WO2014019314A1 - Procédé de sélection et d'évaluation servant à l'utilisation de gradient d'un élément de puissance - Google Patents

Procédé de sélection et d'évaluation servant à l'utilisation de gradient d'un élément de puissance Download PDF

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WO2014019314A1
WO2014019314A1 PCT/CN2012/086542 CN2012086542W WO2014019314A1 WO 2014019314 A1 WO2014019314 A1 WO 2014019314A1 CN 2012086542 W CN2012086542 W CN 2012086542W WO 2014019314 A1 WO2014019314 A1 WO 2014019314A1
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battery
power battery
evaluation method
utilization
capacity
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PCT/CN2012/086542
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English (en)
Chinese (zh)
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吴文龙
赵光金
郭静娟
李臻
邱武斌
刘韶林
王刚
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河南省电力公司电力科学研究院
国家电网公司
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Publication of WO2014019314A1 publication Critical patent/WO2014019314A1/fr

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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
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
    • B60L3/0046—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electric energy storage systems, e.g. batteries or capacitors
    • 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
    • B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
    • B60L3/12—Recording operating variables ; Monitoring of operating variables
    • 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
    • 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
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/14—Preventing excessive discharging
    • 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
    • B60L58/12—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries responding to state of charge [SoC]
    • B60L58/15—Preventing overcharging
    • 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]
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/545—Temperature
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/547—Voltage
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/54—Drive Train control parameters related to batteries
    • B60L2240/549—Current
    • 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
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/60—Navigation input
    • B60L2240/66—Ambient conditions
    • B60L2240/662—Temperature
    • 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
    • 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
    • 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
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. 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
    • 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
    • Y02T10/72—Electric energy management in electromobility
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles

