JP2023015293A - 電池積層体 - Google Patents
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- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/521—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the material
- H01M50/522—Inorganic material
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- H—ELECTRICITY
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- 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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
-
- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
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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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
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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
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
- H01M50/293—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
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- 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
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- 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
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- 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
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- 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
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Abstract
Description
図1は、実施の形態1に係る電池積層体の概略構造を示す斜視図である。電池積層体1(1A)は、複数のバスバー2と、バスバー2により互いに電気的に接続された複数の電池4とを備える。
実施の形態2に係る電池積層体は、バスバーの構造が異なる点を除き、実施の形態1と共通の構成を有する。以下、本実施の形態に係る電池積層体について実施の形態1と異なる構成を中心に説明し、共通する構成については簡単に説明するか、あるいは説明を省略する。
実施の形態3に係る電池積層体は、バスバーの構造が異なる点を除き、実施の形態1と共通の構成を有する。以下、本実施の形態に係る電池積層体について実施の形態1と異なる構成を中心に説明し、共通する構成については簡単に説明するか、あるいは説明を省略する。
実施の形態4に係る電池積層体は、実施の形態1のバスバーと実施の形態3のバスバーとを組み合わせた形状のバスバーを備える点を除き、実施の形態1または3と共通の構成を有する。以下、本実施の形態に係る電池積層体について実施の形態1と異なる構成を中心に説明し、共通する構成については簡単に説明するか、あるいは説明を省略する。
実施の形態5に係る電池積層体は、バスバーの構造が異なる点を除き、実施の形態1と共通の構成を有する。以下、本実施の形態に係る電池積層体について実施の形態1と異なる構成を中心に説明し、共通する構成については簡単に説明するか、あるいは説明を省略する。
2 バスバー
4 電池
4a 第1電池
4b 第2電池
16 本体部
18 接続部
18a 第1接続部
18b 第2接続部
20 電池ユニット
20a 第1電池ユニット
20b 第2電池ユニット
28 変位吸収部
Claims (8)
- 積層された複数の電池と、
前記複数の電池を電気的に接続するバスバーと、を備え、
前記バスバーは、前記電池の積層方向に延在する本体部と、前記本体部から前記積層方向と交わる方向に突出し、各電池の端子に電気的に接続される接続部と、を有し、
前記接続部は、前記本体部が前記端子の直上からずれた位置に配置されるように前記本体部から突出し、前記複数の電池は、少なくとも2つの電池で構成される複数の電池ユニットに組み分けられ、各電池ユニットにおいて電池同士が前記バスバーで並列接続され、電池ユニット同士が前記バスバーで直列接続され、
前記本体部における前記複数の電池とは反対側を向く面は、第1領域および第2領域を含み、
前記第1領域および前記第2領域は、前記電池の積層方向に並ぶとともに、前記積層方向において前記第1領域が前記第2領域よりも前記本体部の端部側に位置し、
前記電池ユニットに含まれる第1電池と第2電池とに対して、前記第1領域は、前記第1電池と重なるとともに前記第1電池の端子に接続される前記接続部と当該接続部の突出方向に並び、前記第2領域は、前記第2電池と重なるとともに前記第2電池の端子に接続される前記接続部と当該接続部の突出方向に並び、
前記電池ユニットおよび前記バスバーが並ぶ方向において、前記第2領域は前記第1領域よりも前記電池ユニット側に位置する電池積層体。 - 前記積層方向における各接続部の断面積は、前記積層方向と交わる方向における前記本体部の断面積よりも小さい請求項1に記載の電池積層体。
- 前記接続部は、第1接続部と第2接続部とを含み、
前記複数の電池ユニットは、前記バスバーにより直列接続される第1電池ユニットと第2電池ユニットとを含み、
前記第1電池ユニットは、前記第1接続部が接続される第1電池と、前記第1電池よりも前記第2電池ユニットに近く前記第2接続部が接続される第2電池とを含み、
前記第1接続部と前記第2接続部とは、各接続部と各電池との接点から前記第2接続部と前記本体部との接点までの電気抵抗の差が、前記第1接続部と前記第2接続部とが同一形状を有する場合よりも小さくなる形状を有する請求項1または2に記載の電池積層体。 - 前記第1接続部と前記第2接続部とは、断面積の大きさが異なる請求項3に記載の電池積層体。
- 前記バスバーは、バスバーによって電気的に接続される電池間の相対的な変位を吸収する変位吸収部を有する請求項1乃至4のいずれか1項に記載の電池積層体。
- 前記変位吸収部は、電池に対し近接離間する方向に延伸する部分を有する請求項5に記載の電池積層体。
- 前記バスバーは、前記電池ユニット同士を直列接続する領域における電気抵抗が前記電池同士を並列接続する領域における電気抵抗よりも小さくなる形状を有する請求項1乃至6のいずれか1項に記載の電池積層体。
- 前記本体部は、前記第2領域を含む部分の電気抵抗よりも前記第1領域を含む部分の電気抵抗の方が低い請求項1乃至7のいずれか1項に記載の電池積層体。
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JP2017243049 | 2017-12-19 | ||
JP2017243049 | 2017-12-19 | ||
PCT/JP2018/045028 WO2019124107A1 (ja) | 2017-12-19 | 2018-12-07 | バスバー及び電池積層体 |
JP2019560962A JP7186366B2 (ja) | 2017-12-19 | 2018-12-07 | 電池積層体 |
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JP (2) | JP7186366B2 (ja) |
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CN110911624B (zh) * | 2018-09-14 | 2024-09-10 | 宁德时代新能源科技股份有限公司 | 电池模组及其汇流组件 |
JP7474619B2 (ja) | 2020-03-24 | 2024-04-25 | 日本特殊陶業株式会社 | 組電池 |
KR20220001989A (ko) * | 2020-06-30 | 2022-01-06 | 주식회사 엘지에너지솔루션 | 배터리 모듈, 그것을 포함하는 배터리 팩, 및 자동차 |
JP7540314B2 (ja) * | 2020-12-03 | 2024-08-27 | トヨタ自動車株式会社 | 電磁波遮蔽構造 |
CN114883754B (zh) * | 2021-02-05 | 2024-09-20 | 奥迪股份公司 | 汇流排以及相应的电池系统和车辆 |
CN113725560A (zh) * | 2021-07-23 | 2021-11-30 | 浙江南都电源动力股份有限公司 | 软包电池连接板、极耳焊接工装及其焊接方法 |
DE102022201397A1 (de) | 2022-02-10 | 2023-08-10 | Volkswagen Aktiengesellschaft | Akkumulator, insbesondere für ein Kraftfahrzeug |
KR20240148182A (ko) * | 2023-04-03 | 2024-10-11 | 삼성에스디아이 주식회사 | 이차전지 팩 |
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US20230268596A1 (en) | 2023-08-24 |
CN111033808B (zh) | 2023-04-14 |
JP7186366B2 (ja) | 2022-12-09 |
JPWO2019124107A1 (ja) | 2020-10-22 |
CN111033808A (zh) | 2020-04-17 |
WO2019124107A1 (ja) | 2019-06-27 |
JP7519597B2 (ja) | 2024-07-22 |
US20200212404A1 (en) | 2020-07-02 |
CN116247384A (zh) | 2023-06-09 |
US11677114B2 (en) | 2023-06-13 |
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