WO2021238860A1 - 电池包、车辆以及储能装置 - Google Patents
电池包、车辆以及储能装置 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
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- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/50—Charging stations characterised by energy-storage or power-generation means
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- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/16—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to battery ageing, e.g. to the number of charging cycles or the state of health [SoH]
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- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
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- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
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- 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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
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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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- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
Abstract
Description
Claims (20)
- 一种电池包,其特征在于,所述电池包至少包括一个电池序列,所述电池序列包括若干个电池;所述电池的厚度沿第一方向延伸,若干个所述电池沿所述第一方向依次排列以形成所述电池序列;至少一个所述电池包括外壳和封装于所述外壳内的极芯,至少两个相邻的电池之间具有间隙,该间隙与所述电池的厚度的比例为c,c满足如下关系式:c/a=0.01~0.5,其中,a表示为所述电池的膨胀率。
- 如权利要求1所述的电池包,其特征在于,任意相邻两个所述电池之间具有间隙。
- 如权利要求1或2所述的电池包,其特征在于,相邻两个所述电池之间的间隙是指同一个所述电池序列中相邻两个所述电池之间的间距。
- 如权利要求1-3中任一项所述的电池包,其特征在于,a表示为电池在第一方向上的膨胀率。
- 如权利要求1-4中任一项所述的电池包,其特征在于,a=(电池膨胀后的厚度-电池膨胀前的厚度)/电池膨胀前的厚度×100%。
- 如权利要求5所述的电池包,其特征在于,所述电池膨胀前的厚度为所述电池在使用前的初始厚度,所述电池膨胀后的厚度为所述电池的容量衰减至初始容量80%以下测得的厚度。
- 如权利要求5或6所述的电池包,其特征在于,所述外壳包括具有开口的壳本体和盖板,所述盖板与所述壳本体的开口密封连接,以共同围成密封的容纳腔室,所述极芯位于所述容纳腔室内;所述电池膨胀前的厚度为所述盖板沿所述第一方向的尺寸;所述电池膨胀后的厚度为沿第一方向虚拟夹持所述电池的两平行平面的间距的最小值。
- 如权利要求1-7中任一项所述的电池包,其特征在于,所述相邻两个电池之间的间隙为相邻两个电池在工作中或工作后或使用前的间隙;所述电池的厚度为电池在使用前的初始厚度。
- 如权利要求1-7中任一项所述的电池包,其特征在于,所述外壳包括具有开口的壳本体和盖板,所述盖板与所述壳本体的开口密封连接,以共同围成密封的容纳腔室,所述极芯位于所述容纳腔室内;所述两个相邻电池之间的间隙包括第一间隙,所述第一间隙为所述两个相邻电池位于同一侧的两个盖板之间的最小距离,所述电池的厚度为所述盖板沿所述第一方向的尺寸。
- 如权利要求1-7中任一项所述的电池包,其特征在于,所述外壳包括具有开口的壳本体和盖板,所述盖板与所述壳本体的开口密封连接,以共同围成密封的容纳腔室,所述极芯位于所述容纳腔室内;所述外壳沿所述第一方向具有两个相对的第一表面;所述两个相邻电池之间的间隙包括第二间隙,所述第二间隙为所述两个相邻的电池的外壳相彼此面对的两个第一表面之间的最小间距;所述电池的厚度为所述盖板沿所述第一方向的尺寸。
- 如权利要求10所述的电池包,其特征在于,所述电池在使用前的第二间隙大于所述电池在使用后的第二间隙。
- 如权利要求1-11中任一项所述的电池包,其特征在于,a的取值范围5.8%-17.5%。
- 如权利要求1-12中任一项所述的电池包,其特征在在于,所述电池的长度沿第二方向延伸,所述电池的长度为400-2500mm;所述第二方向与第一方向不同。
- 如权利要求1-13中任一项所述的电池包,其特征在于,封装于所述外壳内的极芯包括多个,多个所述极芯分成若干个极芯组,所述极芯组间串联。
- 如权利要求14所述的电池包,其特征在于,同一个所述极芯组中的多个所述极芯并联。
- 如权利要求14或15所述的电池包,其特征在于,每个所述极芯组外均套设有封装膜,多个所述极芯组串联。
- 如权利要求1-16中任一项所述的电池包,其特征在于,所述外壳与所述极芯之间还设有封装膜,所述极芯封装在封装膜内。
- 如权利要求7所述的电池包,其特征在于,测试所述电池膨胀后的厚度时,计算所述电池的平均厚度,在所述电池的所述壳本体上按照一定的间距任意选取n个点,分别测定n个点的厚度,分别记为d1、d2、d3……dn,所述电池膨胀后的厚度为d=(d1+d2+d3+……dn)/n。
- 一种车辆,其特征在于,所述车辆包括权利要求1-18中任一项所述的电池包。
- 一种储能装置,其特征在于,所述储能装置权利要求1-18中任一项所述的电池包。
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KR1020227045041A KR20230015421A (ko) | 2020-05-25 | 2021-05-24 | 배터리 팩, 차량 및 에너지 저장 디바이스 |
JP2022572730A JP2023528367A (ja) | 2020-05-25 | 2021-05-24 | 電池パック、車両及びエネルギー蓄積装置 |
US17/991,693 US20230079318A1 (en) | 2020-05-25 | 2022-11-21 | Battery pack, vehicle, and energy storage device |
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CN202010447953.8A CN111354900B (zh) | 2020-05-25 | 2020-05-25 | 电池包、电池模组、车辆以及储能装置 |
CN202010447953.8 | 2020-05-25 |
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US17/991,693 Continuation US20230079318A1 (en) | 2020-05-25 | 2022-11-21 | Battery pack, vehicle, and energy storage device |
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EP (1) | EP3993117A1 (zh) |
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JP2023528367A (ja) | 2023-07-04 |
CN111354900A (zh) | 2020-06-30 |
KR20230015421A (ko) | 2023-01-31 |
US20230079318A1 (en) | 2023-03-16 |
EP3993117A1 (en) | 2022-05-04 |
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