WO2019134698A1 - Cellule de batterie, module de batterie et automobile - Google Patents

Cellule de batterie, module de batterie et automobile Download PDF

Info

Publication number
WO2019134698A1
WO2019134698A1 PCT/CN2019/070631 CN2019070631W WO2019134698A1 WO 2019134698 A1 WO2019134698 A1 WO 2019134698A1 CN 2019070631 W CN2019070631 W CN 2019070631W WO 2019134698 A1 WO2019134698 A1 WO 2019134698A1
Authority
WO
WIPO (PCT)
Prior art keywords
expansion
pole
cooling structure
area
battery unit
Prior art date
Application number
PCT/CN2019/070631
Other languages
English (en)
Chinese (zh)
Inventor
蒋露霞
程晗
颜海鹏
潘仪
何科峰
袁万颂
Original Assignee
比亚迪股份有限公司
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 CN201810475762.5A external-priority patent/CN110021776B/zh
Application filed by 比亚迪股份有限公司 filed Critical 比亚迪股份有限公司
Publication of WO2019134698A1 publication Critical patent/WO2019134698A1/fr

Links

Images

Classifications

    • 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
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • 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 application relates to the field of batteries, and relates to a battery unit, a battery module, and an automobile.
  • the battery includes a casing and a pole core disposed in the casing.
  • the volume of the battery unit determines the volume of the core core to a certain extent, and is an important determinant of the battery capacity.
  • the installation environment of the battery is basically determined. With the size of the space occupied by the battery, the overall volume of the battery is difficult to increase without limitation, and the capacity of the battery is also limited.
  • the present application provides a battery unit, wherein the battery unit includes a housing, a cover plate, and a pole core, the housing having an opening, and the housing is provided with an outwardly protruding housing expansion cavity.
  • the opening is closed by the cover plate, the pole core is disposed in the outer casing, the pole core includes a pole core body having a first expansion end, and the first expansion end is provided with a cooling structure fitting area and a relative a first expansion area protruding from the cooling structure fitting area, the first expansion area being at least partially received in the housing expansion cavity, and the cooling structure adaptation area is recessed relative to the first expansion area to form cooling Structure installation space.
  • the first expansion end is provided with the cooling structure fitting area located in the middle and the first expansion area respectively located on two sides of the cooling structure fitting area.
  • the first expansion end is provided with the first expansion area located in the middle and two cooling structure adaptation areas respectively located on both sides of the first expansion area.
  • the first expansion end is provided with three first expansion zones and two cooling structure adaptation zones, and the cooling structure adaptation zone is disposed in two adjacent ones. Between the first expansion areas.
  • the pole core body includes a plurality of the first expansion ends, and each of the first expansion ends is provided with the first expansion area and the cooling structure adaptation area.
  • the pole core body includes two first expansion ends respectively located at opposite ends of the pole core body, and each of the first expansion ends is provided with one of the cooling structures.
  • the mating zone, the two cooling structure fitting zones are aligned or staggered from one another.
  • the pole core body includes a second expansion end, and the second expansion end is provided with a pole fitting region and a second expansion region protruding relative to the pole fitting region.
  • the pole fitting region is recessed relative to the second expansion region to form a pole mounting space.
  • the cover plate includes a cover body and a cover expansion cavity protruding relative to the cover body, and the second expansion area is at least partially received in the cover expansion cavity .
  • the battery unit includes a pole connected to the pole core body and extending out of the cover body, the pole being at least partially disposed on the pole In the installation space.
  • the pole core includes a tab connected to the pole core body, the tab being electrically connected to the pole.
  • the battery unit includes an inner lead piece disposed to be disposed inside the cover body, and the pole is connected to the tab through the inner lead piece.
  • the tab is disposed in the pole fitting region.
  • the tab is integrally formed with the pole core body.
  • the present application also provides a battery module, wherein the battery module includes the battery unit described in the above scheme.
  • the present application also provides an automobile, wherein the automobile includes at least one battery module described in the above aspect.
  • a cooling structure fitting area corresponding to the external cooling structure and a expansion area protruding relative to the cooling structure fitting area are respectively disposed, and correspondingly, the housing expansion area is disposed on the outer casing.
  • the outer casing expands the cavity, thereby increasing the volume of the pole core body in a limited space near the external cooling structure, thereby increasing the battery capacity.
  • FIG. 1 is a perspective view of a pole core according to an embodiment of the present application.
  • FIG. 2 is an exploded view of a battery unit according to an embodiment of the present application.
  • FIG. 3 is a perspective view of a battery unit according to an embodiment of the present application.
