WO2019080349A1 - 贴片电池 - Google Patents

贴片电池

Info

Publication number
WO2019080349A1
WO2019080349A1 PCT/CN2017/118911 CN2017118911W WO2019080349A1 WO 2019080349 A1 WO2019080349 A1 WO 2019080349A1 CN 2017118911 W CN2017118911 W CN 2017118911W WO 2019080349 A1 WO2019080349 A1 WO 2019080349A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
housing
pin
patch
lead
Prior art date
Application number
PCT/CN2017/118911
Other languages
English (en)
French (fr)
Inventor
陈志勇
Original Assignee
陈志勇
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN201721376707.8U external-priority patent/CN207504045U/zh
Priority claimed from CN201710993845.9A external-priority patent/CN107665963A/zh
Application filed by 陈志勇 filed Critical 陈志勇
Publication of WO2019080349A1 publication Critical patent/WO2019080349A1/zh

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Classifications

    • 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
    • H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • 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

Definitions

  • the present invention relates to the field of battery technology, and more particularly to a patch battery.
  • Existing non-removable batteries usually include positive and negative wires.
  • the positive and negative wires are soldered to the set parts of the electronic product by soldering, laser welding or resistance welding.
  • the welding and installation process of the battery is not only labor-intensive, but the quality of the welding depends on the skill of the operator, which results in unstable welding quality, and the welding temperature of the above welding method is high, which may cause damage to the battery.
  • a patch battery includes a housing, a battery core and a lead member, the inside of the housing has a sealed space, the battery core is located in the sealed space, and the lead member is disposed on a shell of the housing
  • the lead component includes a positive pole and a negative pole, the positive pole is connected to a positive pole of the battery, and the negative pole is connected to a negative pole of the battery;
  • the installation of the patch battery includes the following steps:
  • Reflow soldering is performed to solder the lead components to the pads.
  • a protection unit is further integrated, the protection unit is integrated with a protection device configured to prevent overcharge, over discharge, short circuit and/or overload of the patch battery, the protection device and the protection device The positive and negative terminals of the battery are connected.
  • the protection unit set further includes a temperature sensing device
  • the lead component further includes a temperature sensing pin
  • the sensing portion of the temperature sensing device is configured to sense a positive pole of the battery The temperature of the temperature sensing device is connected to the temperature sensing pin.
  • the protection unit set is further provided with a fuel gauge
  • the lead component further includes a power pin
  • the sensing portion of the fuel gauge is connected to the positive pole of the battery
  • the signal line of the fuel gauge Connected to the power pin.
  • a safety valve is also included, the safety valve being disposed in a casing wall of the housing.
  • the lead component further includes a ground pin configured to discharge static electricity of the housing.
  • the housing includes a housing and a base, the housing and the base being coupled together to form the sealed space therein, the lead member being embedded in the base.
  • the surface of the lead component for soldering is flush with the outer surface of the housing.
  • the soldering temperature of the reflow soldering is 100-300 °C.
  • the lead component is made of copper, aluminum, zinc, nickel, silver or stainless steel.
  • the chip battery is provided with a lead member.
  • the lead components are soldered to the corresponding pads of the device to be mounted by a surface mount method, which facilitates soldering of the patch battery to the device to be mounted, and has good soldering reliability and is suitable for mass production.
  • a patch machine can be used to solder the chip battery to the device to be mounted.
  • the structure of the patch battery is simple, and no wire is required, which complies with the development trend of miniaturization of electronic devices.
  • the soldering temperature of the chip battery is low, it is not easy to damage the device such as the casing and the battery cell of the chip battery, and the yield is high.
  • FIG. 1 is a schematic view showing the structure of the inside of a chip battery according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural view of a patch battery according to another embodiment of the present invention.
  • FIG 3 is a cross-sectional view of a patch battery in accordance with an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of a patch battery in accordance with another embodiment of the present invention.
  • a patch battery is provided.
  • the chip battery includes a housing, a battery core 15, and a lead member.
  • the pin components include the pins of various components. Pins are used to conduct or transmit electrical signals.
  • the interior of the housing has a confined space.
  • the battery cell 15 is located in a confined space.
  • the lead components are disposed in the housing wall of the housing.
  • the pin components include a positive pin 12 and a negative pin 13.
  • the positive electrode pin 12 is connected to the positive electrode of the battery cell 15.
  • the negative electrode lead 13 is connected to the negative electrode of the battery cell 15.
  • the positive electrode lead 12 is connected to the positive electrode tab of the battery cell 15 by a wire.
  • the negative electrode lead 13 is connected to the negative electrode tab of the battery cell 15 through a wire.
  • the installation of the patch battery includes the following steps:
  • the device to be installed may be, but not limited to, a PCB of a mobile phone, a wireless headset, a wireless audio, a notebook computer, a smart watch, a wristband, a tablet computer, a VR device, an AR device, and the like.
  • a corresponding pad is provided on the PCB.
  • a pad of an electrode of a device to be mounted a pad for receiving a signal of a temperature, a power amount, and the like of the chip battery.
  • Those skilled in the art can set the number and position of the pads according to actual needs.
  • solder paste is heated and melted to wet the pads and the lead components. After the solder paste is cured, the pads are soldered to the lead components.
  • the soldering temperature of reflow soldering is 100-300 °C. This temperature range has good soldering quality and does not damage the device such as the housing of the chip battery, the battery cell 15, and the like.
  • the chip battery is provided with lead components.
  • the lead components are soldered to the corresponding pads of the device to be mounted by a surface mount method, which facilitates soldering of the patch battery to the device to be mounted, and has good soldering reliability and is suitable for mass production.
  • a patch machine can be used to solder the chip battery to the device to be mounted.
  • the structure of the patch battery is simple, and it is not necessary to provide positive and negative wires, which complies with the development trend of miniaturization of electronic devices.
