WO2014091773A1 - 電池ケース用の蓋体 - Google Patents
電池ケース用の蓋体 Download PDFInfo
- Publication number
- WO2014091773A1 WO2014091773A1 PCT/JP2013/056624 JP2013056624W WO2014091773A1 WO 2014091773 A1 WO2014091773 A1 WO 2014091773A1 JP 2013056624 W JP2013056624 W JP 2013056624W WO 2014091773 A1 WO2014091773 A1 WO 2014091773A1
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- WIPO (PCT)
- Prior art keywords
- battery case
- lid body
- annular thin
- lid
- thin portion
- Prior art date
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Classifications
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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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/342—Non-re-sealable arrangements
- H01M50/3425—Non-re-sealable arrangements in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member
-
- 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 of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/155—Lids or covers characterised by the material
- H01M50/157—Inorganic material
- H01M50/159—Metals
-
- 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
-
- 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 a battery case cover made of a metal plate constituting a battery case of the battery.
- FIG. 6 is an exploded perspective view showing a battery case in which a conventional lid is used.
- a lid 1 constitutes a battery case 3 together with a bottomed cylindrical case body 2.
- the lid 1 and the case body 2 are made of a metal plate such as aluminum, an aluminum alloy, a nickel-plated steel plate, or stainless steel.
- the lid body 1 is provided with a lid body 4 and a safety valve 5.
- the lid body 4 is a planar portion formed in a rectangular shape having a short side 40 and a long side 41 when viewed in a plane.
- the safety valve 5 is used when the pressure in the battery case 3 exceeds a predetermined value in order to prevent the pressure in the battery case 3 (hereinafter referred to as case pressure) from rising and the battery case 3 from rupturing. This is for cleaving and releasing the pressure in the battery case 3 to the outside.
- the safety valve 5 includes an annular thin portion 50 that is formed integrally with the lid body 4 by coining (pressing) that presses a stamping punch against a metal plate that is a material of the lid 1. When the pressure in the battery case 3 exceeds a predetermined value, the safety valve 5 is opened by breaking the whole or most of the annular thin portion 50.
- the inventor of the present application is due to the fact that the annular thin portion 50 is integrally formed by coining on the lid body 4 made of a metal plate while repeatedly making the prototype of the battery case 3 and checking the operation of the safety valve 5 as described above. As a result, it has been found that unique problems arise.
- FIG. 7 is an explanatory view showing a deformation of the lid body 1 of FIG. 6 when the pressure in the case increases.
- the lid body 4 of the lid body 1 extends along the longitudinal direction 4 b of the lid body 4 at the approximate center along the short direction 4 a of the lid body 4. It is deformed like a mountain so as to form an extending ridgeline 4c. For this reason, the tensile stress applied to the annular thin portion 50 of the safety valve 5 disposed at the center of the lid body 4 is higher in the short direction than in the longitudinal direction.
- the present invention has been made in order to solve the above-described problems, and its purpose is to avoid excessive stress concentration on a part of the annular thin-walled portion, and to more reliably cleave the safety valve.
- the object is to provide a lid for a battery case.
- the battery case cover according to the present invention is a battery case cover made of a metal plate constituting the battery case, and is formed in a rectangular shape having a short side and a long side when viewed in a plane. Includes a lid body and an annular thin part integrally formed with the lid body by coining, and when the pressure in the battery case exceeds a predetermined value, it is cleaved to release the pressure in the battery case to the outside
- a safety valve and an overhang formed integrally with the lid body so as to project from the lid body, and the overhanging portion includes a vertical wall extending from the lid body, and a vertical wall And a flat portion provided at the end of the vertical wall so as to be surrounded by the periphery, and the safety valve is provided in the flat portion of the overhanging portion.
- the safety valve is provided on the flat portion of the projecting portion formed integrally with the lid body so as to project from the lid body, so that the pressure in the case increases. Even in this case, deformation of the peripheral region of the annular thin portion can be suppressed to a small level. Thereby, it can avoid that stress concentrates on a part of annular thin part, and a safety valve can be more reliably cleaved.
