WO2017071288A1 - 电池电芯 - Google Patents

电池电芯 Download PDF

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Publication number
WO2017071288A1
WO2017071288A1 PCT/CN2016/088422 CN2016088422W WO2017071288A1 WO 2017071288 A1 WO2017071288 A1 WO 2017071288A1 CN 2016088422 W CN2016088422 W CN 2016088422W WO 2017071288 A1 WO2017071288 A1 WO 2017071288A1
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WO
WIPO (PCT)
Prior art keywords
terminal
positive
negative
battery cell
electrode
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2016/088422
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English (en)
French (fr)
Inventor
孔繁博
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
Original Assignee
Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
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Application filed by Le Holdings Beijing Co Ltd, Lemobile Information Technology (Beijing) Co Ltd filed Critical Le Holdings Beijing Co Ltd
Publication of WO2017071288A1 publication Critical patent/WO2017071288A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/176—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for prismatic or rectangular cells
    • 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
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • 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
    • H01M50/543—Terminals
    • H01M50/562—Terminals characterised by the material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
    • 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 application relates to the field of mobile terminal technologies, and in particular, to a battery cell.
  • FIG. 1 is a schematic view showing the structure of a battery cell of a lithium ion battery used in a conventional terminal.
  • the electrode lead terminals of the existing battery cells are a pair, specifically including a positive terminal 101 and a negative terminal 102. Both battery charging and discharging require the battery terminals to enter and exit through the pair of electrode terminals. Since the battery cell contains a fixed position of the electrode lead-out terminal, after the battery cell is packaged, the connection position of the battery is relatively fixed.
  • the battery cell electrode is preferably as close as possible to the charging port.
  • the terminal fast charging language widely used is a three-stage design, that is, the center of the terminal is a charging port, the middle is a battery containing a battery cell, and the top is a terminal motherboard.
  • the embodiment of the present application provides a battery cell to solve the problem that the existing battery cell needs to be connected by using the FPC and the charging port of the terminal or the main board.
  • a battery cell comprising: a first electrode lead terminal pair and a second electrode lead terminal pair; wherein the first electrode lead terminal pair includes a first positive terminal and a first negative a terminal, the second electrode lead terminal pair includes a second positive terminal and a second negative terminal The first positive terminal is disposed side by side with the first negative terminal, and the second positive terminal is disposed side by side with the second negative terminal; the first positive terminal is opposite to the second positive terminal, The first negative terminal is disposed opposite to the second negative terminal.
  • the battery cell provided in the embodiment of the present application includes two pairs of electrode lead terminals, and the two pairs of electronic lead terminals are oppositely disposed.
  • the pair of electrode lead terminals are close to the charging port at the center of the bottom of the terminal, and the other pair of electrode lead terminals opposite to the pair of electrode lead terminals are close to the main board at the top of the terminal, the charging port of the terminal, and the main board.
  • the electrodes that are close to the battery cells ie, the positive terminal and the negative terminal
  • the battery cells provided by the embodiments of the present application can avoid a series of problems caused by the need to use the FPC to connect the charging port or the main board to the electrodes of the battery cells in the prior art solution. Such as: increase the terminal production cost, increase the charging path impedance or increase the line loss and ultimately affect the fast charging efficiency.
  • FIG. 1 is a schematic structural view of a conventional battery cell
  • FIG. 2 is a schematic structural view of a battery cell according to Embodiment 1 of the present application.
  • FIG. 3 is a schematic diagram of connection of a battery cell in a terminal according to Embodiment 2 of the present application;
  • FIG. 4 is a schematic view showing the structure of a positive electrode of a battery cell in the second embodiment
  • FIG. 5 is a schematic view showing the structure of a negative electrode of a battery cell in the second embodiment.
  • FIG. 2 a schematic structural view of a battery cell according to Embodiment 1 of the present application is shown.
  • the battery cell of the embodiment of the present application includes: a bidirectional lead terminal, that is, a pair of first electrode lead terminals and a pair of second electrode lead terminals.
