JP7184439B2 - 電池パックの製造方法 - Google Patents
電池パックの製造方法 Download PDFInfo
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- H01M10/60—Heating or cooling; Temperature control
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- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/04—Feeding of the material to be moulded, e.g. into a mould cavity
- B29C31/06—Feeding of the material to be moulded, e.g. into a mould cavity in measured doses, e.g. by weighting
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- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
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- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
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- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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Description
本発明は電池パックの製造方法に関するものであり、具体的に電池セルと電池パックハウジングとの間の熱伝導体の役割をする高分子樹脂の適切な注入量を測定する過程を含む電池パックの製造方法に関するものである。
また、高分子樹脂の過注入によって電池パックの重さが必要以上に増加することを防止することができる。
110、210、410、510 U形フレーム
120、220、420、520 平板型プレート
140 エンドプレート
141 電極端子
211 ベース部
212 第1側壁
213 第2側壁
230、330、430、530 セル積層体
231 パウチ型電池セル
232、332、432 最小突出部
233、333、433 最大突出部
335 セル積層体の輪郭線
250、450、550 高分子樹脂
421 U形フレームが結合される部分
422 高分子樹脂が塗布される部分
551 支持部
Z 平板型プレートとセル積層体との間の長さ
Z’ 平板型プレートとセル積層体との間の長さの補正長
D 高分子樹脂の余分厚さ
M0 セル積層体の最小突出部と最大突出部との間の間隔
M1 セル積層体の最大突出部からU形フレームの側壁端までの長さ
M2 平板型プレートにおいて高分子樹脂が塗布される部分とU形フレームが結合される部分との間の段差
Claims (10)
- (a)電池セルを積層してセル積層体を形成する段階と、
(b)前記セル積層体とU形フレームを結合する段階と、
(c)前記U形フレームと結合する平板型プレートとセル積層体との間の空間の容積を測定する段階と、
(d)前記段階(c)で測定された容積の分だけの高分子樹脂を前記平板型プレートの内側面に塗布する段階と、
を含み、
前記段階(c)は、前記平板型プレートとセル積層体との間の長さを測定して補正長を求め、前記補正長にセル積層体の面積を掛ける過程を含み、
前記平板型プレートとセル積層体との間の補正長Z’は下記のような式(1)によって定義される平板型プレートとセル積層体との間の長さZに公差範囲を反映した最大値と最小値の平均値である、電池パックの製造方法。
Z=(M0+M1-M2)…式(1)
前記式(1)で、前記Zは前記平板型プレートと前記セル積層体との間の長さ、前記M0は前記セル積層体の最大突出部と最小突出部との間の間隔、前記M1は前記セル積層体の最大突出部から前記U形フレームの側壁端までの長さ、前記M2は前記平板型プレートにおいて高分子樹脂が塗布される部分と前記U形フレームが結合される部分との間の段差である。 - 前記段階(c)は、透視撮影装置を用いてセル積層体の輪郭線を撮影する過程を含む、請求項1に記載の電池パックの製造方法。
- 前記段階(c)は、セル積層体の最大突出部と最小突出部の位置を撮影して突出部の突出長公差を求める過程を含む、請求項2に記載の電池パックの製造方法。
- 前記段階(c)は、セル積層体の輪郭線からU形フレームの端部までの長さを測定する過程を含む、請求項1から3のいずれか一項に記載の電池パックの製造方法。
- 前記段階(b)は、前記U形フレームが前記セル積層体の上面と側面を取り囲むようにセル積層体と結合する過程を含み、
前記U形フレームと結合したセル積層体は、U形フレームのベース部が地面と対面するように配置される、請求項1から4のいずれか一項に記載の電池パックの製造方法。 - (e)U形フレームと平板型プレートを溶接する段階をさらに含む、請求項1から4のいずれか一項に記載の電池パックの製造方法。
- 前記溶接する段階は、前記平板型プレートを下方に押圧してU形フレームの端部と密着するように配置した状態で行う、請求項6に記載の電池パックの製造方法。
- 前記平板型プレートを下方に押圧する過程は、U形フレームの第1側壁及び第2側壁が互いに向かう方向に圧縮する過程を含む、請求項7に記載の電池パックの製造方法。
- 前記高分子樹脂は熱伝導性高分子樹脂である、請求項1から8のいずれか一項に記載の電池パックの製造方法。
- 複数の電池セルが積層されて構成されたセル積層体と、
前記セル積層体を内部に収納するU形フレームと、
前記U形フレームの両側壁の長軸方向の端部と結合する平板型プレートと、
前記U形フレームの両側壁の短縮方向の端部及びベース部と結合するエンドプレートと、