- FIG. 1 It is a perspective view which shows the cover body for battery cases by Embodiment 1 of this invention. It is a top view which shows the cover body of FIG. FIG. 3 is a sectional view taken along line III-III in FIG. 2. It is explanatory drawing which shows a deformation
- FIG. 1 is a perspective view showing a lid 1 for battery case 3 according to Embodiment 1 of the present invention
- FIG. 2 is a plan view showing lid 1 of FIG. 1
- FIG. 3 is a line III of FIG. It is sectional drawing which follows -III.
- the same or equivalent parts as those of the conventional battery case lid (see FIGS. 6 and 7) will be described using the same reference numerals.
- a lid body 1 shown in FIG. 1 constitutes a battery case 3 (see FIG. 6) for accommodating an electrolyte in a battery such as a lithium ion battery, for example, together with a bottomed cylindrical case body 2 (see FIG. 6).
- the lid body 1 is composed of a stainless steel metal plate as a whole.
- the lid 1 has a lid body 4, a safety valve 5, and an overhang portion 6.
- the lid body 4 is a substantially flat plate portion formed in a rectangular shape having a short side 40 and a long side 41 when viewed in a plane as shown in FIG.
- a side wall 42 is erected from the outer edge of the lid body 4 along the thickness direction of the lid body 4.
- a flange portion 43 is bent at a substantially right angle from the tip end portion of the side wall portion 42.
- the safety valve 5 includes an annular thin portion 50 and a bent portion 51.
- the annular thin portion 50 is an oval groove that constitutes the edge of the safety valve 5, and is integrally formed with the lid body 4 by performing multiple stages of coining on the metal plate that is the material of the lid 1. Is formed. As shown in FIG. 3, the annular thin portion 50 is thinner than the other plate surfaces in the lid 1, and the annular thin portion 50 is optimal when the internal pressure of the battery case 3 exceeds a predetermined value. It tears first, and the safety valve 5 whole is opened.
- the bent portion 51 is a plate portion on the inner peripheral side of the annular thin portion 50, and is bent and deformed along the plate thickness direction by absorbing a surplus when the annular thin portion 50 is formed by coining. (See FIG. 3).
- the overhanging portion 6 is formed integrally with the lid body 4 so as to overhang from the lid body 4 by, for example, an overhanging process such as pressing.
- the overhang portion 6 includes a vertical wall 60 and a flat portion 61.
- the vertical wall 60 is a wall body that extends from the lid body 4 along the thickness direction of the lid body 4.
- the flat portion 61 is a flat plate portion provided at the end of the vertical wall 60 so as to be surrounded by the vertical wall 60, and is formed in a rectangular shape when viewed in plan as shown in FIG. ing. That is, in the present embodiment, the overhang portion 6 is formed in a square tube shape having a quadrangular cross section as a whole.
- the vertical wall 60 is preferably extended vertically from the lid body 4 along the thickness direction of the lid body 4.
- the lid body 4 when the pressure in the case (pressure in the battery case 3) rises, the lid body 4 extends along the longitudinal direction 4b in the approximate center along the short direction 4a.
- the safety valve 5 annular thin portion 50
- the safety valve 5 is provided on the flat portion 61 of the overhang portion 6.
- the length 8 (see FIG. 2) of the flat portion 61 along the short direction 4a is 0.75 W or less when the length of the short side 40 of the lid body 4 is W.
- the height 9 (see FIG. 3) of the vertical wall 60 along the plate thickness direction of the lid body 4 is set to 1.25 t or more when the plate thickness of the lid body 4 is t.
- the length 10 in the longitudinal direction (see FIG. 2) of the flat portion 61 along the longitudinal direction 4b is 1.5 W or less. The significance of these dimensions will be shown in the examples described later.