  • the soldering temperature of the chip battery is low, it is not easy to damage the device such as the casing of the chip battery, the battery cell 15, and the like, and the yield is high.
  • the housing includes a housing 20 and a base 19.
  • the outer casing 20 and the base 19 are joined together to form a closed space inside them.
  • a lead component (for example, positive pin 12, negative pin 13, etc.) is embedded in the susceptor 19. This structure makes it easy to mount the battery core 15 and the lead components.
  • the susceptor 19 is used to hold various components such as wires, cells 15, or other functional devices.
  • the base 19 has a plate-like structure.
  • the outer casing 20 and the base 19 are made of a metal, ceramic or semiconductor material.
  • the above materials have good high temperature resistance and are not damaged during reflow soldering.
  • the outer casing 20 made of the above materials is not easily damaged during the picking process of the patching machine.
  • the shape of the outer casing 20 may be, but not limited to, a square, a cylinder, an elliptical cylinder, a semi-cylindrical shape, or the like.
  • the lead components are made of copper, aluminum, zinc, nickel, silver, or stainless steel.
  • the above materials have good electrical conductivity, wide source and low cost. Those skilled in the art can select the material of the lead component according to actual needs.
  • the lead member penetrates the base 19 in the thickness direction.
  • the battery cell 15 includes a positive electrode sheet 21, a negative electrode sheet 22, and a separator 23 between the positive and negative electrode sheets 21, 22.
  • the positive electrode tab 21 is connected to the positive electrode tab
  • the negative electrode tab 22 is connected to the negative electrode tab.
  • the battery core 15 is connected to other components through two tabs for charging, discharging, and the like.
  • the battery core 15 can be fabricated by winding or laminating.
  • the electrolyte of the cell 15 may be a liquid electrolyte, a solid electrolyte or a semi-solid electrolyte.
  • the electrolyte is placed on the separator 23 by means of dipping, injecting, or direct coating.
  • the cell 15 and the electrolyte should be protected from damage during reflow soldering.
  • the battery core 15 Before sealing the housing, the battery core 15 should first be baked to remove moisture therein. This will prevent the patch battery from being dangerous when it is used. For example, baking at a temperature of 80 ° C for 72 hours.
  • the seal of the housing is carried out under vacuum to remove oxygen from the enclosed space.
  • the sealed chip battery is also subjected to processes such as formation and volume division.
  • the electrolyte of the cell 15 is electrically connected to the positive and negative electrode sheets 22 so that the cell 15 can electrochemically react.
  • the splitting process the capacity of the tile battery is determined.
  • a protection unit 16 is also included.
  • the protection unit 16 is used to protect the patch battery during charging and/or use.
  • the protection unit 16 is a protection chip.
  • the protection unit 16 is integrated with a protection device.
  • the protection device is configured to prevent overcharge, overdischarge, short circuit, and/or overload of the patch battery.
  • the protection device is connected to the positive and negative electrodes of the battery cell 15. For example, when the patch device overcharges, overdischarges, overloads or shorts the chip battery, the positive and negative lines of the battery cell are cut off, which can play a protective role.
  • the protection device significantly improves the safety of the patch battery.
  • the protection unit 16 is fixed to the base 19.
  • the protection device is connected to the positive and negative poles of the cell 15.
  • the protection unit 16 may be disposed in the enclosed space of the housing or may be disposed outside the housing as shown in FIGS. 3-4.
  • the protection unit 16 is also integrated with a temperature sensing device.
  • the pin component also includes a temperature sensing pin 17.
  • the sensing portion of the temperature sensing device is for sensing the temperature of the positive electrode of the battery cell 15.
  • the signal line of the temperature sensing device is connected to the temperature sensing pin 17.
  • the temperature sensing device is used to sense a temperature signal inside the patch battery and output a temperature signal to facilitate an alarm when the temperature of the patch battery is too high.
  • the positive electrode of the battery cell 15 for example, the positive electrode tab 21 and the positive electrode tab
  • the temperature reference value of the portion is the highest.
  • the temperature sensing pin 17 is soldered together with the pads corresponding to the device to be mounted during the surface mount process.
  • the temperature sensing device outputs a temperature signal inside the patch battery through the temperature sensing pin 17. For example, it is output to the display of the electronic product through the PCB board.
  • the temperature sensing device can be located within the housing or external to the housing.
  • the set of protection units is also powered by a fuel gauge.
  • the fuel gauge is used to measure the battery's power signal and output the power signal.
  • the pin components also include a power pin. The sensing portion of the fuel gauge is connected to the positive electrode of the battery cell 15. The signal line of the fuel gauge is connected to the power pin.
  • the power pins are soldered together with the pads corresponding to the device to be mounted during the surface mount process.
  • the fuel gauge outputs the power signal of the chip battery through the power pin. For example, it is output to the display of the electronic product through the PCB board.
  • the fuel gauge can be located within the housing or outside the housing.
  • the protection unit is also integrated with a MOS switch, a PTC unit, and an NTC unit.
  • the MOS switch prevents inrush current from damaging the chip battery.
  • the PTC unit cuts off the charging circuit, thereby preventing high temperature damage of the patch battery.
  • the NTC unit cuts off the charging circuit, thereby preventing low temperature damage of the patch battery.
  • the patch battery also includes a safety valve 14.
  • the safety valve 14 is disposed in the casing wall of the casing. When the pressure of the closed space exceeds the opening pressure of the safety valve 14, the safety valve 14 is opened to relieve pressure, thereby preventing the patch battery from exploding.
  • the opening pressure of the relief valve 14 is 1.5 atmospheres. When the air pressure inside the casing reaches 1.5 atm, the safety valve 14 is opened to release the pressure to prevent the patch battery from exploding.
  • the lead component also includes a ground pin 11.
  • the ground pin 11 is configured to discharge static electricity of the case. During the surface mount process, the ground pin 11 is soldered to the ground pad of the device to be mounted. In this way, static electricity on the housing is released through the ground pin 11, which improves the electrostatic protection function of the patch battery.
  • the surface of the pin for soldering is flush with the outer surface of the housing. This structure makes it easy to fit the lead components to the pads of the device to be mounted (for example, a PCB), and the shape of the patch battery is more regular.

