JP2021515534A - 二次電池の過充電防止装置及び方法 - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
- H02J7/007182—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters in response to battery voltage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/14—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
- H02J7/1469—Regulation of the charging current or voltage otherwise than by variation of field
- H02J7/1492—Regulation of the charging current or voltage otherwise than by variation of field by means of controlling devices between the generator output and the battery
-
- 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
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/40—The network being an on-board power network, i.e. within a vehicle
- H02J2310/46—The network being an on-board power network, i.e. within a vehicle for ICE-powered road vehicles
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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
- 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
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
Description
10:セルアセンブリ
50:外部装置
100:電圧測定部
200:充電FET
300:バイパス抵抗
400:プロセッサ
500:メモリデバイス
L1:充放電ライン
L2:バイパスライン
Claims (15)
- バッテリーパックに備えられ、少なくとも一つの二次電池を備えるセルアセンブリの過充電を防止する装置であって、
前記セルアセンブリの両端電圧を測定するように構成された電圧測定部と、
前記セルアセンブリの一端と前記バッテリーパックのパック端子とを電気的に接続する充放電ライン上に備えられ、前記充放電ラインに流れる充電電流の導通を制御するように構成された充電FET(電界効果トランジスタ)と、
前記充電FETの両端を電気的に接続して前記充放電ラインと電気的に並列で構成されたバイパスライン上に備えられて前記充電FETと並列で接続され、前記充電FETの開閉動作に応じて前記充電電流が流れるように構成されたバイパス抵抗と、
前記電圧測定部から前記セルアセンブリの両端電圧値を受信し、受信した前記両端電圧値に基づいて前記充電FETの開閉動作を制御するように構成されたプロセッサとを含む過充電防止装置。 - 前記プロセッサは、前記セルアセンブリを充電させる前記充電電流が前記充放電ライン上に流れ、前記セルアセンブリの両端電圧値が予め決められた上限値に到達する場合、前記充電FETをターンオフさせるように構成されている、請求項1に記載の過充電防止装置。
- 前記プロセッサは、前記セルアセンブリを充電させる前記充電電流が前記充放電ライン上に流れ、前記セルアセンブリの両端電圧値が予め決められた下限値に到達する場合、前記充電FETをターンオンさせるように構成されている、請求項1または2に記載の過充電防止装置。
- 前記セルアセンブリが前記充電電流によって充電されている間に、前記セルアセンブリの両端電圧値が予め決められた上限値及び下限値にそれぞれ到達する場合、複数回繰り返して前記充電FETをターンオフ及びターンオンさせるように構成されている、請求項1から3のいずれか一項に記載の過充電防止装置。
- 前記電圧測定部は、前記バッテリーパックの両端電圧及び前記バイパス抵抗の両端電圧をさらに測定するように構成されている、請求項4に記載の過充電防止装置。
- 前記プロセッサは、前記電圧測定部から前記バッテリーパックの両端電圧値及び前記バイパス抵抗の両端電圧値のうち少なくとも一つをさらに受信し、受信した前記バッテリーパックの両端電圧値及び前記バイパス抵抗の両端電圧値のうち少なくとも一つに基づいて前記充電FETの開閉動作を制御するように構成されている、請求項5に記載の過充電防止装置。
- 前記プロセッサは、前記充電FETがターンオフされる場合、前記バッテリーパックの両端電圧値と前記予め決められた上限値との差に該当する電圧値と、前記セルアセンブリの電圧降下値との和に該当する電圧が前記バイパス抵抗に印加されるように、前記充電FETの開閉動作を制御するように構成されている、請求項6に記載の過充電防止装置。
