WO2021104206A1 - 柔性电芯及终端 - Google Patents

柔性电芯及终端 Download PDF

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Publication number
WO2021104206A1
WO2021104206A1 PCT/CN2020/130892 CN2020130892W WO2021104206A1 WO 2021104206 A1 WO2021104206 A1 WO 2021104206A1 CN 2020130892 W CN2020130892 W CN 2020130892W WO 2021104206 A1 WO2021104206 A1 WO 2021104206A1
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WO
WIPO (PCT)
Prior art keywords
cell unit
battery cell
bare
bare cell
flexible battery
Prior art date
Application number
PCT/CN2020/130892
Other languages
English (en)
French (fr)
Inventor
谢红斌
张俊
Original Assignee
Oppo广东移动通信有限公司
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Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2021104206A1 publication Critical patent/WO2021104206A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present disclosure relates to the field of electronic equipment, and in particular to a flexible battery core and a terminal.
  • Smart terminals including VR, AR, smart headsets, smart bracelets, wearable mobile phones, etc.
  • these smart terminals can be worn on the human body through headbands, wristbands, etc., to better interact with users.
  • a power supply module such as a battery is generally placed in a certain area.
  • a power supply module such as a battery is generally placed in a certain area.
  • An object of the present disclosure is to provide a flexible battery cell with a flexible shape.
  • a flexible battery cell includes:
  • a bare cell includes a connecting body and a bare cell unit strip.
  • the connecting body is provided with connecting sections and bendable sections along its extending direction, and the bare cell unit strip is connected to one side of the connecting section , And surround the connecting section with the connecting section as an axis;
  • the tabs are connected to the bare cell unit strips.
  • the present disclosure provides a terminal.
  • the terminal includes a terminal body and a flexible battery as described; the terminal body has a battery accommodating position, and the flexible battery is accommodated in the battery. The core is placed in position.
  • the tabs and the bare cell unit strips wound on the connecting section jointly form a cell unit. Therefore, the technical solution of the present disclosure is embodied in that a plurality of cell units form a cell unit group, and each cell Since there are bendable sections between the units, the flexible battery core can be bendable. Since multiple cell units do not need to be connected in one step, they can be used in terminals with deformability.
  • the connecting body is connected to the bare cell unit strip, so that the cell unit formed after the bare cell unit strip is wound around the connecting section also forms a connection relationship based on the connecting body, so that there is no need to further
  • the connection between the battery cells effectively improves the space utilization rate in the battery cells and facilitates generation and processing.
  • the cell units formed by each bare cell unit strip will be self-balanced by connecting the main body, thereby effectively reducing the difficulty and complexity of management between the cell units.
  • the current on the bare cell unit strips can be drawn from the tabs without moving along the bare cell unit strips to the connecting body and then from the connecting body. ⁇ . Therefore, the problem of the increase of internal resistance caused by the small size of the bare cell unit strip is effectively alleviated, and the problem of the increase of internal resistance caused by the size and winding of the bare cell unit strip is effectively alleviated.
  • the flexible battery of the present disclosure takes into account the advantages of flexibility and low impedance, and is beneficial to be used in various terminals with changeable shapes.
  • Fig. 1 is a schematic structural diagram of a bare cell according to an embodiment of the present disclosure
  • Fig. 2 is an exploded schematic diagram of the composition structure of the bare cell in Fig. 1;
  • FIG. 3 is a schematic diagram of the structure of a tab arranged on a bare cell in an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of the structure of the bare cell unit strips in FIG. 3 after being wound on the connecting section;
  • FIG. 5 is a schematic diagram of the structure of the tabs arranged on the bare cell in another embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of the bare cell unit strip in FIG. 5 after being wound on the connecting section;
  • FIG. 7 is a schematic diagram of an embodiment in which the terminal is a head-mounted electronic device.
  • the direction indications (such as up, down, left, right, front and back) are used to explain the structure and movement of various elements of the present disclosure not absolute but relative. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the directions of these directions also change accordingly.
  • the flexible battery and a terminal proposed in this embodiment.
  • the terminal is an intelligent terminal or mobile terminal device equipped with a battery-powered system.
  • the terminal includes but is not limited to being set to be connected via a wired line, such as a public switched telephone network (PSTN), digital subscriber line (digital subscriber line, DSL), digital cable, direct cable connection, and/or another data connection/network and/or via, for example, cellular network, wireless local area network (WLAN), such as handheld digital video broadcasting (digital video broadcasting) video broadcasting handheld, DVB-H) network digital TV network, satellite network, amplitude modulation-frequency modulation (AM-FM) broadcast transmitter, and/or the wireless interface of another communication terminal to receive/transmit communication signals installation.
  • PSTN public switched telephone network
  • DSL digital subscriber line
  • DSL digital cable
  • direct cable connection and/or another data connection/network
  • WLAN wireless local area network
  • WLAN wireless local area network
  • AM-FM amplitude modulation-frequency modulation
  • a communication terminal set to communicate through a wireless interface may be referred to as a "wireless communication terminal", a “wireless terminal” and/or a “smart terminal”.
  • smart terminals include, but are not limited to, satellite or cellular phones; personal communication system (PCS) terminals that can combine cellular radio phones with data processing, fax, and data communication capabilities; can include radio phones, pagers, and the Internet/ Personal Digital Assistant (PDA) with intranet access, web browser, memo pad, calendar, and/or global positioning system (GPS) receiver; and conventional laptop and/or palmtop Receiver or other electronic device including a radio telephone transceiver.
  • the terminal can also include, but is not limited to, electronic book readers, smart wearable devices, mobile power sources (such as power banks, travel chargers), electronic cigarettes, wireless mice, wireless keyboards, wireless headsets, Bluetooth speakers, etc. Rechargeable electronic equipment.
  • the flexible battery 1 can be used in a terminal with a changeable shape, so as to follow the shape change of the terminal and change the shape accordingly. While providing power to the terminal, it has good shape change flexibility.
  • specific embodiments of the flexible battery 1 are described.
  • FIG. 1 is a schematic diagram of the structure of a bare cell according to an embodiment of the present disclosure.
  • the flexible cell 1 in this embodiment includes a bare cell 11 and tabs 12.