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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)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

一种贴片电池，包括壳体、电芯（15）和引脚部件，壳体的内部具有密闭空间，电芯（15）位于密闭空间内，引脚部件被设置在壳体的壳壁中，引脚部件包括正极引脚（12）和负极引脚（13），正极引脚（12）与电芯（15）的正极连接，负极引脚（13）与电芯（15）的负极连接；贴片电池的安装包括以下步骤：在待安装设备的焊盘上覆设锡膏；将引脚部件贴附到相应的焊盘上；进行回流焊接，以将引脚部件焊接在焊盘上。该贴片电池具有安装容易，焊接可靠性好，成品率高的特点。

Description

贴片电池 技术领域
本发明涉及电池技术领域，更具体地，涉及一种贴片电池。
背景技术
随着科技的进步，电子产品越来越趋于小型化，电子产品通常需要电池供电。为了适应电子产品小型化的发展趋势，电池通常做成不可拆卸式的。
现有的不可拆卸式电池，通常包括正、负极导线。正、负极导线通过锡焊焊接、激光焊接或电阻焊接的方式焊接到电子产品的设定部位。电池的焊接和安装过程不仅耗费人工，焊接质量取决于操作员的熟练程度，因而造成焊接质量不稳定，而且由于上述焊接方法的焊接温度高，会造成电池的损伤。
发明内容
本发明的一个目的是提供一种贴片电池的新技术方案。
根据本发明的第一方面，提供了一种贴片电池。该贴片电池包括壳体、电芯和引脚部件，所述壳体的内部具有密闭空间，所述电芯位于所述密闭空间内，所述引脚部件被设置在所述壳体的壳壁中，所述引脚部件包括正极引脚和负极引脚，所述正极引脚与所述电芯的正极连接，所述负极引脚与所述电芯的负极连接；
所述贴片电池的安装包括以下步骤：
在待安装设备的焊盘上覆设锡膏；
将所述引脚部件贴附到相应的所述焊盘上；
进行回流焊接，以将所述引脚部件焊接在所述焊盘上。
可选地，还包括保护单元，所述保护单元集成有保护装置，所述保护 装置被构造为用于防止贴片电池过充、过放、短路和/或过载，所述保护装置与所述电芯的正、负极连接。
可选地，所述保护单元集还成有温度感测装置，所述引脚部件还包括温度感测引脚，所述温度感测装置的感测部用于感测所述电芯的正极的温度，所述温度感测装置的信号线与所述温度感测引脚连接。
可选地，所述保护单元集还成有电量计，所述引脚部件还包括电量引脚，所述电量计的感测部与所述电芯的正极连接，所述电量计的信号线与所述电量引脚连接。
可选地，还包括安全阀，所述安全阀被设置在所述壳体的壳壁中。
可选地，所述引脚部件还包括接地引脚，所述接地引脚被构造为用于释放所述壳体的静电。
可选地，所述壳体包括外壳和基座，所述外壳和所述基座连接在一起，以在它们内部形成所述密闭空间，所述引脚部件嵌设在所述基座中。
可选地，所述引脚部件的用于焊接的表面与所述壳体的外表面相平齐。
可选地，所述回流焊接的焊接温度为100-300℃。
可选地，所述引脚部件的材质为铜、铝、锌、镍、银或者不锈钢。
根据本公开的一个实施例，贴片电池设置有引脚部件。引脚部件通过表面贴装的方法被焊接到待安装设备的相应的焊盘上，这使得贴片电池与待安装设备的焊接变得容易，焊接可靠性好，适用于大规模生产。例如，可以采用贴片机器将贴片电池焊接到待安装设备上。
此外，该贴片电池的结构简单，不需要设置导线，顺应了电子设备小型化的发展趋势。
此外，该贴片电池的焊接温度低，故不容易损坏贴片电池的壳体、电芯等器件，成品率高。
通过以下参照附图对本发明的示例性实施例的详细描述，本发明的其它特征及其优点将会变得清楚。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实 施例，并且连同其说明一起用于解释本发明的原理。