  • the first electrode lead terminal pair includes a first positive terminal 201 and a first negative terminal 202
  • the second electrode lead terminal pair includes a second positive terminal 203 and a second negative terminal 204.
  • the first positive terminal 201 and the first negative terminal 202 are arranged side by side, the second positive terminal 203 and the second negative terminal 204 are arranged side by side; the first positive terminal 201 is opposite to the second positive terminal 203, and the first negative terminal 202 and the second The negative terminals 204 are oppositely arranged.
  • the battery cell provided by the embodiment of the present application can be connected to the charging port of the terminal by using a pair of electrode lead terminals in one direction as a quick charging terminal, and the other pair of electrode lead terminals are connected as a normal charging and discharging terminal to be used in actual use.
  • a pair of electrode lead terminals in one direction as a quick charging terminal
  • the other pair of electrode lead terminals are connected as a normal charging and discharging terminal to be used in actual use.
  • the battery cell provided in the embodiment of the present application includes two pairs of electrode lead terminals, and the two pairs of electronic lead terminals are oppositely disposed.
  • the pair of electrode lead terminals are close to the charging port at the center of the bottom of the terminal, and the other pair of electrode lead terminals opposite to the pair of electrode lead terminals are close to the main board at the top of the terminal, the charging port of the terminal, and the main board.
  • the electrodes that are close to the battery cells ie, the positive terminal and the negative terminal
  • FIG. 3 a schematic diagram of the connection of the battery cells in the terminal of the second embodiment of the present application is shown.
  • the battery cell in the embodiment of the present application has the same structure of the battery cell in the first embodiment, and also includes a bidirectional extraction terminal, that is, a pair of the first electrode extraction terminal and a pair of the second electrode extraction terminal.
  • the first electrode lead terminal pair includes a first positive terminal and a first negative terminal
  • the second electrode lead terminal pair includes a second positive terminal and a second negative terminal.
  • the first positive terminal and the first negative terminal are arranged side by side
  • the second positive terminal and the second negative terminal 204 are arranged side by side;
  • the first positive terminal 201 is opposite to the second positive terminal 203, and the first negative terminal 202 and the second negative terminal 204 are opposite to each other. Relative settings.
  • a pair of electrode lead terminals in the same direction can be used as a quick charging terminal, and another pair of electrode lead terminals in the same direction can be used as a normal charging and discharging terminal.
  • the specific connection relationship between the battery cell and the terminal motherboard and the charging port of the terminal is shown in FIG.
  • the first electrode lead-out terminal of the battery cell is used as a quick-charge terminal, and the first electrode lead-out terminal pair opposite thereto is used as a normal charge and discharge terminal.
  • the first electrode lead terminal pair ie, the quick charging terminal
  • the second electrode lead terminal pair ie, the normal charging and discharging terminal
  • connection method satisfies the fact that the electrode of the cell is close to the charging port and the discharge port is close to the main board, and the FPC is not required to connect the cell electrode with the terminal charging port or the main board, thereby reducing the impedance of the charging and discharging circuit and saving.
  • the effect of power transfer FPC is not required to connect the cell electrode with the terminal charging port or the main board, thereby reducing the impedance of the charging and discharging circuit and saving.
  • the fast charge and discharge circuit is disposed in the interposer. Therefore, in FIG. 3, the first electrode lead-out terminal is connected to the charging port of the terminal through the interposer.
  • the second electrode lead terminal pair of the battery cell in the embodiment is a normal charge and discharge terminal, and only serves as a discharge terminal of the battery cell when the battery is quickly charged. When the battery is normally charged, it is used as a normal charging terminal to charge current into the battery, and as a discharge terminal to supply power to the main board.
  • the battery cell includes, in addition to the first positive terminal, the second positive terminal, the first negative terminal and the second negative terminal, a positive electrode material, a positive electrode substrate connected to the positive electrode material, a negative electrode material, and a negative electrode material.