  • the bare cell 11 includes a connection main body 112 and a bare cell unit bar 111.
  • the connection main body 112 has a connection section 1121 and a bendable section 1122 distributed along its extending direction.
  • the bare cell unit bar 111 is connected to one of the connection sections 1121.
  • the bare cell unit strip 111 is shown in an unwound form in order to clearly show the structure of the bare cell 11 in FIG. 1 with the connecting section 1121 as the axis.
  • the tab 12 is connected to the bare cell unit bar 111.
  • the flexible battery 1 includes a battery and a battery protection board.
  • the electric core includes a bare electric core 11 and a tab 12.
  • the bare cell 11 includes a positive electrode sheet 131, a separator film 132, and a negative electrode sheet 133 stacked in sequence.
  • the isolation film 132 is sandwiched between the positive electrode sheet 131 and the negative electrode sheet 133.
  • the positive electrode sheet 131, the isolation film 132, and the negative electrode sheet 133 may be used as a set, and the bare cell 11 may include multiple sets of the positive electrode sheet 131, the isolation film 132 and the negative electrode sheet 133.
  • the positive electrode sheet 131 may be an aluminum foil coated with a positive electrode active material on the surface.
  • the negative electrode sheet 133 may be a copper foil coated with a negative electrode active material on the surface.
  • the bare cell 11 is in the shape of a sheet, and its shape may be rectangular, square, circular, oval, etc.; it may also be irregular.
  • a connecting main body 112 and a bare cell unit bar 111 are formed on the bare cell 11.
  • the bare cell 11 as a whole includes a connecting main body 112 and a bare cell unit bar 111, so the connecting main body 112 and the bare cell unit bar 111 have the same characteristics as those of the positive electrode plate 131, the isolation film 132, and the negative electrode plate in the above-mentioned embodiment.
  • 133 corresponds to the positive electrode sheet 131 layer, the separator 132 layer, and the negative electrode sheet 133 layer.
  • the connecting body 112 is divided into a connecting section 1121 and a bendable section 1122.
  • the connecting body 112 is elongated, and the connecting section 1121 and the bendable section 1122 are arranged along the extension direction of the connecting body 112.
  • the connecting section 1121 and the bendable section 1122 are alternately arranged, and the bendable section 1122 is located between two adjacent connecting sections 1121. It can be understood that, depending on the shape of the connecting body 112, the distribution of the connecting section 1121 and the bendable section 1122 are also different.
  • the bendable section 1122 makes the battery core of the present disclosure flexible. That is, the battery cell can be bent from the bendable section 1122, thereby achieving the effect of flexibility.
  • the connecting section 1121 and the bendable section 1122 may be of the same material or different materials. For example, a soft material can be selected for the bendable section 1122 to facilitate bending.
  • the bendable section 1122 and the connecting section 1121 are made of the same material, so that the current can be better conducted on the connecting body 112. Since the bendable section 1122 is not wrapped by the bare cell unit bars 111, it can have better bending performance.
  • the connecting section 1121 is used to connect with the bare cell unit bar 111.
  • the connecting section 1121 is connected to one end of the bare cell unit bar 111, and the other end of the bare cell unit bar 111 is surrounded by the connecting section 1121 as an axis, thereby wrapping the connecting section 1121.
  • the width of the connecting section 1121 is approximately the same as the width of the bare cell unit bar 111.
  • the connecting section 1121 is connected to somewhere in the middle of the bare cell unit bar 111, and two ends of the bare cell unit bar 111 are respectively wound on the connecting section 1121 with the connecting section 1121 as an axis in opposite directions.
  • the width of the connecting section 1121 is greater than the width of the bare cell unit bar 111.
  • the connecting section 1121 and the bare cell unit bar 111 may be two parts, and then they are connected by a connecting means. For example, welding, conductive adhesive bonding, etc.
  • the connecting section 1121 and the bare cell 11 unit are integrally formed, thereby ensuring the stability of current conduction between the bare cell unit bar 111 and the connecting section 1121, and improving the structural stability of the bare cell 11 .
  • the bare cell 11 is cut directly to form the connecting body 112 and the bare cell unit bar 111. Please refer to the figure, you can cut according to the shape shown in the figure.
  • the strips 111 of the bare cell unit after being cut may surround the corresponding connecting section 1121.
  • the number of bare cell unit bars 111 is not specifically limited here, and it may be two or more.
  • the number of connecting segments 1121 on the corresponding connecting body 112 is also not limited.
  • Each bare cell unit bar 111 is correspondingly connected to a connecting section 1121, and two adjacent bare cell unit bars 111 are spaced along the extending direction of the connection main body 112.
  • the width of the interval corresponds to the width of the bendable section 1122. In an example, the interval may be 1-50mm.
  • a plurality of bare cell unit bars 111 are located on the same side of the connection main body 112. Therefore, the connecting body 112 is correspondingly located on one side of the connecting body 112. During the cutting process, it can be cut along the middle of a whole square bare cell 11 to form two shapes of the bare cell 11 in the present disclosure, effectively avoiding the waste of materials.
  • a plurality of bare cell unit bars 111 may also be located on opposite sides of the connection main body 112.
  • connection of multiple battery cells will increase the low utilization of the space between the batteries, thereby reducing the overall energy density of the battery.
  • the connection main body 112 and the bare cell unit bar 111 are integrally formed, so that the cell unit formed after the bare cell unit bar 111 is wound around the connection section 1121 also forms a connection relationship based on the connection main body 112, thereby There is no need to further connect each cell unit, which effectively improves the space utilization rate in the cell and facilitates generation and processing.
  • each battery cell needs to be packaged with an independent aluminum-plastic film outer packaging, which increases the total weight of the battery tape.
  • a carrier in order to be able to connect a plurality of battery cells to obtain a battery belt, a carrier must be used for connection, which will increase the overall weight of the battery belt.
  • the tab 12 is separately connected to the bare cell unit bar 111.
  • the tab 12 is divided into a positive tab 121 and a negative tab 122.
  • the positive tab 121 is connected to the positive tab 131 of the bare cell unit bar 111, thereby leading the current on the positive tab 131.
  • the negative lug 122 is connected to the negative plate 133 of the bare cell unit bar 111, so as to derive the current on the negative plate 133.
