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公开(公告)号：US11955608B2
公开(公告)日：2024-04-09
申请号：US18379222
申请日：2023-10-12
发明人： Lan Xie , Zhen Lin , Guangyu Xu , Shuai Song
IPC分类号： H01M10/42 , G01R31/3835 , H01M10/44 , H01M10/48 , H02J7/00
CPC分类号： H01M10/4285 , G01R31/3835 , H01M10/425 , H01M10/441 , H01M10/482 , H02J7/0068 , H01M2010/4271
摘要： A lithium precipitation detection method may include: sending, when a battery management module in the battery pack determines that a change in a charging voltage of the battery pack meets a predetermined condition, a charging request containing a first current to a charging pile for charging, and controlling the battery pack to be charged with the first current for a first predetermined duration and a second predetermined duration, where the first predetermined duration is equal to the second predetermined duration; obtaining, by the battery management module, a first voltage change amount within the first predetermined duration and a second voltage change amount within the second predetermined duration; and determining, when the battery management module determines that a difference between the second voltage change amount and the first voltage change amount is greater than a predetermined voltage threshold, that lithium precipitation occurs in the battery pack.
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公开(公告)号：US20180351209A1
公开(公告)日：2018-12-06
申请号：US15981716
申请日：2018-05-16
发明人： Yingjie ZHAN , Jian Yan , Songjun Shi , Lan Xie , Wenhao Liu
IPC分类号： H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M4/36 , H01M4/525 , H01M4/505
CPC分类号： H01M10/0567 , H01M4/366 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M2004/028 , H01M2300/004
摘要： The present disclosure provides a lithium-ion battery, which comprises: a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material and an electrolyte. The positive electrode active material comprises: a core and a coating layer coating a surface of the core and comprising boron. The electrolyte comprises a lithium salt, a non-aqueous organic solvent and an electrolyte additive, the electrolyte additive comprises an organic titanium compound. The coating layer of the positive electrode active material of the lithium-ion battery according to the present disclosure contains boron, and the electrolyte of the lithium-ion battery contains the organic titanium compound, under the combined effect of the coating layer containing boron and the electrolyte containing the organic titanium compound, the lithium-ion battery has excellent high temperature cycle performance and excellent high temperature storage performance.
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公开(公告)号：US20230398902A1
公开(公告)日：2023-12-14
申请号：US18458164
申请日：2023-08-30
发明人： Shan Huang , Shichao Li , Haili Li , Wei Zhao , Lan Xie
CPC分类号： B60L58/16 , H02J7/005 , H02J7/0049 , H02J7/00714 , B60L53/62 , B60L58/13 , B60L2240/549
摘要： Provided are a method for charging a traction battery and a battery management system. The method for charging the traction battery is applied to a battery management system, where the method includes: obtaining an SOH of the traction battery; in a charging process of the traction battery, obtaining an SOC of the traction battery; determining an SOC interval value corresponding to discharging or stopping being charged of the traction battery based on the SOH of the traction battery; and when the SOC of the traction battery changes by the SOC interval value, controlling the traction battery to discharge or stop being charged. Through the technical solution, in the charging process of the traction battery, the discharging or the stopping being charged of the traction battery can be controlled to reduce the risk of lithium precipitation in the traction battery and improve the safety performance of the traction battery.
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公开(公告)号：US10826122B2
公开(公告)日：2020-11-03
申请号：US15981716
申请日：2018-05-16
发明人： Yingjie Zhan , Jian Yan , Songjun Shi , Lan Xie , Wenhao Liu
IPC分类号： H01M10/0567 , H01M10/0525 , H01M10/0568 , H01M10/0569 , H01M4/36 , H01M4/505 , H01M4/525 , H01M4/02
摘要： The present disclosure provides a lithium-ion battery, which comprises: a positive electrode plate containing a positive electrode active material, a negative electrode plate containing a negative electrode active material and an electrolyte. The positive electrode active material comprises: a core and a coating layer coating a surface of the core and comprising boron. The electrolyte comprises a lithium salt, a non-aqueous organic solvent and an electrolyte additive, the electrolyte additive comprises an organic titanium compound. The coating layer of the positive electrode active material of the lithium-ion battery according to the present disclosure contains boron, and the electrolyte of the lithium-ion battery contains the organic titanium compound, under the combined effect of the coating layer containing boron and the electrolyte containing the organic titanium compound, the lithium-ion battery has excellent high temperature cycle performance and excellent high temperature storage performance.
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公开(公告)号：US20230402868A1
公开(公告)日：2023-12-14
申请号：US18458168
申请日：2023-08-30
发明人： Shan Huang , Shichao Li , Haili Li , Wei Zhao , Lan Xie
IPC分类号： H02J7/00
CPC分类号： H02J7/007194 , H02J7/0049 , H02J7/005 , H02J7/00714
摘要： Provided are a method for charging a traction battery and a battery management system, which can improve the performance of a traction battery. The method for charging the traction battery is applied to a battery management system BMS of the traction battery, where the method includes: in a charging process of the traction battery, obtaining a state parameter of the traction battery, where the state parameter includes at least one of the following parameters: a state of charge SOC, a state of health SOH, and a temperature; determining an SOC interval value and a discharging parameter corresponding to discharging of the traction battery based on the state parameter of the traction battery, where the discharging parameter includes at least one of the following parameters: a discharging time, a discharging current, and a discharging waveform.
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