  • a negative electrode substrate is provided.
  • the first positive terminal and the second positive terminal are positive current collectors of the positive electrode of the battery, and the first negative terminal and the second negative terminal are negative current collectors of the negative electrode of the battery.
  • the positive electrode structure of the battery cell is shown in FIG.
  • the positive electrode substrate 401 is connected to the positive electrode material 402, and the first positive terminal 403 and the second positive terminal 404 are integrally formed as a positive current collector, welded on the positive electrode substrate 401, and both ends of the positive electrode current collector. They are all away from the positive electrode substrate 401.
  • the positive electrode current collectors are respectively spaced apart from the two ends of the positive electrode current collector by a predetermined distance range, and are wound with a high temperature tape 405.
  • the purpose of winding the high temperature tape at both ends of the positive electrode current collector is to prevent a short circuit between the positive electrode current collector and the negative electrode current collector during the winding process.
  • the preset distance range can be set by a person skilled in the art according to actual needs. For example, if the positive electrode current collector that is not combined with the positive electrode base is reserved, the high temperature adhesive tape is wound around the set region at both ends; or, after the positive electrode current collector is reserved for the set region at both ends, The positive electrode base portion is wound around the high temperature tape, and the superposed portion and the positive current collector portion not occupied by the solder joint are wound around the high temperature tape.
  • the material of the positive electrode current collector is aluminum, and the material of the positive electrode base material is aluminum foil, because the aluminum and the aluminum foil are easy to be connected during welding and have good stability.
  • the material of the positive current collector is aluminum, the first positive terminal and the second positive terminal may be disposed as a whole aluminum strip as a positive current collector.
  • Figure 5 shows the negative electrode structure of the battery cell.
  • the negative electrode substrate 501 is connected to the negative electrode material 502, and the first negative terminal 503 and the second negative terminal 504 are integrally formed as a negative electrode current collector on the negative electrode substrate. And both ends of the anode current collector are away from the anode substrate.
  • the negative electrode current collectors are respectively spaced apart from the two ends of the negative electrode current collector by a predetermined distance range portion, and the high temperature adhesive tape 505 is wound.
  • the purpose of winding the high temperature tape at both ends of the anode current collector is to prevent a short circuit between the cathode current collector and the anode current collector during the winding process.
  • the preset distance range can be set by a person skilled in the art according to actual needs, and the winding manner can avoid the short circuit between the positive current collector and the negative current collector during the winding process of the battery core, in this embodiment This is not specifically limited.
  • the material of the negative electrode current collector is nickel, and the material of the negative electrode base material is copper foil, because the nickel and the copper foil are easily connected during welding and have good stability.
  • the material of the anode current collector is nickel, the first negative terminal and the second negative terminal may be disposed as a whole nickel strip as the anode current collector.
  • first positive terminal and the second positive terminal may be integrated, and the first negative terminal and the second negative terminal may be integrated.
  • first positive terminal and the second positive terminal may be separately disposed, and the first negative terminal and the second negative terminal are separately set, and the specific setting manner is as follows:
  • the first positive terminal and the second positive terminal are also positive current collectors, and two aluminum strips can be selected as the first positive terminal and the second positive terminal, respectively.
  • the second terminal and the second terminal are also negative current collectors, and two nickel strips can be selected as the first negative terminal and the second negative terminal, respectively.
  • Winding the high temperature tape on the first positive terminal, the second positive terminal, the first negative terminal, and the second negative terminal is also for avoiding a short circuit between the positive current collector and the negative current collector during the winding process.
  • the preset distance range can be set by a person skilled in the art according to actual needs, and the winding manner can avoid the short circuit between the positive current collector and the negative current collector during the winding process, which is in this embodiment. No specific limitation.
  • the battery cell provided in the embodiment of the present application includes two pairs of electrode lead terminals, and the two pairs of electronic lead terminals are oppositely disposed.