Definitions

  • the invention belongs to the technical field of batteries, and particularly relates to a power battery step utilization sorting evaluation method, which specifically comprises a power battery step utilization appearance identification sorting, performance characteristic analysis, internal structure detection imaging and phase phase analysis.
  • Electric vehicles have high performance requirements for power batteries. When the capacity of the power battery drops to a certain level, it must be replaced in order to ensure the power performance, driving range and safety performance of the electric vehicle. The battery that has been replaced from the electric car still has a high remaining capacity. Lithium-ion batteries have the advantages of high specific energy, high temperature characteristics, long cycle life, etc. After being decommissioned as electric vehicle power batteries, they may be applied to relatively good working conditions and relatively low battery performance requirements after screening and re-matching. In the case of the use of the power battery cascade. The power battery cascade utilization refers to the continued use of the electric energy storage device in other fields after the performance of the power battery is degraded and the electric vehicle usage requirement cannot be met.
  • the present invention fundamentally grasps the cause of battery performance degradation, and then evaluates the safety and health status of the battery to realize the sorting evaluation of the power battery. .
  • the object of the present invention is to provide a power battery step utilization sorting evaluation method, which can detect and image the internal structure of the power battery by using non-destructive testing means and methods, and determine the capacity retention, health state and safety performance of the power battery.
  • the cascade uses the non-destructive sorting evaluation of the power battery.
  • the present invention adopts the following technical solutions:
  • a power battery cascade utilization sorting evaluation method includes the following steps:
  • the appearance identification sorting in the step (1) includes: whether the appearance is intact, whether the surface is flat and dry, whether there is damage, whether there is deformation, whether there is any stain, whether there is gas or not. Bulging phenomenon, whether the mark is clear, correct, etc., the appearance recognition needs to be carried out under good lighting conditions.
  • performance characteristics analysis of the power battery is performed in the step (2), including historical operation parameter analysis and basic performance parameter test analysis.
  • the historical operating parameter analysis includes analyzing the overcharge, overdischarge condition, operating environment, service life, and available capacity of each battery. Specifically, when analyzing the historical operating parameters, if any of the following conditions are not met, the possibility of using the cascade is directly excluded: 1 Charging at a rate of 0.5-1.0 times, until the voltage reaches 4.5-5.0 V times ⁇ 5 times;
  • the number of times of operation at 50-80 ° C high temperature is less than ⁇ 5 times;
  • the number of years of use is less than 8 years;
  • the battery's normal temperature 3h rate discharge capacity is greater than 60% of the nominal value.
  • the basic performance parameter test analysis refers to testing and recording the main parameters of the battery, including: voltage, internal resistance, capacity, high and low temperature performance, and charge retention capability.
  • the specific values of normal temperature and high and low temperature are: 20 ° C ⁇ 5 ° C, 50 ⁇ 5 ° C, -20 ⁇ 5 ° C.
  • the discharge termination voltage is the discharge termination voltage specified in the technical conditions of the enterprise, and the range is 1.90 to 3.00. V, depending on the type of lithium battery;
  • the charge retention capacity of the power battery at room temperature 20 ° C ⁇ 5 ° C should be greater than 80% of the rated value, the charge retention capacity of the battery at a high temperature of 50 ⁇ 5 ° C and a temperature of -50 ⁇ 5 ° C is not less than 70% of the rated value. .
  • the experimental procedure of the charge retention capability includes: performing a normal temperature 0.3-fold capacity test, recording the actual capacity released and performing full charge, and the battery ambient temperature is 20° C. and 5° C. open storage for 28 days. After 28 days of open storage, the room temperature 0.3-fold capacity test was performed under no-charge conditions and the remaining capacity after storage was recorded.
  • the capacity test steps of steps 3, 4, 5, 6, and 7 in the basic performance parameter test analysis include: charging at a constant rate of 0.3 times (or 0.5 times) under a predetermined temperature condition (normal temperature and high temperature) to the battery
  • a predetermined temperature condition normal temperature and high temperature
  • the constant voltage charging is turned on, and when the charging current is reduced to 0.1 times of the constant current charging current value, the charging is stopped, and the measured capacity is the battery charging capacity.
  • the power battery discharges at 0.3 times (or 0.5 times), and stops discharging when the battery voltage reaches the discharge termination voltage.
  • the measured capacity is the battery. Discharge capacity.
  • the charging termination voltage that is, the charging termination voltage specified in the technical conditions of the enterprise, ranges from 3.50V to 4.20V, which is different depending on different types of lithium batteries.
  • the detecting means used in the step (3) comprises: an industrial CT, a 7Li nuclear magnetic resonance imager.
  • step (3) the internal microstructural changes of the power battery are detected, and the safety and health status of the battery are evaluated, including: using industrial CT non-destructive testing and three-dimensional imaging technology to realize The internal structure of the decommissioned battery is tested and three-dimensional imaging is realized. Observe whether there is a drum up phenomenon in the internal electrode piece of the battery to judge the health status of the battery.
  • the 7Li nuclear magnetic resonance image non-destructive testing technology is used to analyze the composition of the carbon negative electrode of the lithium battery.
  • the present invention provides an electric vehicle power battery cascade utilization sorting evaluation method, and the battery sorting evaluation process adopts non-destructive testing methods and means, which can ensure that the sorted battery can satisfy the step.
  • the requirements of utilization avoid the damage to the battery; and through the combination of internal and external characteristics, reveal the reasons for the decline of the performance of the power battery in the cascade, and based on this, carry out battery health and safety assessment; The safety and reliability of the power battery during the cascade utilization process.
  • Figure 1 is a three-dimensional image of the internal structure of the #4 battery obtained by industrial CT non-destructive testing
  • Figure 3 is a capacity attenuation diagram of the #6 battery at 0.2C
  • Figure 4 is a charge and discharge curve of the #6 battery at 0.2C
  • Figure 5 is a capacity attenuation diagram of the #6 battery at 0.3C
  • Figure 6 is a charge and discharge curve of a #6 battery at 0.3C.
  • An electric vehicle power battery cascade utilization sorting evaluation method includes the following steps:
  • the six power batteries were visually identified and sorted.
  • the appearance was sorted under the conditions of good outdoor light. It was found that the #1 battery had obvious air swelling, and the battery's logo was blurred.
  • # 1 The battery directly excludes the possibility of use of the ladder; the appearance recognition of the remaining 5 batteries meets the requirements of the cascade utilization, that is, the appearance is intact, the surface is smooth and dry, no damage, no deformation, no stain, no inflation, and the mark is clear and correct.
  • 5 power batteries can enter the step utilization.
  • the number of years of use is less than 8 years;
  • the battery's normal temperature 3h rate discharge capacity is greater than 60% of the nominal value.
  • the charge retention capacity of the power battery should be greater than 80% of the rated value, the charge retention of the battery at high temperature (50 ⁇ 5 ° C) and low temperature (-20 ⁇ 5 ° C) The capacity is not less than 70% of the rated value.
  • the charging maintenance test procedure includes: performing a normal temperature 0.3 times capacity test, recording the actual capacity released and performing full charge at a normal temperature of 0.3 times, and the battery ambient temperature is 20 ° C ⁇ 5 ° C open storage for 28 days. After 28 days of open storage, the room temperature 0.3-fold capacity test was performed under no-charge conditions and the remaining capacity after storage was recorded.
  • the basic performance parameter test analysis includes: charging at a constant rate of 0.3 times (or 0.5 times) under a predetermined temperature condition (normal temperature and high temperature).
  • a predetermined temperature condition normal temperature and high temperature.
  • the constant voltage charging is performed, and when the charging current is reduced to 0.1 times of the constant current charging current value, the charging is stopped, and the measured capacity is the battery charging capacity.
  • the power battery discharges at 0.3 times (or 0.5 times), and stops discharging when the battery voltage reaches the discharge termination voltage.
  • the measured capacity is the battery. Discharge capacity.
  • the charge termination voltage that is, the charge termination voltage specified in the technical conditions of the enterprise, ranges from 3.50V to 4.20V, depending on different types of lithium batteries.