图1是根据本发明的一个实施例的贴片电池的内部的结构示意图。
图2是根据本发明的另一个实施例的贴片电池的结构示意图。
图3是根据本发明的一个实施例的贴片电池的剖视图。
图4是根据本发明的另一个实施例的贴片电池的剖视图。
附图标记说明：
11：接地引脚；12：正极引脚；13：负极引脚；14：安全阀；15：电芯；16：保护单元；17：温度感测引脚；19：基座；20：外壳；21：正极片；22：负极片；23：隔离膜。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步讨论。
根据本发明的一个实施例，提供了一种贴片电池。该贴片电池包括壳体、电芯15和引脚部件。引脚部件包括各种元器件的引脚。引脚用于导电或者传输电信号。壳体的内部具有密闭空间。电芯15位于密闭空间内。引脚部件被设置在壳体的壳壁中。
引脚部件包括正极引脚12和负极引脚13。正极引脚12与电芯15的 正极连接。负极引脚13与电芯15的负极连接。例如，正极引脚12通过导线与电芯15的正极极耳连接。负极引脚13通过导线与电芯15的负极极耳连接。
该贴片电池的安装包括以下步骤：
S1、在待安装设备的焊盘上覆设锡膏。待安装设备可以是但不局限于手机、无线耳机、无线音响、笔记本电脑、智能手表、手环、平板电脑、VR设备、AR设备等设备的PCB。在PCB上设置有相应的焊盘。例如，待安装设备的电极的焊盘、用于接收贴片电池的温度、电量等信号的焊盘等。本领域技术人员可以根据实际需要设置焊盘的数量以及位置。
S2、将引脚部件贴附到相应的焊盘上。例如，贴片机器将贴片电池整体吸附后，放置到PCB相应的位置上，使得正、负极引脚12，13与相应的焊盘贴合在一起。在正、负极引脚12，13与相应的焊盘之间填充有锡膏。
S3、进行回流焊接，以将引脚部件焊接在焊盘上。在该步骤中，锡膏受热后熔化，以浸润焊盘和引脚部件。在锡膏固化后，焊盘与引脚部件焊接在一起。
例如，回流焊的焊接温度为100-300℃。该温度范围焊接质量好，并且不会损坏贴片电池的壳体、电芯15等器件。
在本发明实施例中，贴片电池设置有引脚部件。引脚部件通过表面贴装的方法被焊接到待安装设备的相应的焊盘上，这使得贴片电池与待安装设备的焊接变得容易，焊接可靠性好，适用于大规模生产。例如，可以采用贴片机器将贴片电池焊接到待安装设备上。
此外，该贴片电池的结构简单，不需要设置正、负极导线，顺应了电子设备小型化的发展趋势。
此外，该贴片电池的焊接温度低，故不容易损坏贴片电池的壳体、电芯15等器件，成品率高。
在一个例子中，壳体包括外壳20和基座19。外壳20和基座19连接在一起，以在它们内部形成密闭空间。引脚部件(例如，正极引脚12、负极引脚13等)嵌设在基座19中。这种结构使得电芯15、引脚部件的安装变得容易。
基座19用来固定各种元器件，例如，导线、电芯15或者其他功能器件。在该例子中，基座19呈板状结构。外壳20和基座19的材质为金属、陶瓷或半导体材料。上述材料具有良好的耐高温性能，在回流焊接时不会受到损伤。并且，上述材料制成的外壳20，在贴片机器抓取过程中不易损坏。外壳20的形状可以是但不局限于方形、圆柱形、椭圆柱形、半圆柱形等。
例如，引脚部件(例如，正极引脚12、负极引脚13等)的材质为铜、铝、锌、镍、银或者不锈钢。上述材料的导电效果好，来源广泛，成本低。本领域技术人员可以根据实际需要选择引脚部件的材质。引脚部件沿厚度方向贯穿基座19。
电芯15包括正极片21、负极片22以及位于正、负极片21,22之间的隔离膜23。正极片21与正极极耳连接，负极片22与负极极耳连接。电芯15通过两个极耳与其他元器件连接，以进行充、放电等操作。电芯15可以采用卷绕或者层叠等方式制作而成。电芯15的电解质可以为液态电解质、固态电解质或者半固态电解质。例如，采用浸泡、注射、或者直接涂覆的方式将电解质设置到隔离膜23上。