- the overhang portion 6 may be formed so as to protrude toward the outside of the battery case 3, or may protrude toward the inside. May be formed. However, it is preferably formed so as to protrude toward the inside of the battery case 3. If the overhang portion 6 is formed toward the inside of the battery case 3, it is possible to obtain greater rigidity with respect to the stress acting on the overhang portion 6 due to an increase in the case internal pressure.
- the annular thin portion 50 has a point-symmetric shape, and the center position 50a (center point) of the annular thin portion 50 is an intersection of two diagonal lines 6b that connect opposite corners of the flat portion 61. 6c (see FIG. 2).
- the intersection 6c of the diagonal line 6b coincide with the center position 50a of the annular thin portion 50, when the peripheral region of the annular thin portion 50 is deformed, the stress is evenly distributed over the entire annular thin portion 50. It can be dispersed.
- FIG. 4 is an explanatory view showing a deformation of the lid body 1 of FIG. 1 when the pressure in the case increases.
- the annular thin portion 50 and its peripheral region are provided on the flat portion 61 (inside the vertical wall 60) of the overhang portion 6, so that the lid body can be used even when the pressure in the case increases.
- the deformation of the main body 4 is difficult to reach the annular thin portion 50 and its peripheral region.
- the deformation of the peripheral region of the annular thin portion 50 is suppressed to be small compared to the conventional configuration, and excessive stress is applied to a part of the annular thin portion 50 due to the deformation of the lid body 4 when the pressure in the case increases. Concentration can be avoided. Thereby, it can prevent that only a part of annular thin-walled part 50 fractures
- the present inventors manufactured a lid 1 shown in FIG. 1 using a SUS430 plate having a thickness of 0.8 mm as a material, and welded the lid 1 to the case body 2 to fabricate a battery case 3.
- the long side 41 of the lid body 4 was 160 mm
- the short side 40 of the lid body 4 was 40 mm
- the overall height of the battery case 3 was 100 mm.
- W be the length of the short side 40 of the lid body 4. This length W is a reference length that should be taken into account in defining the shape of the overhanging portion 6 of the present invention.
- the annular thin portion 50 of the safety valve 5 was an ellipse of 10 mm ⁇ 15 mm, and the thickness of the thinnest portion of the annular thin portion 50 was 50 ⁇ m by multistage coining.
- the operating internal pressure of the safety valve 5 was set to a range of 0.8 to 1.4 MPa.
- the overhanging portion 6 was formed so as to protrude toward the inside of the battery case 3 at a position as shown in FIG.
- the dimensions of the overhanging portion 6 are such that the length 8 in the short direction of the flat portion 61 along the short direction 4a is 20 mm, the height 9 of the vertical wall 60 is 2 mm, and the length 10 in the longitudinal direction of the flat portion 61 is It was set to 24 mm.
- the punch R and the die R were 2 mm, and the corner portion R of the substantially rectangular overhang portion was 3 mm.
- a battery case 3 using a conventional lid that is not provided with the overhang portion 6 was also manufactured for comparison.
- a hydraulic pressure tester is connected to the bottom surface of the battery case 3 (the surface facing the lid 1), and the battery case 3 is not restrained around the battery case 3. Pressure was applied.
- the operating state and operating pressure results of the safety valve 5 are shown in Table 1 below. In addition, the cleavage state of the safety valve 5 was visually determined.
- the safety valve 5 Although normal cleavage was confirmed, when the length 10 in the longitudinal direction was 70 mm (when the length 10 in the longitudinal direction was larger than 1.5 W), a part of the annular thin portion 50 was broken and a slow leak occurred. If the length 10 in the longitudinal direction of the flat portion 61 is long, it is considered that the rigidity of the peripheral region of the annular thin portion 50 could not be secured, and the deformation of the region could not be suppressed small.
- the annular thin portion 50 is provided on the flat portion 61 of the overhang portion 6 formed integrally with the lid body 4 so as to project from the lid body 4. Therefore, even when the pressure in the case increases, the deformation of the peripheral region of the annular thin portion 50 can be suppressed to a small level. Thereby, it can avoid that stress concentrates on a part of annular thin part 50, and a safety valve can be more reliably cleaved.
