one or more of the first set of cells comprises: a jelly roll arrangement comprising layers that are wound together, including a cathode with an active coating , a separator and an anode with an active coating; and a case that involves the roll-over arrangement.
    [0006]
    6. Method for providing a power source for a portable electronic device, characterized by the fact that it comprises the steps of: arranging a first set of cells within a portable electronic device, the first set of cells comprising a first cell, second cell and third cell in which the first cell, the second cell and the third cell have different capacities and dimensions; wherein the capacity of the first cell is the same as the cumulative capacity of the second and third cells; arranging a second set of cells within the portable computing device, the second set of cells comprising a fourth cell, fifth cell and sixth cell; wherein the fourth cell, fifth cell and sixth cell have different capacities and dimensions; wherein the capacity of the fourth cell is equal to the cumulative capacity of the fifth and sixth cells; electrically couple the first set of cells in a parallel configuration; electrically couple the second set of cells in a parallel configuration; wherein the first set of cells coupled in parallel and the second set of cells coupled in parallel have the same capacity; electrically couple the first set of cells and the second set of cells in a series configuration.
    [0007]
    7. Method according to claim 6, characterized by the fact that the first set of cells is stacked, positioned side by side, or positioned from top to bottom inside the battery.
    [0008]
    8. Method according to claim 6, characterized by the fact that one or more of the first set of cells comprise: a roll type arrangement comprising layers that are rolled together, including a cathode with an active coating, a separator, and a anode with an active coating; and a case that involves the roll-over arrangement.
    [0009]
    9. Method according to claim 6, characterized by the fact that one or more of the first set of cells corresponds to a lithium polymer cell
    类似技术:
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    BR112013000684B1|2020-08-11|PORTABLE ELECTRONIC DEVICE AND METHOD TO PROVIDE AN ENERGY SOURCE FOR THE SAME
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    同族专利:
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    TW201230447A|2012-07-16|
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    法律状态:
    2018-04-10| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2019-04-24| B06T| Formal requirements before examination [chapter 6.20 patent gazette]|
    2020-01-28| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|
    2020-06-23| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2020-08-11| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/07/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    US12/835,617|2010-07-13|
    US12/835,617|US9040187B2|2010-07-13|2010-07-13|Battery pack with cells of different capacities electrically coupled in parallel|
    PCT/US2011/043582|WO2012009281A1|2010-07-13|2011-07-11|Battery pack with cells of different capacities|
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