需要注意的是，电芯15和电解质应保证在回流焊接过程中不会被损坏。
在对壳体进行密封之前，应首先对电芯15进行烘烤，以去除其中的水分。这样可以避免贴片电池在使用时发生危险。例如，在80℃的温度下烘烤72小时。
壳体的密封在真空环境下进行，以去除密闭空间中氧气。密封后的贴片电池还要进行化成、分容等工序。在化成工序中，电芯15的电解质与正、负极片22导通，以使电芯15能够发生电化学反应。在分容工序中，确定贴片电池的容量。
在一个例子中，还包括保护单元16。保护单元16用于在充电时和/或使用时保护贴片电池。例如，保护单元16为保护芯片。保护单元16集成有保护装置。保护装置被构造为用于防止贴片电池过充、过放、短路和/或过载。保护装置与电芯15的正、负极连接。例如，保护装置在贴片电池 过充、过放、过载或短路时，切断电芯的正、负极的线路，这样能够起到保护的作用。保护装置显著提高了贴片电池的安全性能。
例如，保护单元16被固定在基座19上。保护装置与电芯15的正极极耳和负极极耳连接。可选地，保护单元16可以被设置在壳体的密闭空间内，也可以被设置在壳体外，如图3-4所示。
在一个例子中，保护单元16集还成有温度感测装置。引脚部件还包括温度感测引脚17。温度感测装置的感测部用于感测电芯15的正极的温度。温度感测装置的信号线与温度感测引脚17连接。
温度感测装置用于感测贴片电池内部的温度信号，并将温度信号输出，以便于在贴片电池温度过高时进行警报。在通常情况下，电芯15的正极(例如，正极片21和正极极耳)的温度最高，该部位的温度参考价值最高。
在该例子中，温度感测引脚17在表面贴装过程中与待安装设备相应的焊盘焊接在一起。温度感测装置通过温度感测引脚17将贴片电池内部的温度信号输出。例如，再通过PCB板输出至电子产品的显示器上。
例如，温度感测装置可以位于壳体内，也可以位于壳体外。
在一个例子中，保护单元集还成有电量计。电量计用于测量电池的电量信号，并将电量信号进行输出。引脚部件还包括电量引脚。电量计的感测部与电芯15的正极连接。电量计的信号线与电量引脚连接。
在该例子中，电量引脚在表面贴装过程中与待安装设备相应的焊盘焊接在一起。电量计通过电量引脚将贴片电池的电量信号输出。例如，再通过PCB板输出至电子产品的显示器上。
例如，电量计可以位于壳体内，也可以位于壳体外。
在其他示例中，保护单元还集成有MOS开关、PTC单元和NTC单元。MOS开关能够避免浪涌电流对贴片电池造成损坏。
此外，在贴片电池充电时，温度过高或者过低都会对贴片电池造成损坏。在温度过高的情况下，PTC单元切断充电电路，从而防止贴片电池的高温损坏。在温度过低的情况下，NTC单元切断充电电路，从而防止贴片电池的低温损坏。
在一个例子中，贴片电池还包括安全阀14。安全阀14被设置在壳体 的壳壁中。当密闭空间的压强超过安全阀14的开启压强时，安全阀14开启以进行泄压，从而防止贴片电池发生爆炸。例如，安全阀14的开启压强为1.5个大气压。壳体内部的气压达到1.5个大气压时，安全阀14开启，以释放压力，防止贴片电池爆炸。
在一个例子中，引脚部件还包括接地引脚11。接地引脚11被构造为用于释放壳体的静电。在表面贴装过程中，接地引脚11与待安装设备的接地焊盘焊接在一起。这样，壳体上的静电会通过接地引脚11进行释放，提高了贴片电池的静电防护功能。
在一个例子中，引脚的用于焊接的表面与壳体的外表面相平齐。这种结构使得引脚部件与待安装设备(例如，PCB)的焊盘的贴合变得容易，并且贴片电池的外形更加规整。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (10)