- the metal plate which comprises the cover body 1 is stainless steel, since stainless steel is high intensity
- the safety valve 5 can be more reliably cleaved by providing the annular thin portion 50 and its peripheral region on the flat portion 61 of the overhang portion 6. That is, the present invention is particularly effective when the metal plate constituting the lid 1 is stainless steel.
- the length 8 in the short direction of the flat part 61 is set to 0.75 W or less
- the height 9 of the vertical wall 60 is set to 1.25 t or more
- the length 10 in the longitudinal direction of the flat part 61 is 1.5 W or less. Therefore, excessive concentration of stress on a part of the annular thin portion 50 can be avoided more reliably, and the safety valve 5 can be more reliably cleaved.
- projection part 6 is formed so that it may protrude toward the inside of the battery case 3 from the cover main body 4, it is more with respect to the stress which acts on the overhang
- FIG. FIG. 5 is a plan view showing lid 1 for a battery case according to Embodiment 2 of the present invention.
- the center position 50a (center point) of the annular thin portion 50 is arranged so as to coincide with the intersection 6c of the two diagonal lines 6b connecting the opposite corners of the flat portion 61 (see FIG. 2)
- the intersection 6c of two diagonal lines 6b connecting the corners of the flat portion 61 does not coincide with the inside of the annular thin portion 50 and the center position 50a of the annular thin portion 50.
- the inside of the annular thin portion 50 includes not only the inside of the annular thin portion 50 but also the annular thin portion 50 itself. Other configurations are the same as those in the first embodiment.
- the annular thin portion 50 when the annular thin portion 50 is arranged so that the center position 50 a is located on the right side of the intersection 6 c, it can be configured such that the fracture starts from the left end of the annular thin portion 50. At this time, by adjusting the amount of deviation, it is possible to keep a part of the annular thin portion 50 connected to the lid body 4 while breaking most of the annular thin portion 50. With this configuration, even when the safety valve 5 is cleaved, the safety valve 5 can be prevented from falling off the battery case 3.
- the annular thin portion 50 has an intersection 6 c between two diagonal lines 6 b connecting the corners of the flat portion 61 with the center position 50 a of the annular thin portion 50 and the center position 50 a of the annular thin portion 50. Since it is arrange
Abstract
Description
実施の形態1.