  • the flexible battery 1 further includes a total tab 13, and the total tab 13 is connected to the connecting body 112.
  • the arrangement of the total tab 13 can facilitate the connection between the flexible battery 1 and the external unit.
  • One end of the tab 12 is connected to the bare cell unit bar 111, and the other end can be directly connected to the total tab 13; or the other end of the tab 12 is connected to the connection body 112, so that each bare cell unit bar 111
  • the current of ⁇ is collected on the connecting main body 112, and then is derived from the main tab 13 again.
  • the total tabs 13 can be arranged on the same side of the connecting body 112 or on different sides.
  • the tab 12 on each bare cell unit bar 111 can be directly connected to the battery protection board, thereby further reducing the path through which the current flows.
  • the current on the bare cell unit bar 111 can be drawn from the tab 12 without moving along the bare cell unit bar 111 to the connecting body 112 and then flowing out from the connecting body 112. Therefore, the problem of increased internal resistance caused by the small size of the bare cell unit bar 111 is effectively alleviated.
  • each bare cell unit bar 111 is provided with a positive lug 121 and a negative lug 122 correspondingly.
  • the connection position of the positive electrode ear 121 and the negative electrode ear 122 on the bare cell unit bar 111 is not limited.
  • each bare cell unit bar 111 is provided with at least two positive lugs 121 and at least two negative lugs 122 correspondingly.
  • the bare cell unit bar 111 is looped around the connecting section 1121 as an axis, and the positive electrode tab 131 of each circle of the bare cell unit bar 111 is correspondingly connected with a positive lug 121, and the negative electrode tab of each circle of the bare cell unit bar 111 is A negative lug 122 is correspondingly connected to 133.
  • the current generated on each turn of the bare cell unit bar 111 can be drawn from the tab 12 in time, which further reduces the internal resistance of the bare cell unit bar 111, thereby reducing the generation of the bare cell unit bar 111.
  • the heat improves the use safety of the flexible battery 1.
  • the positive lug 121 and the negative lug 122 may both be arranged on the same side of the bare cell unit bar 111.
  • each side of the bare cell unit bar 111 is provided with a positive electrode ear 121 and a negative electrode ear 122.
  • the two sides of the bare cell unit strip 111 along the extending direction of the connecting body 112 are respectively a first side and a second side; the positive lug 121 They are all located on the first side of the bare cell unit bar 111, and the negative lugs 122 are all located on the second side of the bare cell unit bar 111. It can be understood that the positions of the positive ear 121 and the negative ear 122 can be reversed. For example, the positive lugs 121 are all located on the second side of the bare cell unit bar 111, and the negative lugs 122 are all located on the first side of the bare cell unit bar 111.
  • the arrangement of the positive and negative ears 122 in this embodiment makes it easier to manage the positive ears 121 and the negative ears 122 separately.
  • the positive tab 121 located on the same side of the bare cell unit bar 111 can be directly pressed on the connection main body 112 for connection.
  • the connection can be made by directly pressing the negative electrode tab 122 on the same side of the bare cell unit bar 111 on the connecting body 112.
  • the orthographic projections of the plurality of positive tabs 121 on the connection main body 112 are overlapped, so the plurality of positive tabs 121 are pressed to the connection main body. 112 are connected to each other from time to time, thereby increasing the current path, thereby further reducing the internal resistance of the bare cell unit bar 111.
  • the orthographic projections of the plurality of negative lugs 122 on the connecting body 112 overlap. Therefore, the plurality of negative lugs 122 communicate with each other when they are press-fitted to the connection main body 112, thereby increasing the current path, thereby further reducing the internal resistance of the bare cell unit bar 111.
  • the tab 12 with a larger size can also be provided in the present disclosure.
  • the large tab 12 is more conducive to the location of the tab 12 in production, so that the bare cell After the unit bar 111 is wound on the connecting part, the large tabs 12 of each layer can have projection overlapping parts, so that the large tabs 12 of each layer can be connected to each other to increase the current after the large tabs 12 of each layer are pressed onto the connecting body 112. The path reduces the internal resistance of the bare cell unit bar 111.
  • the length of the tab 12 in the width direction of the connecting body 112 is greater than half of the width of the connecting body 112.
  • the material of the bare cell 11 itself can also be used to form the "tab 12".
  • a first conductive area and a first coating area are formed on the positive electrode sheet 131 of the bare cell unit bar 111; the first conductive area is located on one side of the positive electrode sheet 131 of the bare cell unit bar 111 and protrudes from The negative plate 133 and the isolation film 132 of the bare cell unit bar 111; the second conductive area and the second coating area are formed on the negative plate 133 of the bare cell unit bar 111; the second conductive area is located on the bare cell unit bar 111 One side of the negative electrode sheet 133 protrudes from the positive electrode sheet 131 and the isolation film 132 of the bare cell unit bar 111; the first conductive area and the second conductive area are electrically connected to the connecting body 112.
  • the positive electrode sheet 131 is an aluminum foil.
  • the corresponding first conductive area is reserved and coated in the first coating area.
  • the first conductive area can be directly exposed aluminum foil.
  • the negative electrode sheet 133 is a copper foil.
  • the corresponding second conductive area is reserved and coated in the second coating area.
  • the second conductive area can be a bare copper foil directly.
  • first coating areas can also be provided on both sides of the positive electrode sheet 131 to increase the coating amount of the positive electrode active material; similarly, the negative electrode sheet 133 can also be coated with first coating areas.
  • the second coating area is provided on both sides to increase the coating amount of the negative electrode active material.
  • the material of the bare cell 11 itself is used to form the "tab 12", which avoids welding the tab 12 on the bare cell 11, simplifies the production process, and improves the bare cell unit bar 111 and The stability of current conduction on the connection body 112.
  • the tab 12 and the bare cell unit strip 111 wound on the connecting section 1121 jointly form a cell unit. Therefore, the technical solution of the present disclosure is embodied in that a plurality of cell units form a cell unit group. Since there is a bendable section 1122 between each cell unit, the flexible cell 1 can be bendable. Since multiple cell units do not need to be connected in one step, they can be used in terminals with deformability.