Abstract

La présente invention concerne un procédé de sélection et d'évaluation servant à l'utilisation de gradient d'un élément de puissance. Le procédé comprend les étapes suivantes : (1) une étape consistant réaliser une reconnaissance d'apparence et un choix sur un élément de puissance recyclé d'un moteur électrique, et consistant à déterminer si l'élément de puissance entre dans une étape d'utilisation de gradient; (2) une étape consistant à réaliser une analyse de caractéristique de performances sur un élément de puissance qui entre dans une étape d'utilisation de gradient, et consistant à déterminer si l'élément a une valeur d'utilisation de gradient; et (3) une étape consistant à détecter des changements de la microstructure interne de l'élément de puissance pour l'utilisation de gradient, et consistant à évaluer la sûreté et la santé de l'élément.
PCT/CN2012/086542 2012-07-31 2012-12-13 Procédé de sélection et d'évaluation servant à l'utilisation de gradient d'un élément de puissance WO2014019314A1 (fr)

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Application Number Priority Date Filing Date Title
CN201210267131.7 2012-07-31
CN201210267131.7A CN102755966B (zh) 2012-07-31 2012-07-31 一种动力电池梯级利用分选评估方法

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CN105665309A (zh) * 2015-11-20 2016-06-15 上海展枭新能源科技有限公司 一种锂离子电容器的梯次利用的筛选方法
CN105983542A (zh) * 2015-02-13 2016-10-05 国家电网公司 一种退役电动汽车动力电池分类方法
CN108023133A (zh) * 2017-12-07 2018-05-11 上海国际汽车城（集团）有限公司 一种电动汽车退役电池的自动拆解线
CN109507600A (zh) * 2018-12-18 2019-03-22 中国电力科学研究院有限公司 一种退役磷酸铁锂电池梯次利用评估方法
CN110095721A (zh) * 2018-01-30 2019-08-06 中国电力科学研究院有限公司 一种退运电动汽车电池日历寿命的测评方法及模型
CN110178262A (zh) * 2017-10-24 2019-08-27 株式会社Lg化学 再生电池单元的方法
CN110726942A (zh) * 2018-06-29 2020-01-24 中国电力科学研究院有限公司 一种退役动力电池安全状态无损评估方法和装置
CN111260185A (zh) * 2020-01-08 2020-06-09 重庆大学 退役电动汽车电池作为大规模储能的发输电系统运行可靠性评估方法
CN113083739A (zh) * 2021-04-07 2021-07-09 东软睿驰汽车技术（沈阳）有限公司 电芯分选方法、装置以及计算机设备
CN114035058A (zh) * 2021-12-22 2022-02-11 湖北大学 一种低温锂电池测试系统及方法
CN114137430A (zh) * 2021-11-22 2022-03-04 北京胜能能源科技有限公司 一种退役锂电池剩余寿命的预估方法
CN114535112A (zh) * 2022-01-10 2022-05-27 西安理工大学 电动汽车退役电池分选机器人系统
CN115113046A (zh) * 2022-07-14 2022-09-27 河南新太行电源股份有限公司 一种快速评估电池最大放电倍率的测试方法
CN115121507A (zh) * 2022-06-28 2022-09-30 合肥工业大学 一种低测试成本的退役动力电池分选方法
CN115514068A (zh) * 2022-11-18 2022-12-23 杭州程单能源科技有限公司 一种锂电池梯次利用的电芯压差优化方法
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