図1は本発明の実施の形態1による電池ケース3用の蓋体1を示す斜視図であり、図2は図1の蓋体1を示す平面図であり、図3は図2の線III-IIIに沿う断面図である。なお、従来の電池ケース用の蓋体(図6及び図7参照)と同一又は同等部分については同一の符号を用いて説明する。図1に示す蓋体1は、有底筒状のケース本体2(図6参照)とともに、例えばリチウムイオン電池等の電池において電解液を収容するための電池ケース3(図6参照)を構成するものである。蓋体1は、全体としてステンレス鋼製の金属板により構成されている。
また、安全弁5の環状薄肉部50は10mm×15mmの長楕円とし、多段コイニングにより環状薄肉部50の最薄部の厚さを50μmとした。安全弁5の作動内圧は0.8~1.4MPaの範囲を目標とした。
図5は、本発明の実施の形態2による電池ケース用の蓋体1を示す平面図である。実施の形態1では、環状薄肉部50の中心位置50a(中心点)が平坦部61の相対する角を結ぶ2つの対角線6bの交点6cと一致するように配置されていると説明したが(図2参照)、この実施の形態2では、環状薄肉部50は、平坦部61の角を結ぶ2つの対角線6bの交点6cが環状薄肉部50の内部かつ環状薄肉部50の中心位置50aと一致しない位置に配置されている。なお、環状薄肉部50の内部とは、環状薄肉部50の内側のみならず、環状薄肉部50自体も含む。その他の構成は、実施の形態1と同様である。
Claims (5)
- 電池ケース(3)を構成する金属板からなる電池ケース用の蓋体であって、
平面で見たときに短辺(40)及び長辺(41)を有する矩形状に形成された蓋体本体(4)と、
コイニング加工により前記蓋体本体(4)と一体に形成された環状薄肉部(50)を含み、前記電池ケース(3)内の圧力が所定値を超えた場合に開裂して前記電池ケース(3)内の圧力を外部へと開放する安全弁(5)と、
前記蓋体本体(4)から張り出すように前記蓋体本体(4)と一体に形成された張出部(6)と
を備え、
前記張出部(6)には、前記蓋体本体(4)から延出されたたて壁(60)と、前記たて壁(60)に周囲を囲まれるように前記たて壁(60)の端部に設けられた平坦部(61)とが含まれており、
前記安全弁(5)は、前記張出部(6)の前記平坦部(61)に設けられている、
電池ケース用の蓋体。 - 前記蓋体本体(4)の短手方向(4a)に沿う前記平坦部(61)の短手方向長さ(8)は、前記短辺(40)の長さをWとした場合に0.75W以下とされ、
前記蓋体本体(4)の板厚方向に沿う前記たて壁(60)の高さ(9)は、前記蓋体本体(4)の板厚をtとした場合に1.25t以上とされ、
前記蓋体本体(4)の長手方向(4b)に沿う前記平坦部(61)の長手方向長さ(10)は、1.5W以下とされている、
請求項1記載の電池ケース用の蓋体。 - 前記平坦部(61)は、平面で見たときに矩形状に設けられており、
前記環状薄肉部(50)は、前記平坦部(61)の角を結ぶ2つの対角線(6b)の交点(6c)が前記環状薄肉部(50)の内部かつ前記環状薄肉部(50)の中心位置(50a)と一致しない位置に配置されている、請求項1又は請求項2に記載の電池ケース用の蓋体。 - 前記張出部(6)は、前記蓋体本体(4)から前記電池ケース(3)の内部に向かって張り出すように形成されている、請求項1から請求項3までのいずれか1項に記載の電池ケース用の蓋体。
- 前記金属板がステンレス鋼である、請求項1から請求項4までのいずれか1項に記載の電池ケース用の蓋体。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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DE112013005912.6T DE112013005912B4 (de) | 2012-12-11 | 2013-03-11 | Deckel für Batteriegehäuse |
CN201380064940.0A CN104871340B (zh) | 2012-12-11 | 2013-03-11 | 电池壳用的盖体 |
US14/650,980 US10008703B2 (en) | 2012-12-11 | 2013-03-11 | Lid for battery case with a safety valve |
KR1020157017291A KR101861907B1 (ko) | 2012-12-11 | 2013-03-11 | 전지 케이스용의 덮개체 |
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JP2012-270158 | 2012-12-11 | ||
JP2012270158A JP5542192B2 (ja) | 2012-12-11 | 2012-12-11 | 電池ケース用の蓋体 |
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WO2014091773A1 true WO2014091773A1 (ja) | 2014-06-19 |
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US (1) | US10008703B2 (ja) |
JP (1) | JP5542192B2 (ja) |
KR (1) | KR101861907B1 (ja) |
CN (1) | CN104871340B (ja) |
DE (1) | DE112013005912B4 (ja) |
WO (1) | WO2014091773A1 (ja) |
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WO2023276558A1 (ja) * | 2021-06-29 | 2023-01-05 | 日本軽金属株式会社 | 電池ケース |
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KR102629178B1 (ko) | 2016-09-20 | 2024-01-26 | 삼성에스디아이 주식회사 | 엠보싱 처리된 안전벤트를 갖는 이차 전지 |
US11367933B2 (en) | 2017-01-25 | 2022-06-21 | Sanyo Electric Co., Ltd. | Secondary battery |