  • the connecting body 112 is connected to the bare cell unit bar 111, so that the cell unit formed after the bare cell unit bar 111 is wound around the connecting section 1121 also forms a connection relationship based on the connecting body 112. Therefore, there is no need to further connect each cell unit, which effectively improves the space utilization rate in the cell, and facilitates generation and processing. Moreover, the cell units formed by each bare cell unit bar 111 are self-balanced by connecting the main body 112, thereby effectively reducing the difficulty and complexity of management between the cell units.
  • the tab 12 on the bare cell unit bar 111 by providing the tab 12 on the bare cell unit bar 111, the current on the bare cell unit bar 111 can be drawn from the tab 12 without moving along the bare cell unit bar 111 to the connecting body 112 And then flow out from the connecting body 112. Therefore, the problem of the increase of internal resistance caused by the small size of the bare cell unit bar 111 is effectively alleviated, and the problem of the increase of internal resistance caused by the size and winding of the bare cell unit bar 111 is effectively alleviated.
  • the flexible battery 1 of the present disclosure takes into account the advantages of flexibility and low impedance, and is beneficial to be applied in various flexible terminals.
  • the flexible battery 1 can be used in a terminal.
  • the flexible battery 1 is applied to some typical terminals as an example for description.
  • the terminal includes a terminal body and a flexible battery 1; the terminal body has a battery accommodating position, and the shape of the flexible battery 1 matches the shape of the battery accommodating position.
  • the terminal body includes a non-bendable part and a bendable part.
  • the non-bendable part is, for example, a hard display screen part
  • the bendable part is, for example, a wearing part, such as a headband. Since the flexible battery 1 has a variable shape and good bendability, it can be arranged in a non-bendable part and a bendable part.
  • the terminal only includes a bendable part, such as a mobile phone with a flexible screen.
  • the flexible battery 1 can be placed in such a mobile phone, and when the mobile phone is bent, the battery 1 can be bent along with it.
  • the terminal body includes a wearing part, and the wearing part is curved or bendable; the battery accommodating position is located in the wearing part, and the extending direction of the battery accommodating position corresponds to the shape of the wearing part.
  • the wearing part 21 is a headband of the electronic device.
  • the head-mounted electronic device may be VR, AR, headset, etc.
  • the wearing part is a wristband; the terminal with a wristband may be a smart watch, a smart bracelet, or the like.
  • the wearing part is the looped waist of the smart belt.