  • the pair of electrode lead terminals are close to the charging port at the center of the bottom of the terminal, and the other pair of electrode lead terminals opposite to the pair of electrode lead terminals are close to the main board at the top of the terminal, the charging port of the terminal, and the main board.
  • the electrodes that are close to the battery cells ie, the positive terminal and the negative terminal
  • the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may be or The person may not be a physical unit, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. Those of ordinary skill in the art can understand and implement without deliberate labor.

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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)
  • Materials Engineering (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种电池电芯，包括：第一电极引出端子对以及第二电极引出端子对；其中，所述第一电极引出端子对包括第一正端子（201）和第一负端子（202），所述第二电极引出端子对包括第二正端子（203）和第二负端子（204）；所述第一正端子（201）与所述第一负端子（202）并排设置，所述第二正端子（203）与所述第二负端子（204）并排设置；所述第一正端子（201）与所述第二正端子（203）相对设置，所述第一负端子（202）与所述第二负端子（204）相对设置。通过该电池电芯，能够避免现有的技术方案中存在的因需要采用FPC将充电端口或主板与电池电芯的电极进行连接而带来的一系列问题。

Description

电池电芯 技术领域
本申请涉及移动终端技术领域，特别是涉及一种电池电芯。
背景技术
附图1为现有的终端上使用的锂离子电池的电芯的结构图示意图。如图1所示，现有的电池电芯的电极引出端子为一对，具体包括一个正端子101，一个负端子102。电池电芯充电和放电均需要通过这一对电极引出端子进出电池电芯。由于电池电芯包含的电极引出端子位置固定，因此，将电池电芯封装后，电池的连接位置也相对固定。
目前快速充电已成为对终端的普遍需求，而快速充电要求充电通路阻抗尽可能小，电池电芯电极最好尽可能靠近充电端口，放电时，为了降低线路损耗又要求电池电芯电极靠近终端主板。目前广泛采用的终端快速充电语言为三段式设计，即终端底部中央为充电端口，中间为包含电池电芯的电池，顶部为终端主板。
综合现有的电池电芯的一对电极引出端子的结构、以及现有的终端快速充电语言的三段式设计，可知，目前无法实现电芯电极既靠近充电端口又靠近终端主板的双重要求。必须有一个方向(充电端口方向或终端主板方向)需要采用FPC(Flexible Printed Circuit，柔性电路板)将电子引出后进行连接。采用FPC不仅会增加成本，还会增加充电通路阻抗或者增加线路损耗，最终影响快速充电效率。
发明内容
本申请实施例提供了一种电池电芯，以解决现有的电池电芯需要采用FPC与终端的充电端口或主板进行连接的问题。
为了解决上述问题，本申请公开了一种电池电芯，包括：第一电极引出端子对以及第二电极引出端子对；其中，所述第一电极引出端子对包括第一正端子和第一负端子，所述第二电极引出端子对包括第二正端子和第二负端 子；所述第一正端子与所述第一负端子并排设置，所述第二正端子与所述第二负端子并排设置；所述第一正端子与所述第二正端子相对设置，所述第一负端子与所述第二负端子相对设置。