WO2019044633A1 (ja) * | 2017-08-29 | 2019-03-07 | 株式会社Gsユアサ | 蓄電素子及び蓄電装置 |
WO2019151494A1 (ja) * | 2018-02-02 | 2019-08-08 | Tdk株式会社 | 非水電解液二次電池 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001325933A (ja) * | 2000-05-16 | 2001-11-22 | Alps Electric Co Ltd | 電池用安全弁 |
JP2004095268A (ja) * | 2002-08-30 | 2004-03-25 | Sony Corp | 非水電解質二次電池 |
JP2009004271A (ja) * | 2007-06-22 | 2009-01-08 | Kobe Steel Ltd | 電池ケース |
JP2009140753A (ja) * | 2007-12-06 | 2009-06-25 | Fuji Hatsujo Kk | アルミ角形2次電池ケース |
JP2012212569A (ja) * | 2011-03-31 | 2012-11-01 | Nisshin Steel Co Ltd | 電池ケースの蓋体製造方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3108360B2 (ja) * | 1996-02-15 | 2000-11-13 | 福田金属箔粉工業株式会社 | 電池用安全弁素子および安全弁付き電池ケース蓋 |
JP2000285892A (ja) * | 1999-03-31 | 2000-10-13 | Toshiba Electronic Engineering Corp | 非水電解液二次電池 |
JP2004094268A (ja) * | 2003-10-03 | 2004-03-25 | Yamaha Corp | カラオケ装置 |
JP2007179793A (ja) * | 2005-12-27 | 2007-07-12 | Denso Corp | 密閉型電池用蓋体 |
KR20090099241A (ko) * | 2008-03-17 | 2009-09-22 | 삼성에스디아이 주식회사 | 캡 조립체 및 이를 구비하는 이차 전지 |
JP4386139B1 (ja) * | 2008-08-20 | 2009-12-16 | トヨタ自動車株式会社 | 電池 |
JP5237341B2 (ja) * | 2010-09-24 | 2013-07-17 | 日新製鋼株式会社 | 電池の安全弁 |
JP5250138B2 (ja) * | 2011-08-09 | 2013-07-31 | 日新製鋼株式会社 | 電池ケース用の蓋体 |
-
2012
- 2012-12-11 JP JP2012270158A patent/JP5542192B2/ja active Active
-
2013
- 2013-03-11 WO PCT/JP2013/056624 patent/WO2014091773A1/ja active Application Filing
- 2013-03-11 KR KR1020157017291A patent/KR101861907B1/ko active IP Right Grant
- 2013-03-11 US US14/650,980 patent/US10008703B2/en active Active
- 2013-03-11 DE DE112013005912.6T patent/DE112013005912B4/de active Active
- 2013-03-11 CN CN201380064940.0A patent/CN104871340B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001325933A (ja) * | 2000-05-16 | 2001-11-22 | Alps Electric Co Ltd | 電池用安全弁 |
JP2004095268A (ja) * | 2002-08-30 | 2004-03-25 | Sony Corp | 非水電解質二次電池 |
JP2009004271A (ja) * | 2007-06-22 | 2009-01-08 | Kobe Steel Ltd | 電池ケース |
JP2009140753A (ja) * | 2007-12-06 | 2009-06-25 | Fuji Hatsujo Kk | アルミ角形2次電池ケース |
JP2012212569A (ja) * | 2011-03-31 | 2012-11-01 | Nisshin Steel Co Ltd | 電池ケースの蓋体製造方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023276558A1 (ja) * | 2021-06-29 | 2023-01-05 | 日本軽金属株式会社 | 電池ケース |
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KR101861907B1 (ko) | 2018-05-28 |
CN104871340A (zh) | 2015-08-26 |
DE112013005912B4 (de) | 2021-03-11 |
KR20150093720A (ko) | 2015-08-18 |
CN104871340B (zh) | 2017-05-31 |
JP2014116220A (ja) | 2014-06-26 |
US20150311488A1 (en) | 2015-10-29 |
JP5542192B2 (ja) | 2014-07-09 |
DE112013005912T5 (de) | 2015-09-10 |
US10008703B2 (en) | 2018-06-26 |
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