  • the smart waistband can automatically adjust the circumference according to the size change of the wearer's waist to ensure wearing comfort.
  • the flexible battery 1 in the above embodiment is used in the terminal to supply power to the terminal. Since the flexible battery 1 is flexible and can be arranged at the position where the terminal is bent, the flexible battery 1 is improved in this embodiment.
  • the flexible battery 1 can be arranged at the bending part and the non-bendable part of the terminal, the size of the flexible battery 1 can be increased to increase the number of the battery 1 of the flexible battery 1, thereby increasing the flexible battery
  • the power supply capability of Core 1 improves the endurance of the terminal.
  • the terminal of this embodiment has better flexibility in setting the position of the flexible battery 1 and better endurance.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

本公开提供了一种柔性电芯及终端。柔性电芯包括裸电芯、极耳；裸电芯包括连接主体以及裸电芯单元条，所述连接主体沿其自身延伸方向上分布有连接段和可弯折段，所述裸电芯单元条连接于所述连接段的一侧，且以所述连接段为轴环绕于所述连接段上；极耳连接于所述裸电芯单元条上。本公开的柔性电芯具有较好的形状变化灵活性。

Description

柔性电芯及终端
交叉引用
本公开要求于2019年11月25日提交的申请号为201911167891.9名称为“柔性电芯及终端”的中国专利申请的优先权，该中国专利申请的全部内容通过引用全部并入本文。
技术领域
本公开涉及电子设备领域，特别涉及一种柔性电芯及终端。
背景技术
移动电子设备现在越来越普及，用户对电子终端的要求也越来越高。智能终端，包括VR、AR、智能耳机、智能手环、穿戴手机等，这些智能终端可以相应通过头箍、腕带等佩戴于人体上，与用户之间进行更好的交互。
在这些形状需要变化的终端中，一般都是在某个区域放置一块供电模块比如电池。然而，随着用户对终端的显示性能、续航性能越来越重视，无疑对供电模块提出了更高的要求。
然而，相关技术中，锂离子电池由于结构限制，外壳刚硬，不能够随着终端的形状变化而变化，因此锂离子电池在终端内的设置位置受到极大限制，极大的限制了终端的智能化发展。
公开内容
本公开的一个目的在于提出一种可灵活变化形状的柔性电芯。
为解决上述技术问题，本公开采用如下技术方案：
根据本公开的一个方面，提供一种柔性电芯，柔性电芯包括：
裸电芯，包括连接主体以及裸电芯单元条，所述连接主体沿其自身延伸方向上分布有连接段和可弯折段，所述裸电芯单元条连接于所述连接段的一侧，且以所述连接段为轴环绕于所述连接段上；
极耳，连接于所述裸电芯单元条上。
根据本公开的一个方面，本公开提供一种终端，终端包括终端本体以及如所述的柔 性电芯；所述终端本体内具有电芯容置位，所述柔性电芯容置于所述电芯容置位内。
本公开中，极耳与绕设在连接段上的裸电芯单元条共同形成了一个电芯单元，因此本公开的技术方案体现为多个电芯单元形成了电芯单元组，各个电芯单元之间由于具有可弯折段，从而可以使柔性电芯可弯折。由于多个电芯单元之间无需进行一步进行连接，从而可以应用于具有变形能力的终端内。
并且，本实施例通过使连接主体与裸电芯单元条连接，从而使得裸电芯单元条绕设在连接段后所形成的电芯单元也基于连接主体而形成连接关系，从而无需进一步在各个电芯单元之间进行连接，有效的提高了电芯内的空间利用率，且便于生成加工。而且，各个裸电芯单元条所形成的电芯单元之间会通过连接主体而进行自我平衡，由此有效的降低了电芯单元之间管理的难度和复杂度。
进一步地，通过在裸电芯单元条上设置极耳，从而裸电芯单元条上的电流能够从极耳上引出，而不用沿着裸电芯单元条移动至连接主体上，再从连接主体上流出。因此有效的缓解了裸电芯单元条因尺寸较小而带来的内阻增加的问题，有效的缓解了因裸电芯单元条的尺寸和卷绕造成内阻增大的问题。
综上所述，本公开的柔性电芯兼顾了柔性和阻抗低的优点，有利于应用于各种可改变形状的终端内。
附图说明
图1是本公开一实施例的裸电芯的结构示意图；
图2是图1中裸电芯的组成结构分解示意图；
图3是本公开一实施例中极耳设置在裸电芯上的结构示意图；
图4是图3中的裸电芯单元条绕设在连接段上后的结构示意图；
图5是本公开另一实施例中极耳设置在裸电芯上的结构示意图；
图6是图5中的裸电芯单元条绕设在连接段上后的结构示意图；
图7是终端为头戴式电子设备的一实施例示意图。
附图标记说明如下：
1、柔性电芯；131、正极片；132、隔离膜；133、负极片；11、裸电芯112、连接主体；111、裸电芯单元条；1121、连接段；1122、可弯折段；12、极耳；121、正极耳；122、负极耳；13、总极耳；
2、终端；21、佩戴部。
具体实施方式
尽管本公开可以容易地表现为不同形式的实施方式，但在附图中示出并且在本说明书 中将详细说明的仅仅是其中一些具体实施方式，同时可以理解的是本说明书应视为是本公开原理的示范性说明，而并非旨在将本公开限制到在此所说明的那样。
由此，本说明书中所指出的一个特征将用于说明本公开的一个实施方式的其中一个特征，而不是暗示本公开的每个实施方式必须具有所说明的特征。此外，应当注意的是本说明书描述了许多特征。尽管某些特征可以组合在一起以示出可能的系统设计，但是这些特征也可用于其他的未明确说明的组合。由此，除非另有说明，所说明的组合并非旨在限制。
在附图所示的实施方式中，方向的指示(诸如上、下、左、右、前和后)用于解释本公开的各种元件的结构和运动不是绝对的而是相对的。当这些元件处于附图所示的位置时，这些说明是合适的。如果这些元件的位置的说明发生改变时，则这些方向的指示也相应地改变。
现在将参考附图更全面地描述示例实施方式。然而，示例实施方式能够以多种形式实施，且不应被理解为限于在此阐述的范例；相反，提供这些示例实施方式使得本公开的描述将更加全面和完整，并将示例实施方式的构思全面地传达给本领域的技术人员。附图仅为本公开的示意性图解，并非一定是按比例绘制。图中相同的附图标记表示相同或类似的部分，因而将省略对它们的重复描述。