本申请实施例提供的电池电芯，包含两对电极引出端子，这两对电子引出端子相对设置。电池电芯安装在终端中时，其中一对电极引出端子靠近终端底部中央的充电端口，与该对电极引出端子相对的另一对电极引出端子则靠近终端顶部的主板，终端的充电端口以及主板均可靠近电池电芯的电极(即正端子、负端子)就近连接，无需采用FPC进行连接。因此，采用本申请实施例提供的电池电芯，能够避免现有的技术方案中存在的因需要采用FPC将充电端口或主板与电池电芯的电极进行连接而带来的一系列问题。如：增加终端制作成本，增加充电通路阻抗或者增加线路损耗最终影响快速充电效率的问题。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是现有的电池电芯的结构示意图；
图2是根据本申请实施例一的一种电池电芯的结构示意图；
图3是根据本申请实施例二的电池电芯在终端中的连接示意图；
图4是实施例二中的电池电芯的正极结构示意图；
图5是实施例二中的电池电芯的负极结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
实施例一
参照图2，示出了本申请实施例一的一种电池电芯的结构示意图。
如图2所示，本申请实施例的电池电芯包括：双向引出端子，即第一电极引出端子对以及第二电极引出端子对。其中，第一电极引出端子对包括第一正端子201和第一负端子202，第二电极引出端子对包括第二正端子203和第二负端子204。
第一正端子201与第一负端子202并排设置，第二正端子203与第二负端子204并排设置；第一正端子201与第二正端子203相对设置，第一负端子202与第二负端子204相对设置。
本申请实施例提供的电池电芯，在实际使用中，可以用一个方向的一对电极引出端子作为快速充电端子连接至终端的充电端口，另一对电极引出端子作为普通充电放电端子使用连接至终端的主板上。
本申请实施例提供的电池电芯，包含两对电极引出端子，这两对电子引出端子相对设置。电池电芯安装在终端中时，其中一对电极引出端子靠近终端底部中央的充电端口，与该对电极引出端子相对的另一对电极引出端子则靠近终端顶部的主板，终端的充电端口以及主板均可靠近电池电芯的电极(即正端子、负端子)就近连接，无需采用FPC进行连接。因此，采用本申请提供的电池电芯，能够避免现有的技术方案中存在的因需要采用FPC将充电端口或主板与电池电芯的电极进行连接而带来的一系列问题。如：增加终端制作成本，增加充电通路阻抗或者增加线路损耗最终影响快速充电效率的问题。
实施例二
参照图3，示出了本申请实施例二的电池电芯在终端中的连接示意图。
本申请实施例中的电池电芯具有实施例一中的电池电芯的相同的结构，也包含双向引出端子，即第一电极引出端子对以及第二电极引出端子对。其中，第一电极引出端子对包括第一正端子和第一负端子，第二电极引出端子对包括第二正端子和第二负端子。第一正端子与第一负端子并排设置，第二正端子与第二负端子204并排设置；第一正端子201与第二正端子203相对设置，第一负端子202与第二负端子204相对设置。
本申请中的电池电芯在实际使用中，同一方向的一对电极引出端子可以作为快速充电端子，同一方向的另一对电极引出端子可以作为普通充放电端子。在基于快速充电的三段式设计终端中，电池电芯与终端主板以及终端的充电端口的具体连接关系如图3所示。
本实施例中将电池电芯的第一电极引出端子作为快速充电端子，将与其相对的第一电极引出端子对作为普通充放电端子。第一电极引出端子对(即快速充电端子)通过快速充电电路与终端的充电端口相连；第二电极引出端子对(即普通充放电端子)与终端的主板通过焊点连接。可见，上述连接方式既满足了电芯的电极靠近充电端口又使放电端口靠近主板，无需采用FPC将电芯电极与终端充电端口或主板进行连接，从而达到了减小充电、放电电路阻抗，节省功率转接FPC的效果。
本实施例中，将快速充放电电路设置在转接板中，因此，在图3中第一电极引出端子对通过转接板与终端的充电端口相连接。需要说明的是，本实施例中的电池电芯的第二电极引出端子对即普通充放电端子，在对电池进行快速充电时，仅作为电池电芯的放电端子。在对电池进行普通充电时，既作为普通充电端子向电池冲入电流，又作为放电端子向主板供电。