を含み、
前記平板型プレートとセル積層体との間には高分子樹脂が満たされており、
前記平板型プレートとセル積層体との間の補正長Z’は下記のような式(2)によって定義される平板型プレートとセル積層体との間の長さZに公差範囲を反映した最大値と最小値の平均値である電池パック。
Z=(M0+M1-M2)…式(2)
前記式(2)で、前記Zは前記平板型プレートと前記セル積層体との間の長さ、前記M0は前記セル積層体の最大突出部と最小突出部との間の間隔、前記M1は前記セル積層体の最大突出部から前記U形フレームの側壁端までの長さ、前記M2は前記平板型プレートにおいて高分子樹脂が塗布される部分と前記U形フレームが結合される部分との間の段差である。
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Application Number | Priority Date | Filing Date | Title |
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KR10-2019-0003263 | 2019-01-10 | ||
KR1020190003263A KR102694746B1 (ko) | 2019-01-10 | 2019-01-10 | 전지팩 제조방법 |
PCT/KR2020/000218 WO2020145602A1 (ko) | 2019-01-10 | 2020-01-06 | 전지팩 제조방법 |
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JP2021518047A JP2021518047A (ja) | 2021-07-29 |
JP7184439B2 true JP7184439B2 (ja) | 2022-12-06 |
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US (1) | US12119466B2 (ja) |
EP (1) | EP3823081B1 (ja) |
JP (1) | JP7184439B2 (ja) |
KR (1) | KR102694746B1 (ja) |
CN (1) | CN112544009B (ja) |
ES (1) | ES2980366T3 (ja) |
HU (1) | HUE067472T2 (ja) |
PL (1) | PL3823081T3 (ja) |
WO (1) | WO2020145602A1 (ja) |
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US11569541B2 (en) | 2014-06-30 | 2023-01-31 | Black & Decker Inc. | Battery pack for a cordless power tool |
KR20210040719A (ko) * | 2019-10-04 | 2021-04-14 | 주식회사 엘지화학 | 배터리 모듈, 이러한 배터리 모듈을 포함하는 배터리 팩 및 이러한 배터리 팩을 포함하는 자동차 |
WO2021184044A1 (en) | 2020-03-10 | 2021-09-16 | Black & Decker Inc. | Cordless power tool system compatible with multiple battery packs |
KR20220021611A (ko) * | 2020-08-14 | 2022-02-22 | 주식회사 엘지에너지솔루션 | 전지 모듈 및 이를 포함하는 전지팩 |
EP4138192A4 (en) * | 2020-08-21 | 2024-03-27 | LG Energy Solution, Ltd. | Battery module to which heat shrinkable film is applied, and battery pack and vehicle including same |
US20220376341A1 (en) * | 2020-08-26 | 2022-11-24 | Lg Energy Solution, Ltd. | Battery module and method of manufacturing the same |
KR20220081028A (ko) * | 2020-12-08 | 2022-06-15 | 주식회사 엘지에너지솔루션 | 전지 모듈 및 이를 포함하는 전지 팩 |
KR20220102971A (ko) * | 2021-01-14 | 2022-07-21 | 엘지전자 주식회사 | 이차 전지 제조 장치 및 제조 방법 |
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JP2021518047A (ja) | 2021-07-29 |
KR102694746B1 (ko) | 2024-08-12 |
CN112544009B (zh) | 2024-05-17 |
CN112544009A (zh) | 2021-03-23 |
PL3823081T3 (pl) | 2024-07-15 |
EP3823081B1 (en) | 2024-05-01 |
US12119466B2 (en) | 2024-10-15 |
US20210328284A1 (en) | 2021-10-21 |
ES2980366T3 (es) | 2024-10-01 |
KR20200086907A (ko) | 2020-07-20 |
EP3823081A1 (en) | 2021-05-19 |
WO2020145602A1 (ko) | 2020-07-16 |
EP3823081A4 (en) | 2022-08-03 |
HUE067472T2 (hu) | 2024-10-28 |
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