  • FIG. 4 is a perspective view of a cover plate according to an embodiment of the present application.
  • Figure 5 is a perspective view of the outer casing of the embodiment of the present application.
  • Figure 6 is a perspective view of a cover plate according to an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a battery module according to an embodiment of the present application.
  • FIG 8 is a schematic view of a car according to an embodiment of the present application.
  • cooling structure adaptation zone 122 first expansion zone
  • the present application provides a battery unit 100, wherein the battery unit 100 includes a housing 3, a cover plate 4 and a pole core, the housing 3 has an opening 32, and the housing 3 is provided with an outwardly projecting housing expansion chamber 31, the opening 32 is covered by the cover plate 4, the pole core is disposed in the outer casing 3, the pole core comprises a pole core body 1 having a first expansion end 12, the first expansion end 12 is provided with a cooling structure fitting area 121 and a first expansion area 122 protruding relative to the cooling structure fitting area 121, the first expansion area 122 being at least partially accommodated in the housing expansion chamber 31,
  • the cooling structure fitting area 121 is recessed with respect to the first expansion area 122 to form a cooling structure installation space.
  • the cover 4 and the outer casing 3 together form a housing that houses the pole core.
  • the pole core includes a pole core body 1 .
  • One end of the pole core body 1 is a first expansion end 12
  • the first expansion end 12 is provided with a cooling structure fitting area 121 and a first expansion area 122.
  • the first expansion area 122 is opposite.
  • the cooling structure fitting area 121 is protruded to realize the expansion, and the space formed by the cooling structure fitting area 121 being recessed compared to the first expansion area 122 is a cooling structure installation space, and the cooling structure fitting area can be used for accommodating the pole At least a portion of the 5 is located in the pole mounting space.
  • the end of the pole core body 1 and the external cooling structure is expanded, that is, the first expansion end 12, and the area of the first expansion end 12 that cooperates with the cooling structure (ie, the cooling structure fitting area) 121)
  • the limitation of the cooling structure cannot be convex outward, and other areas have available space because they are not occupied by the cooling structure, so the pole core body 1 of this partial area is disposed to protrude outward, that is, the first expansion area 122.
  • the falling space formed by the first expansion area 122 and the cooling structure matching area 121 is a cooling structure installation space for installing the cooling structure.
  • the cooling structure may be all disposed in the cooling structure installation space, or may be only a part. Set in the cooling structure installation space.
  • one end of the outer casing 3 is also formed substantially in a shape corresponding to the first expansion end 12, that is, the casing expansion cavity 31 is formed. At least a portion of the first expansion zone 122 is received.
  • the first expansion end 12 is provided with the cooling structure fitting area 121 located in the middle and the first expansion of the two sides respectively located on the two sides of the cooling structure fitting area 121. Area 122.
  • the intermediate portion of the first expansion end 12 needs to be size-limited in cooperation with the cooling structure, and the other regions are not restricted by the cooling structure, and may protrude outward to form two first expansion regions 122 on both sides of the cooling structure fitting region 121.
  • the expansion is achieved by making full use of the space that is not occupied by the cooling structure.
  • the first expansion end 12 is provided with the first expansion area 122 located in the middle and two cooling structure adaptation areas respectively located on opposite sides of the first expansion area 122. 121. As shown in FIG. 1 , FIG. 2 and FIG. 3 , the first expansion end 12 needs to be matched with the cooling structure at the opposite edges and the size is limited, and the area at the intermediate position is not restricted by the cooling structure and can be convex outward.
  • the first expansion area 122 is formed to fully utilize the space occupied by the cooling structure to achieve capacity expansion.
  • the first expansion end 12 is provided with three first expansion regions 122 and two cooling structure adaptation regions 121, and the cooling structure adaptation regions 121 are disposed adjacent to each other. Between the two first expansion regions 122. That is, the first expansion area 122 and the cooling structure adaptation area 121 are alternately arranged along a straight line, the two cooling structure fitting areas 121 are spaced apart, and each of the cooling structure fitting areas 121 is provided with a first side. When the expansion area 122 has an unoccupied space on both sides of the cooling structure fitting area 121, the first expansion area 122 can be correspondingly disposed.
  • the pole core body 1 includes a plurality of the first expansion ends 12, and each of the first expansion ends 12 is provided with the first expansion area 122 and the cooling structure adaptation area 121.
  • the pole core body 1 may also be provided with a plurality of first expansion ends 12, and each of the first expansion ends 12 is provided with a cooling structure fitting area 121 and the first Expansion area 122.