以下结合本说明书的附图，对本公开的较佳实施方式予以进一步地详尽阐述。
本实施例所提出的柔性电芯以及一种终端。该终端是配置有电池供电系统的智能终端、移动终端设备，该终端包括但不限于被设置成经由有线线路连接，如经由公共交换电话网络(public switched telephone network，PSTN)、数字用户线路(digital subscriber line，DSL)、数字电缆、直接电缆连接，以及/或另一数据连接/网络和/或经由例如，针对蜂窝网络、无线局域网(wireless local area network，WLAN)、诸如手持数字视频广播(digital video broadcasting handheld，DVB-H)网络的数字电视网络、卫星网络、调幅-调频(amplitu demodulation-frequency modulation，AM-FM)广播发送器，以及/或另一通信终端的无线接口接收/发送通信信号的装置。被设置成通过无线接口通信的通信终端可以被称为“无线通信终端”、“无线终端”以及/或“智能终端”。智能终端的示例包括，但不限于卫星或蜂窝电话；可以组合蜂窝无线电电话与数据处理、传真以及数据通信能力的个人通信系统(personal communication system，PCS)终端；可以包括无线电电话、寻呼机、因特网/内联网接入、Web浏览器、记事簿、日历以及/或全球定位系统(global positioning system，GPS)接收器的个人数字助理(Personal Digital Assistant，PDA)；以及常规膝上型和/或掌上型接收器或包括无线电电话收发器的其它电子装置。此外，该终端还可以包括但不限于诸如电子书阅读器、智能穿戴设备、移动电源(如充电宝、旅充)、电子烟、无线鼠标、无线键盘、无线耳机、蓝牙音箱等具有充电功能的可充电电子设备。
本实施例提出柔性电芯1，能够用于可改变形状的终端内，以能够跟随终端的形状变化而相应改变形状，在为终端提供电能的同时，具有较好的形状变化灵活性。在以下实施 例中，对柔性电芯1的具体实施例进行阐述。
请参阅图1。图1是本公开一实施例的裸电芯的结构示意图。本实施例中的柔性电芯1，包括裸电芯11和极耳12。裸电芯11包括连接主体112以及裸电芯单元条111，连接主体112沿其自身延伸方向上分布有连接段1121和可弯折段1122，裸电芯单元条111连接于连接段1121的一侧，且以连接段1121为轴环绕于连接段1121上；图1中为了清楚地示出裸电芯11的结构，将裸电芯单元条111以未卷绕的形式进行示出。请一并参阅图3，极耳12连接于裸电芯单元条111上。
在一实施例中，柔性电芯1包括电芯以及电池保护板。电芯即包括裸电芯11和极耳12。请参阅图2。裸电芯11包括依次层叠的正极片131、隔离膜132、负极片133。隔离膜132夹设于正极片131和负极片133之间。正极片131、隔离膜132、负极片133可以作为一组，裸电芯11可以包括多组正极片131、隔离膜132、负极片133。
在此，正极片131可以是表面涂布有正极活性物质的铝箔。负极片133可以是表面涂布有负极活性物质的铜箔。
可理解的是，裸电芯11呈片状，其形状可以是呈长方形、正方形、圆形、椭圆形等；也可以是不规则的。
裸电芯11上形成有连接主体112与裸电芯单元条111。在此是指裸电芯11整体上包括有连接主体112和裸电芯单元条111，因此连接主体112和裸电芯单元条111具有与上述实施例中正极片131、隔离膜132、负极片133对应的正极片131层、隔离膜132层、负极片133层。
连接主体112上分成有连接段1121和可弯折段1122。在一实施例中，连接主体112呈长条形，连接段1121和可弯折段1122沿连接主体112的延伸方向上排布。在一示例中，连接段1121和可弯折段1122交替设置，可弯折段1122位于相邻两连接段1121之间。可以理解的是，根据连接主体112的形状不同，连接段1121和可弯折段1122的分布也有不同。
可弯折段1122使得本公开的电芯具有柔性。即电芯能够从可弯折段1122出进行弯折，从而实现柔性的效果。连接段1121和可弯折段1122可以是相同的材质，也可以是不同的材质。例如可弯折段1122可以选择软性的材质，从而便于弯折。在一实施例中，可弯折段1122和连接段1121是同样的材质，由此可以使电流更好的在连接主体112上进行传导。可弯折段1122上由于没有裸电芯单元条111的包裹，从而能够具有更好的弯折性能。
连接段1121用于与裸电芯单元条111进行连接。在一示例中，连接段1121与裸电芯单元条111的一端连接，进而裸电芯单元条111的另一端以连接段1121为轴环绕，从而包裹连接段1121。在本示例中，连接段1121的宽度与裸电芯单元条111的宽度大致相同。
在另一示例中，连接段1121与裸电芯单元条111中部的某处连接，裸电芯单元条111的两端分别朝相反的方向以连接段1121为轴绕设在连接段1121上。在本示例中，连接段1121的宽度大于裸电芯单元条111的宽度。
连接段1121与裸电芯单元条111可以是两个部件，而后通过连接手段进行连接。例如通过焊接、导电胶粘接等。
在一实施例中，连接段1121与裸电芯11单元为一体成型，从而保证电流自裸电芯单元条111与连接段1121之间传导的稳定性，且提高裸电芯11的结构稳定性。在一示例中，通过直接在裸电芯11上进行裁剪，以形成连接主体112以及裸电芯单元条111。请参阅图，可以按照图，所示的形状进行裁切。裁切后的裸电芯单元条111可以环绕在其所对应的连接段1121上。
裸电芯单元条111的数量在此不做具体限定，可以是两条，也可以是多条。对应的连接主体112上连接段1121的数量也是不限定的。每裸电芯单元条111对应连接于一连接段1121上，相邻两裸电芯单元条111沿连接主体112的延伸方向上具有间隔。可选的，该间隔的宽度与可弯折段1122的宽度对应。在一示例中，该间隔可选为1-50mm。
在一实施例中，多个裸电芯单元条111位于连接主体112的同一侧。因此连接主体112上对应位于连接主体112的一侧。在裁剪过程中，可以沿一整张方形的裸电芯11中部切割，从而形成两个本公开中的裸电芯11形状，有效的避免了材料的浪费。当然，多个裸电芯单元条111也可以位于连接主体112的相对的两侧。
对比相关技术中，多个电池单元通过串并联连接以形成柔性电池的方案中，多个电池单元进行连接的会增加电池间空间利用率低的情况，从而会使电池的整体能量密度降低。本实施例通过使连接主体112与裸电芯单元条111一体成型，从而使得裸电芯单元条111绕设在连接段1121后所形成的电芯单元也基于连接主体112而形成连接关系，从而无需进一步在各个电芯单元之间进行连接，有效的提高了电芯内的空间利用率，且便于生成加工。