  1. 一种贴片电池，其特征在于，包括壳体、电芯和引脚部件，所述壳体的内部具有密闭空间，所述电芯位于所述密闭空间内，所述引脚部件被设置在所述壳体的壳壁中，所述引脚部件包括正极引脚和负极引脚，所述正极引脚与所述电芯的正极连接，所述负极引脚与所述电芯的负极连接；
    所述贴片电池的安装包括以下步骤：
    在待安装设备的焊盘上覆设锡膏；
    将所述引脚部件贴附到相应的所述焊盘上；
    进行回流焊接，以将所述引脚部件焊接在所述焊盘上。
  2. 根据权利要求1所述的贴片电池，其特征在于，还包括保护单元，所述保护单元集成有保护装置，所述保护装置被构造为用于防止贴片电池过充、过放、短路和/或过载，所述保护装置与所述电芯的正、负极连接。
  3. 根据权利要求1或2所述的贴片电池，其特征在于，所述保护单元集还成有温度感测装置，所述引脚部件还包括温度感测引脚，所述温度感测装置的感测部用于感测所述电芯的正极的温度，所述温度感测装置的信号线与所述温度感测引脚连接。
  4. 根据权利要求1-3中的任意一项所述的电池装置的制作方法，其特征在于，所述保护单元集还成有电量计，所述引脚部件还包括电量引脚，所述电量计的感测部与所述电芯的正极连接，所述电量计的信号线与所述电量引脚连接。
  5. 根据权利要求1-4中的任意一项所述的贴片电池，其特征在于，还包括安全阀，所述安全阀被设置在所述壳体的壳壁中。
  6. 根据权利要求1-5中的任意一项所述的贴片电池，其特征在于， 所述引脚部件还包括接地引脚，所述接地引脚被构造为用于释放所述壳体的静电。
  7. 根据权利要求1-6中的任意一项所述的贴片电池，其特征在于，所述壳体包括外壳和基座，所述外壳和所述基座连接在一起，以在它们内部形成所述密闭空间，所述引脚部件嵌设在所述基座中。
  8. 根据权利要求1-7中的任意一项所述的贴片电池，其特征在于，所述引脚部件的用于焊接的表面与所述壳体的外表面相平齐。
  9. 根据权利要求1-8中的任意一项所述的贴片电池，其特征在于，所述回流焊接的焊接温度为100-300℃。
  10. 根据权利要求1-8中的任意一项所述的贴片电池，其特征在于，所述引脚部件的材质为铜、铝、锌、镍、银或者不锈钢。
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