通过上述内容对电池电芯在终端中的具体连接关系进行介绍后，下面通过下述内容对电池电芯中的两对电极引出端子具体设置位置，以及电池电芯的具体构造进行说明。
电池电芯除包括第一正端子、第二正端子、第一负端子与第二负端子外，还包括：正极物质、与正极物质相连接的正极基体、负极物质以及与负极物质相连接的负极基体。
其中，第一正端子与第二正端子为电芯正极的正极集流体，第一负端子与第二负端子为电芯负极的负极集流体。
图4中示出了电池电芯的正极结构。如图4所示，正极基体401与正极物质402相连接，第一正端子403与第二正端子404为一整体作为正极集流体，焊接在正极基体401上，并且，正极集流体的两端均远离正极基体401。正极集流体上分别距正极集流体的两端符合预设距离范围部分，均缠绕有高温胶带405。
在正极集流体的两端缠绕高温胶带目的为：避免电芯在卷绕过程中，正极集流体与负极集流体之间发生短路。
其中，预设距离范围可以由本领域技术人员根据实际需求进行设置。例如：将未与正极基体重合部分的正极集流体、两端预留出设定区域后均缠绕上高温胶带；或者是，将正极集流体两端预留出设定区域后，除将未与正极基体重合部分缠绕上高温胶带外，还将重合部分、未被焊点占用的正极集流体部分缠绕上高温胶带。
优选的，正极集流体的材质为铝，正极基体的材质为铝箔，这是由于铝与铝箔在焊接时易连接并且稳固性好。相应地，由于正极集流体的材质为铝，则可将第一正端子与第二正端子设置成一整条铝带作为正极集流体。
图5示出了电池电芯的负极结构。如图5所示，负极基体501与负极物质502相连接，第一负端子503与第二负端子504为一整体作为负极集流体焊接在负极基体上。且负极集流体的两端均远离负极基体。负极集流体上分别距负极集流体的两端符合预设距离范围部分，均缠绕有高温胶带505。
在负极集流体的两端缠绕高温胶带目的为：避免电芯在卷绕过程中，正极集流体与负极集流体之间发生短路。
其中，预设距离范围可以由本领域技术人员根据实际需求进行设置，以所缠绕的方式能够避免电芯在卷绕过程中，正极集流体与负极集流体之间发生短路即可，本实施例中对此不作具体限定。
优选的，负极集流体的材质为镍，负极基体的材质为铜箔，这是由于镍与铜箔在焊接时易连接并且稳固性好。相应地，由于负极集流体的材质为镍，则可将第一负端子与第二负端子设置成一整条镍带作为负极集流体。
上述图4、图5中仅是示意性地示出了第一正端子与第二正端子可以为一整体，第一负端子与第二负端子可以为一整体。但是，在具体制作过程中，还可以将第一正端子与第二正端子分开设置，第一负端子与第二负端子分开设置，具体设置方式如下：
将第一正端子的第一端与第二正端子的第一端分别焊接在正极基体上；第一正端子的第二端远离正极基体，且第一正端子上距第一正端子的第二端符合预设距离范围部分缠绕有高温胶带；第二正端子的第二端远离正极基体，且第二正端子上距第二正端子的第二端符合预设距离范围部分缠绕有高温胶 带。
其中，第一正端子以及第二正端子也同样为正极集流体，可以选用两段铝带分别作为第一正端子以及第二正端子。
将第一负端子的第一端与第二负端子的第一端分别焊接在负极基体上；第一负端子的第二端远离负极基体，且第一负端子上距第一负端子的第二端符合预设距离范围部分缠绕有高温胶带；第二负端子的第二端远离负极基体，且第二负端子上距第二负端子的第二端符合预设距离范围部分缠绕有高温胶带。
其中，第二端子以及第二端子也同样为负极集流体，可以选用两段镍带分别作为第一负端子以及第二负端子。
在第一正端子、第二正端子、第一负端子以及第二负端子上缠绕高温胶带同样是为了避免电芯在卷绕过程中，正极集流体与负极集流体之间发生短路。预设距离范围可以由本领域技术人员根据实际需求进行设置，以所缠绕的方式能够避免电芯在卷绕过程中，正极集流体与负极集流体之间发生短路即可，本实施例中对此不作具体限定。
本申请实施例提供的电池电芯，包含两对电极引出端子，这两对电子引出端子相对设置。电池电芯安装在终端中时，其中一对电极引出端子靠近终端底部中央的充电端口，与该对电极引出端子相对的另一对电极引出端子则靠近终端顶部的主板，终端的充电端口以及主板均可靠近电池电芯的电极(即正端子、负端子)就近连接，无需采用FPC进行连接。因此，采用本申请提供的电池电芯，能够避免现有的技术方案中存在的因需要采用FPC将充电端口或主板与电池电芯的电极进行连接而带来的一系列问题。如：增加终端制作成本，增加充电通路阻抗或者增加线路损耗最终影响快速充电效率的问题。