  • the pole core body 1 includes two first expansion ends 12 respectively located at opposite ends of the pole core body 1, and each of the first expansion ends 12 is provided with one of the cooling structures.
  • the adaptation area 121, the two cooling structure adaptation areas 121 are aligned or staggered from each other. Both of the expansion ends 12 are provided with a cooling structure fitting area 121, and the two cooling structure fitting areas 121 are aligned or offset from each other.
  • the pole core body 1 includes a second expansion end 11 , and the second expansion end 11 is provided with a pole fitting area 112 and a second expansion area 111 protruding relative to the pole fitting area 112 .
  • the pole fitting region 112 is recessed relative to the second expansion region 111 to form a pole mounting space.
  • the second expansion end 11 is provided to accommodate the pole 5 (described below) of the battery unit 100.
  • the pole fitting area 112 is used to fit the pole 5 and is limited in size. In other areas, the second expansion end 11 is convex outward.
  • the pole mounting space formed by forming the second expansion area 111 and the pole fitting area 112 is recessed relative to the second expansion area can be used for mounting the pole.
  • the cover plate 4 includes a cover body 42 and a cover expansion chamber 41 protruding relative to the cover body 42.
  • the second expansion area 111 is at least partially received in the cover expansion chamber 41. .
  • the cover plate 4 is used to cover the second expansion end 11 , and as shown in FIG. 5 and FIG. 6 , the cover plate 4 has a shape corresponding to the second expansion end 11 , that is, a cover expansion chamber 41 that protrudes outward is formed, and the cover is formed.
  • the plate expansion chamber 41 can accommodate at least a portion of the second expansion area 111, and the cover body 42 corresponds to the pole alignment area 112.
  • the battery unit 100 includes a pole 5 connected to the pole core body 1 and extending through the cover body 42 , the pole 5 being at least partially disposed on the pole In the installation space.
  • the battery unit 100 includes two poles 5 respectively electrically connected to the pole core body 1, and the poles 5 extend through the cover body 42 to the outside, and the poles 5 may all be disposed in the pole mounting space.
  • the height of the pole 5 may be less than or equal to the height of the second expansion area 111.
  • the pole 5 may also be partially disposed in the pole mounting space, and the height of the pole 5 may be greater than the second expansion. The height of zone 111.
  • the pole core comprises a tab 2 connected to the pole core body 1, the tab 2 being electrically connected to the pole 5.
  • the pole core body 1 may be provided with two tabs 2 corresponding to the positive and negative poles, respectively, and the two tabs 2 are respectively connected to the two poles 5.
  • the battery unit 100 includes an inner lead piece 6 disposed to be disposed inside the cover body 42 , and the pole 5 is connected to the tab 2 through the inner lead piece 6 .
  • the inner lead piece 6 is disposed on the inner side of the cover body 42, the pole 5 is connected to the inner lead piece 6 through the cover body 42, and the tab 2 is connected to the inner lead piece 6, thereby realizing the pole
  • the electrical connection between the ear 2 and the pole 5, through the inner lead-out piece 6 as a transition can increase the contact area of the tab 2 and the pole 5.
  • the tab 2, the inner lead piece 6, and the pole 5 are each made of a conductive material.
  • the tab 2 is disposed in the pole fitting region 112.
  • the tabs 2 may all be disposed in the pole fitting region 112, or only partially in the pole fitting region 112, the tab 2 may be connected to the pole fitting region 112, or connected to the second expansion region 111 or pole
  • the other positions of the core body 1 extend to the pole fitting region 112 so as to be connectable to the pole 5.
  • the tab 2 is integrally formed with the pole core body 1.
  • the tab 2 and the pole core body 1 are integrally formed of a material made into a pole core, and the tab 2 includes two tabs as a positive electrode and a negative electrode.
  • the tab 2 can be additionally fabricated and attached to the pole core body 1.
  • the present application further provides a battery module 200 , wherein the battery module 200 includes the battery unit 100 described in the above scheme.
  • the battery module 200 may include a plurality of the battery cells 100, and the plurality of battery cells 100 are connected in series or in parallel to supply power.
  • the present application further provides an automobile 300, wherein the automobile 300 includes at least one battery module 200 according to the above aspect.
  • first and second are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the meaning of "a plurality” is two or more unless specifically and specifically defined.
  • the terms “installation”, “connected”, “connected”, “fixed” and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements.
  • installation can be understood on a case-by-case basis.
  • the first feature "on” or “below” the second feature may be the direct contact of the first and second features, or the first and second features are indirectly through the intermediate medium, unless otherwise explicitly stated and defined. contact.
  • the first feature "above”, “above” and “above” the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature.
  • the first feature “below”, “below” and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