并且，在相关技术中，多个电池电源串并联连接时增加电池管理的难度，电池单体数量越多，电池的管理就会越复杂，比如电池间的均衡管理，当出现电池间状态不一致时就需要通过外部均衡来尽量维持电池的状态，然而增加均衡电路同样会增加生产成本，同时还要在装机前对电芯单体进行筛选。本实施例中，由于裸电芯单元条111通过连接主体112而成为一体，各个裸电芯单元条111所形成的电芯单元之间会通过连接主体112而进行自我平衡，由此有效的降低了电芯单元之间管理的难度和复杂度。
进一步的，相关技术中，因为多个电芯单体需要对每个电芯进行独立包装，这样每个电芯都需要增加独立的铝塑膜外包装，增加了电池带的总重量。此外，为了能够将多个电芯连接得到电池带，必须要有载体进行连接，因此也会增加电池带的整体重量。这些都会影响到用户的穿戴体验效果。本实施方式中，由于各个电芯单元之间无需进行隔离以及相互连接，因此仅需要对柔性电芯1整体进行包装即可，从而有效的降低了柔性电芯1的重量，提高了应用于各种终端设备上的便利程度。
本实施例中，极耳12是单独连接于裸电芯单元条111上。极耳12分为正极耳121和负极耳122，正极耳121连接于裸电芯单元条111的正极片131上，从而将正极片131上 的电流导出。负极耳122连接于裸电芯单元条111的负极片133上，从而将负极片133上的电流导出。
在一实施例中，柔性电芯1还包括总极耳13，总极耳13连接于所述连接主体112上。总极耳13的设置能够便于柔性电芯1与外部单元的连接。极耳12的一端与裸电芯单元条111连接，另一端可以直接与总极耳13连接；或者极耳12的另一端连接至连接主体112上，以使每个裸电芯单元条111上的电流汇集至连接主体112上，进而再从总极耳13上导出。总极耳13可以设置在连接主体112的同一侧，也可以设置在不同的两侧。
在另一示例中，每个裸电芯单元条111上的极耳12可以直接连接至电池保护板上，从而进一步减小电流流经的路径。
在上述实施例中，裸电芯单元条111上的电流能够从极耳12上引出，而不用沿着裸电芯单元条111移动至连接主体112上，再从连接主体112上流出。因此有效的缓解了裸电芯单元条111因尺寸较小而带来的内阻增加的问题。
在一实施例中，每个裸电芯单元条111上对应设置一个正极耳121和一个负极耳122。正极耳121和负极耳122在裸电芯单元条111上的连接位置不做限定。
为了进一步减小裸电芯单元条111上的内阻。在另一实施例中，设置每个裸电芯单元条111上对应设置至少两个正极耳121和至少两个负极耳122。具体的，裸电芯单元条111以连接段1121为轴环绕多圈，每圈裸电芯单元条111的正极片131上对应连接有正极耳121，每圈裸电芯单元条111的负极片133上对应连接有负极耳122。由此每圈裸电芯单元条111上产生的电流都能够及时的从极耳12引出，进一步减小了裸电芯单元条111的内阻，从而减小了裸电芯单元条111的发热量，提高了柔性电芯1的使用安全性。
请参阅图3和图4，正极耳121和负极耳122可以均设置在裸电芯单元条111的同一侧。或者裸电芯单元条111的每一侧均设置有正极耳121和负极耳122。
请参阅图5和图6。进一步的，为了便于极耳12与连接主体112之间的连接，裸电芯单元条111在沿连接主体112延伸方向上的两侧部分别为第一侧部和第二侧部；正极耳121均位于裸电芯单元条111的第一侧部，负极耳122均位于裸电芯单元条111的第二侧部。可以理解的是，正极耳121、负极耳122的设置位置可以对调。例如正极耳121均位于裸电芯单元条111的第二侧部，负极耳122均位于裸电芯单元条111的第一侧部。
该实施例中正、负极耳122的设置方式更加便于对正极耳121和负极耳122进行分别管理。在连接极耳12与连接主体112时，通过将位于裸电芯单元条111同一侧的正极耳121直接压在连接主体112上进行连接即可。相应的，通过将位于裸电芯单元条111同一侧的负极耳122直接压在连接主体112上进行连接即可。
进一步的，为了方便极耳12与连接主体112的连接，在一实施例中，设置多个正极耳121在连接主体112上的正投影重叠，因此多个正极耳121在被压合到连接主体112上时而彼此连通，由此增大了电流通路，从而进一步减小了裸电芯单元条111的内阻。同样的，多个负极耳122在连接主体112上的正投影重叠。因此多个负极耳122在被压合到连 接主体112上时而彼此连通，由此增大了电流通路，从而进一步减小了裸电芯单元条111的内阻。
为了进一步减小裸电芯单元条111上的内阻，本公开中还可用设置尺寸较大的极耳12，大尺寸极耳12更加有利于生产中设置极耳12的位置，使得裸电芯单元条111绕设在连接部上后，各层的大极耳12能够有投影重叠部位，从而在各层的大极耳12在压合到连接主体112上后，能够彼此连通以增大电流通路，减小裸电芯单元条111的内阻。
在一示例中，极耳12在沿连接主体112宽度方向上的长度大于连接主体112的宽度的二分之一。
在另一实施方式中，还可以利用裸电芯11自身的材质，以形成“极耳12”。具体的，裸电芯单元条111的正极片131上形成有第一导电区以及第一涂布区；第一导电区位于裸电芯单元条111正极片131的一侧部，且凸伸于裸电芯单元条111的负极片133与隔离膜132；裸电芯单元条111的负极片133上形成有第二导电区以及第二涂布区；第二导电区位于裸电芯单元条111负极片133的一侧部，且凸伸于裸电芯单元条111的正极片131与隔离膜132；第一导电区和第二导电区均电连接于连接主体112上。
示意性的，正极片131是铝箔，在对铝箔进行涂布正极活性材料时，留出相应的第一导电区，在第一涂布区内涂。第一导电区在此可以直接是裸露的铝箔。负极片133是铜箔，在对铜箔进行涂布负极活性材料时，留出相应的第二导电区，在第二涂布区内涂。第二导电区在此可以直接是裸露的铜箔。
并且，为了提高本公开柔性电池的能量密度，还可以在正极片131的正反两面均设置第一涂布区，以提高正极活性材料的涂布量；同样的，还可以在负极片133的正反两面均设置第二涂布区，以提高负极活性材料的涂布量。
本实施例中，利用裸电芯11自身的材质，以形成“极耳12”，避免了在裸电芯11上焊接极耳12，简化了生产过程，且提高了裸电芯单元条111与连接主体112上电流传导的稳定性。
本公开中，极耳12与绕设在连接段1121上的裸电芯单元条111共同形成了一个电芯单元，因此本公开的技术方案体现为多个电芯单元形成了电芯单元组，各个电芯单元之间由于具有可弯折段1122，从而可以使柔性电芯1可弯折。由于多个电芯单元之间无需进行一步进行连接，从而可以应用于具有变形能力的终端内。
并且，本实施例通过使连接主体112与裸电芯单元条111连接，从而使得裸电芯单元条111绕设在连接段1121后所形成的电芯单元也基于连接主体112而形成连接关系，从而无需进一步在各个电芯单元之间进行连接，有效的提高了电芯内的空间利用率，且便于生成加工。而且，各个裸电芯单元条111所形成的电芯单元之间会通过连接主体112而进行自我平衡，由此有效的降低了电芯单元之间管理的难度和复杂度。