本说明书中的各个实施例均采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似的部分互相参见即可。对于系统实施例而言，由于其与方法实施例基本相似，所以描述的比较简单，相关之处参见方法实施例的部分说明即可。
以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或 者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性的劳动的情况下，即可以理解并实施。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到各实施方式可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件。基于这样的理解，上述技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品可以存储在计算机可读存储介质中，如ROM/RAM、磁碟、光盘等，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行各个实施例或者实施例的某些部分所述的方法。
最后应说明的是：以上实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的精神和范围。

Claims (7)

  1. 一种电池电芯，其特征在于，包括：第一电极引出端子对以及第二电极引出端子对；
    其中，所述第一电极引出端子对包括第一正端子和第一负端子，所述第二电极引出端子对包括第二正端子和第二负端子；
    所述第一正端子与所述第一负端子并排设置，所述第二正端子与所述第二负端子并排设置；所述第一正端子与所述第二正端子相对设置，所述第一负端子与所述第二负端子相对设置。
  2. 根据权利要求1所述的电池电芯，所述电池电芯安装于终端中，其特征在于：
    所述第一电极引出端子对通过快速充电电路与所述终端的充电端口相连；所述第二电极引出端子对与所述终端的主板通过焊点连接。
  3. 根据权利要求1或2所述的电池电芯，其特征在于，所述电池电芯还包括：正极物质和与所述正极物质相连接的正极基体；
    所述第一正端子的第一端与所述第二正端子的第一端分别焊接在所述正极基体上；
    所述第一正端子的第二端远离所述正极基体，且所述第一正端子上距所述第一正端子的第二端符合预设距离范围部分缠绕有高温胶带；
    所述第二正端子的第二端远离所述正极基体，且所述第二正端子上距所述第二正端子的第二端符合预设距离范围部分缠绕有高温胶带。
  4. 根据权利要求1或2所述的电池电芯，其特征在于，所述电池电芯还包括：负极物质以及与所述负极物质相连接的负极基体；
    所述第一负端子的第一端与所述第二负端子的第一端分别焊接在所述负极基体上；
    所述第一负端子的第二端远离所述负极基体，且所述第一负端子上距所述第一负端子的第二端符合预设距离范围部分缠绕有高温胶带；
    所述第二负端子的第二端远离所述负极基体，且所述第二负端子上距所述第二负端子的第二端符合预设距离范围部分缠绕有高温胶带。
  5. 根据权利要求1或2所述的电池电芯，其特征在于，所述电池电芯还 包括：正极物质以及与所述正极物质相连接的正极基体；
    所述第一正端子与所述第二正端子为焊接在所述正极基体上的正极集流体，且第一正端子与所述第二正端子为一整体，所述正极集流体的两端均远离所述正极基体；
    所述正极集流体上分别距所述正极集流体的两端符合预设距离范围部分，均缠绕有高温胶带。
  6. 根据权利要求5所述的电池电芯，其特征在于，所述电池电芯还包括：负极物质以及与所述负极物质相连接的正极基体；
    所述第一负端子与所述第二负端子为焊接在所述负极基体上的负极集流体，且第一负端子与所述第二负端子为一整体，所述负极集流体的两端均远离所述负极基体；
    所述负极集流体上分别距所述负极集流体的两端符合预设距离范围部分，均缠绕有高温胶带。
  7. 根据权利要求6所述的电池电芯，其特征在于，所述正极基体的材质为铝箔，所述负极基体的材质为铜箔，所述正极集流体的材质为铝，所述负极集流体的材质为镍。
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