Abstract

L'invention concerne une cellule de batterie (100) qui comprend un boîtier (3), une plaque de recouvrement (4) et un noyau d'électrode. Le boîtier (3) comprnd une ouverture (32) et est pourvu d'une cavité d'expansion de boîtier (31) faisant saillie vers l'extérieur. L'ouverture (32) est recouverte par la plaque de recouvrement (4). Le noyau d'électrode est disposé dans le boîtier (3) et comprend un corps de noyau d'électrode (1) ayant une première extrémité d'expansion (12). La première extrémité d'expansion (12) est pourvue d'une région d'ajustement de structure de refroidissement (121) et d'une première région d'expansion (122) faisant saillie par rapport à la région d'ajustement de structure de refroidissement (121). La première région d'expansion (122) est au moins partiellement logée dans la cavité d'expansion de boîtier (31), et la région d'ajustement de structure de refroidissement (121) est en retrait par rapport à la première région d'expansion (122) pour former un espace d'installation de structure de refroidissement.
PCT/CN2019/070631 2018-01-08 2019-01-07 Cellule de batterie, module de batterie et automobile WO2019134698A1 (fr)

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
CN201810015502.X 2018-01-08
CN201810015502 2018-01-08
CN201810016052 2018-01-08
CN201810015503 2018-01-08
CN201810015504 2018-01-08
CN201810016060.0 2018-01-08
CN201810015506 2018-01-08
CN201810016056 2018-01-08
CN201810015503.4 2018-01-08
CN201810016520.X 2018-01-08
CN201810015504.9 2018-01-08
CN201810016052.6 2018-01-08
CN201810016056.4 2018-01-08
CN201810016520 2018-01-08
CN201810016060 2018-01-08
CN201810015506.8 2018-01-08
CN201810475762.5 2018-05-17
CN201810475762.5A CN110021776B (zh) 2018-01-08 2018-05-17 电池单元、电池模组及汽车

Publications (1)

Publication Number Publication Date
WO2019134698A1 true WO2019134698A1 (fr) 2019-07-11

Family

ID=67143835

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2019/070631 WO2019134698A1 (fr) 2018-01-08 2019-01-07 Cellule de batterie, module de batterie et automobile

Country Status (1)

Country Link
WO (1) WO2019134698A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111341954A (zh) * 2020-03-13 2020-06-26 苏州清陶新能源科技有限公司 一种软包电池模组及其装配方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130084540A (ko) * 2012-01-17 2013-07-25 주식회사 엘지화학 공정 양품률이 향상된 이차전지
CN203225318U (zh) * 2013-03-27 2013-10-02 比亚迪股份有限公司 一种电池模组
CN105428750A (zh) * 2014-09-15 2016-03-23 株式会社Lg化学 电池模块、电池组和包括电池组的装置
CN206727177U (zh) * 2017-03-16 2017-12-08 宁德时代新能源科技股份有限公司 二次电池及电池包

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130084540A (ko) * 2012-01-17 2013-07-25 주식회사 엘지화학 공정 양품률이 향상된 이차전지
CN203225318U (zh) * 2013-03-27 2013-10-02 比亚迪股份有限公司 一种电池模组
CN105428750A (zh) * 2014-09-15 2016-03-23 株式会社Lg化学 电池模块、电池组和包括电池组的装置
CN206727177U (zh) * 2017-03-16 2017-12-08 宁德时代新能源科技股份有限公司 二次电池及电池包

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111341954A (zh) * 2020-03-13 2020-06-26 苏州清陶新能源科技有限公司 一种软包电池模组及其装配方法

Similar Documents

Publication Publication Date Title
CN110021776B (zh) 电池单元、电池模组及汽车
KR101792675B1 (ko) 배터리 모듈
KR100649561B1 (ko) 케이스와 이차전지 및 전지 모듈
KR100717751B1 (ko) 이차 전지 모듈
WO2020151709A1 (fr) Unité de batterie, module de batterie et automobile
EP3836270A1 (fr) Bloc-batterie
WO2019134697A1 (fr) Unité de batterie, module de batterie, et véhicule
CN102082241B (zh) 二次电池
WO2019134699A1 (fr) Module de batterie et automobile
EP2728642A1 (fr) Bloc-batteries
WO2019134698A1 (fr) Cellule de batterie, module de batterie et automobile
WO2019134700A1 (fr) Élément de batterie, module de batterie et automobile
WO2019134701A1 (fr) Élément de batterie, module de batterie et automobile
CN112909403A (zh) 电池模块
KR102664632B1 (ko) 배터리 유닛, 배터리 모듈 및 자동차
CN219739109U (zh) 下塑胶、端盖组件、电池和储能装置
CN220821414U (zh) 接触器组件和具有其的电池包
CN219321572U (zh) 电池单体、电池及用电装置
CN213546408U (zh) 电池模组和电池包
CN219642885U (zh) 电池单体、电池模组和车辆
CN219643080U (zh) 电池单体、电池模组和车辆
CN220021552U (zh) 电池单体、电池模组和车辆
CN218586290U (zh) 电芯结构和动力电池
CN219534594U (zh) 一种单体电池及电池模块
CN220172331U (zh) 电池、电池包及用电装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 19735818

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 19735818

Country of ref document: EP

Kind code of ref document: A1