进一步地，通过在裸电芯单元条111上设置极耳12，从而裸电芯单元条111上的电流能够从极耳12上引出，而不用沿着裸电芯单元条111移动至连接主体112上，再从连 接主体112上流出。因此有效的缓解了裸电芯单元条111因尺寸较小而带来的内阻增加的问题，有效的缓解了因裸电芯单元条111的尺寸和卷绕造成内阻增大的问题。
综上，本公开的柔性电芯1兼顾了柔性和阻抗低的优点，有利于应用于各种柔性的终端内。
在上述实施例中提到柔性电芯1可以用于终端中。在以下实施例中，以柔性电芯1应用于一些典型的终端为例进行说明。
在一实施例中，终端包括终端本体以及柔性电芯1；终端本体内具有电芯容置位，柔性电芯1的形状与电芯容置位的形状相适配。在一示例中，终端本体包括不可弯折的部分以及可弯折的部分。不可弯折的部分例如为硬质显示屏部分，可弯折部分例如为佩戴部，例如头箍等。而柔性电芯1由于其形状可变，弯折性较好，因此可以设置在不可弯折的部分以及可弯折的部分。
当然，在一些实施例中，终端仅仅包括可弯折部分，例如具有柔性屏的手机。此时柔性电芯1可以设置此类手机内，当手机弯折时，电芯1可以随之一同进行弯折。
在本实施例中，终端本体包括佩戴部，佩戴部呈弯曲状或可弯曲；电芯容置位位于佩戴部内，且电芯容置位的延伸方向与佩戴部形状对应。
在一示例中，请参阅图7，当终端2为头戴式电子设备时，佩戴部21为电子设备的头箍。头戴式电子设备可以为VR、AR、头戴式耳机等。
在另一示例中，当终端为具有腕带的终端时，佩戴部为腕带；具有腕带的终端可以是智能手表、智能手环等。
在另一示例中，当终端为智能腰带时，佩戴部为智能腰带的环腰部。该智能腰带能够根据佩戴者腰围的尺寸变化而自动调节围度，以保证佩戴舒适性。
本实施例通过利用上述实施例中的柔性电芯1用于终端内以为终端供电，由于柔性电芯1具有柔性而能够设置在终端发生弯折的部位，因此本实施例提高了柔性电芯1设置位置的灵活性；
并且，由于柔性电芯1均可以设置在终端的弯折部位和不可弯折部位，因此可以增大柔性电芯1的尺寸，以增大柔性电芯1的电芯1数量，从而提高柔性电芯1的供电能力，使得终端的续航能力得以提高。
因此，本实施例的终端具有较好的柔性电芯1位置设置的灵活性以及较优的续航能力。
虽然已参照几个典型实施方式描述了本公开，但应当理解，所用的术语是说明和示例性、而非限制性的术语。由于本公开能够以多种形式具体实施而不脱离发明的精神或实质，所以应当理解，上述实施方式不限于任何前述的细节，而应在随附权利要求所限定的精神和范围内广泛地解释，因此落入权利要求或其等效范围内的全部变化和改型都应为随附权利要求所涵盖。

Claims (20)

  1. 一种柔性电芯，其特征在于，包括：
    裸电芯，包括连接主体以及裸电芯单元条，所述连接主体沿其自身延伸方向上分布有连接段和可弯折段，所述裸电芯单元条连接于所述连接段的一侧，且以所述连接段为轴环绕于所述连接段上；
    极耳，连接于所述裸电芯单元条上。
  2. 根据权利要求1所述的柔性电芯，其特征在于，所述连接主体上具有至少两个所述连接段，所述可弯折段位于相邻两所述连接段之间；
    所述裸电芯单元条至少有两条，每个所述裸电芯单元条连接于一所述连接段上，相邻两所述裸电芯单元条沿所述连接主体的延伸方向上具有间隔。
  3. 根据权利要求2所述的柔性电芯，其特征在于，所述间隔的宽度与所述可弯折段的宽度对应。
  4. 根据权利要求2所述的柔性电芯，其特征在于，多个所述裸电芯单元条位于所述连接主体的同一侧。
  5. 根据权利要求2所述的柔性电芯，其特征在于，多个所述裸电芯单元条位于所述连接主体的相对的两侧。
  6. 根据权利要求1所述的柔性电芯，其特征在于，所述连接主体与所述裸电芯单元条一体成型。
  7. 根据权利要求1所述的柔性电芯，其特征在于，所述裸电芯包括依次层叠的正极片、隔离膜、负极片；所述极耳分为正极耳和负极耳；所述正极耳连接于所述正极片上，所述负极耳连接于所述负极片上；
    所述裸电芯单元条以所述连接段为轴环绕多圈，每圈所述裸电芯单元条的正极片上对应连接有所述正极耳，每圈所述裸电芯单元条的负极片上对应连接有所述负极耳。
  8. 根据权利要求7所述的柔性电芯，其特征在于，所述裸电芯单元条在沿所述连接主体延伸方向上的两侧部分别为第一侧部和第二侧部；
    所述正极耳均位于所述裸电芯单元条的第一侧部，所述负极耳均位于所述裸电芯单元条的第二侧部。
  9. 根据权利要求7所述的柔性电芯，其特征在于，所述正极耳和所述负极耳均设置在所述裸电芯单元条的同一侧。
  10. 根据权利要求7所述的柔性电芯，其特征在于，所述裸电芯包括一组或多组正极片、隔离膜、负极片。
  11. 根据权利要求7所述的柔性电芯，所述正极片为表面涂布有正极活性物质的铝箔。
  12. 根据权利要求7所述的柔性电芯，所述负极片为表面涂布有负极活性物质的铜箔。
  13. 根据权利要求8所述的柔性电芯，其特征在于，多个所述正极耳在所述连接主体上的正投影重叠；多个所述负极耳在所述连接主体上的正投影重叠。
  14. 根据权利要求1所述的柔性电芯，其特征在于，所述柔性电芯还包括总极耳，所述总极耳连接于所述连接主体上；
    所述极耳的一端与所述裸电芯单元条连接，另一端与所述总极耳连接。
  15. 根据权利要求1至14任意一项所述的柔性电芯，其特征在于，所述连接主体呈长条状，所述极耳在沿所述连接主体宽度方向上的长度大于所述连接主体的宽度的二分之一。
  16. 根据权利要求7至14任意一项所述的柔性电芯，其特征在于，所述裸电芯单元条的正极片上形成有第一导电区以及第一涂布区；所述第一导电区位于所述裸电芯单元条正极片的一侧部，且凸伸于所述裸电芯单元条的负极片与隔离膜；
    所述裸电芯单元条的负极片上形成有第二导电区以及第二涂布区；所述第二导电区位于所述裸电芯单元条负极片的一侧部，且凸伸于所述裸电芯单元条的正极片与隔离膜；
    所述第一导电区作为所述正极耳，所述第二导电区作为所述负极耳，所述第一导电区和所述第二导电区均电连接于所述连接主体上。
  17. 根据权利要求16所述的柔性电芯，其特征在于，所述正极片的正反两面均设置所述第一涂布区；所述负极面的正反两面均设置第二涂布区。
  18. 一种终端，其特征在于，包括终端本体以及如权利要求1至10任意一项所述的柔性电芯；所述终端本体内具有电芯容置位，所述柔性电芯容置于所述电芯容置位内。
  19. 根据权利要求18所述的终端，其特征在于，所述终端本体包括佩戴部，所述佩戴部呈弯曲状或可弯曲；
    所述电芯容置位位于所述佩戴部内，且所述电芯容置位的延伸方向与所述佩戴部形状对应。
  20. 根据权利要求19所述的终端，其特征在于，
    当所述终端为头戴式电子设备时，所述佩戴部为电子设备的头箍；
    当所述终端为带有腕带的智能设备时，所述佩戴部为所述腕带；
    当所述终端为智能腰带时，所述佩戴部为所述智能腰带的环腰部。
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