- 前記プロセッサは、前記バイパス抵抗に前記充電電流が流れ、前記充電FETがターンオフされているターンオフ周期中に、前記バッテリーパックの両端電圧値が一定に維持されるように、前記充電FETの開閉動作を制御するように構成されている、請求項7に記載の過充電防止装置。
- 前記充電FETは、ゲート端子、ドレイン端子及びソース端子を備え、
前記ゲート端子は、前記プロセッサと電気的に接続され、
前記ドレイン端子は、前記セルアセンブリの負極端子と電気的に接続され、
前記ソース端子は、前記バッテリーパックの負極端子と電気的に接続されるように構成されている、請求項1から8のいずれか一項に記載の過充電防止装置。 - 前記バイパス抵抗は、一端が前記セルアセンブリの負極端子と前記充電FETのドレイン端子とを接続する充放電ライン上に接続され、他端が前記バッテリーパックの負極端子と前記充電FETのソース端子とを接続する充放電ライン上に接続されるように構成されている、請求項9に記載の過充電防止装置。
- 請求項1から10のいずれか一項に記載の過充電防止装置を含むBMS(バッテリーマネジメントシステム)。
- 請求項1から10のいずれか一項に記載の過充電防止装置を含むバッテリーパック。
- バッテリーパックに備えられ、少なくとも一つの二次電池を備えるセルアセンブリの過充電を防止する方法であって、
前記セルアセンブリの両端電圧を測定する段階と、
前記両端電圧を測定する段階によって測定された前記セルアセンブリの両端電圧値を受信し、受信した前記両端電圧値に基づいて、前記セルアセンブリの一端と前記バッテリーパックのパック端子とを電気的に接続する充放電ライン上に備えられて前記充放電ラインに流れる充電電流の導通を制御するように構成された充電FETの開閉動作を制御する段階と、
前記充電FETの両端を電気的に接続して前記充放電ラインと電気的に並列で構成されたバイパスライン上に備えられて前記充電FETと並列で接続されたバイパス抵抗を通じて、前記充電FETの開閉動作に応じて前記充電電流が流れるように制御する段階とを含む、過充電防止方法。 - 前記充電FETの開閉動作を制御する段階では、前記セルアセンブリが前記充電電流によって充電されている間に、前記セルアセンブリの両端電圧値が予め決められた上限値及び下限値にそれぞれ到達する場合、複数回繰り返して前記充電FETをターンオフ及びターンオンさせる、請求項13に記載の過充電防止方法。
- 前記充電電流が流れるように制御する段階では、前記バイパス抵抗に前記充電電流が流れ、前記充電FETがターンオフされているターンオフ周期中に、前記バッテリーパックの両端電圧値が一定に維持されるように、前記充電FETの開閉動作を制御する、請求項13または14に記載の過充電防止方法。
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PCT/KR2019/012606 WO2020067777A1 (ko) | 2018-09-27 | 2019-09-27 | 이차 전지의 과충전 방지 장치 및 방법 |
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JPH1023683A (ja) * | 1996-06-28 | 1998-01-23 | Sony Corp | 充電装置 |
US6707273B1 (en) * | 2002-07-18 | 2004-03-16 | Electronic Design & Sales, Inc. | Temperature/voltage controlled battery charging circuit |
JP2007325324A (ja) * | 2006-05-30 | 2007-12-13 | Matsushita Electric Ind Co Ltd | 充電システム、電池パックおよびその充電方法 |
JP2010246225A (ja) * | 2009-04-03 | 2010-10-28 | Sony Corp | 電池パックおよび充電方法 |
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EP3767779A1 (en) | 2021-01-20 |
CN111566892B (zh) | 2023-10-24 |
CN111566892A (zh) | 2020-08-21 |
EP3767779A4 (en) | 2021-05-19 |
US20200395779A1 (en) | 2020-12-17 |
TWI824007B (zh) | 2023-12-01 |
KR20200035643A (ko) | 2020-04-06 |
JP7058845B2 (ja) | 2022-04-25 |
US11594898B2 (en) | 2023-02-28 |
KR102387387B1 (ko) | 2022-04-14 |
WO2020067777A1 (ko) | 2020-04-02 |
TW202023141A (zh) | 2020-06-16 |
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