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Patent Agency Ranking
公开(公告)号：US09761881B2
公开(公告)日：2017-09-12
申请号：US15092572
申请日：2016-04-06
Inventor： Hongguang Shen , Fuping Luo , Chao Gao , Qiang Zheng , Shengwei Wang
IPC: H01M10/05 , H01M4/62 , C08F2/26 , H01M10/0525 , C08F222/16
CPC classification number: H01M4/622 , C08F2/26 , C08F2222/165 , H01M10/0525 , H01M2220/20 , Y02E60/122 , C08F220/14 , C08F2220/1825 , C08F220/06 , C08F212/08
Abstract: The present application discloses a binder for a lithium ion battery, which comprises a polymer obtained through emulsion polymerization of a monomer in the presence of a reactive emulsifying agent. The binder is used in fabrication of a lithium ion electrode plate, whereby a thin film formed on the surface of an electrode membrane and fine channels formed in the electrode membrane with the use of a conventional emulsifying agent during the electrode membrane-forming process are eliminated, and the lithium ion conductivity of the electrode membrane is improved. Meanwhile, with the use of the reactive emulsifying agent, the bonding effect of the binder and the stability of the electrode membrane are improved, thereby greatly improving the charging rate and cycle life of the lithium ion battery.
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公开(公告)号：US10164456B2
公开(公告)日：2018-12-25
申请号：US15439867
申请日：2017-02-22
Inventor： Fuping Luo , Shengwei Wang , Chao Gao , Qiang Zheng
Abstract: A method for charging a lithium ion battery includes the steps of: 1) determining a maximum charging current I0 and a lowest anode potential η of the lithium ion battery at which no lithium precipitation occurs; 2) charging the lithium ion battery at a constant current of I1 which is greater than I0 for a charging time t1; 3) discharging the lithium ion battery at a constant current of I2 which is less than I0 for a discharging time t2, 5≤t1/t2≤50; 4) repeating steps 2) and 3) until a cutoff voltage of the lithium ion battery reaches V0 and standing the lithium ion battery for a standing time t3; and 5) charging the lithium ion battery at a constant current of I0 until the cutoff voltage of the lithium ion battery reaches V0 and charging the lithium ion battery to a cutoff current of I3 at a constant voltage.
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公开(公告)号：US20160301076A1
公开(公告)日：2016-10-13
申请号：US15092572
申请日：2016-04-06
Inventor： Hongguang SHEN , Fuping Luo , Chao Gao , Qiang Zheng , Shengwei Wang
IPC: H01M4/62 , C08F20/14 , C08F20/18 , H01M10/0525
CPC classification number: H01M4/622 , C08F2/26 , C08F2222/165 , H01M10/0525 , H01M2220/20 , Y02E60/122 , C08F220/14 , C08F2220/1825 , C08F220/06 , C08F212/08
Abstract: The present application discloses a binder for a lithium ion battery, which comprises a polymer obtained through emulsion polymerization of a monomer in the presence of a reactive emulsifying agent. The binder is used in fabrication of a lithium ion electrode plate, whereby a thin film formed on the surface of an electrode membrane and fine channels formed in the electrode membrane with the use of a conventional emulsifying agent during the electrode membrane-forming process are eliminated, and the lithium ion conductivity of the electrode membrane is improved. Meanwhile, with the use of the reactive emulsifying agent, the bonding effect of the binder and the stability of the electrode membrane are improved, thereby greatly improving the charging rate and cycle life of the lithium ion battery.
Abstract translation: 本申请公开了一种用于锂离子电池的粘合剂，其包含通过在反应性乳化剂存在下通过单体的乳液聚合获得的聚合物。 粘合剂用于制造锂离子电极板，消除了在电极膜形成过程中使用常规乳化剂在电极膜表面形成的薄膜和在电极膜中形成的细小通道的薄膜 ，电极膜的锂离子传导性提高。 同时，通过使用反应性乳化剂，粘合剂的粘合效果和电极膜的稳定性提高，极大地提高了锂离子电池的充电率和循环寿命。
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公开(公告)号：US10135279B2
公开(公告)日：2018-11-20
申请号：US15626951
申请日：2017-06-19
Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED
Inventor： Fuping Luo , Yu Luo , Shengwei Wang , Zhanzhao Fang , Chao Gao , Qiang Zheng
IPC: H02J7/00 , H01M10/0525 , H01M10/44
Abstract: Embodiments of the present application provide a method of battery charging, which relates to the field of battery charging and is capable of effectively improving safety performance of the battery. The method includes: obtaining an anode open circuit voltage curve, an anode impedance curve, a lithium deposition potential threshold and a state of charge, corresponding to a battery; determining a current anode open circuit voltage according to the anode open circuit voltage curve and the state of charge; determining a current anode impedance according to the anode impedance curve and the state of charge; determining a current charging current according to the current anode open circuit voltage, the current anode impedance and the lithium deposition potential threshold; and charging the battery according to the current charging current. Embodiments of the present application are applicable to a rapid battery charging process.
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公开(公告)号：US20170244255A1
公开(公告)日：2017-08-24
申请号：US15439867
申请日：2017-02-22
Inventor： Fuping Luo , Shengwei Wang , Chao Gao , Qiang Zheng
IPC: H02J7/00 , H01M10/0525 , H01M10/44
CPC classification number: H02J7/007 , H01M4/505 , H01M4/525 , H01M4/5825 , H01M4/587 , H01M10/0525 , H01M10/44 , H02J7/008 , Y02T10/7011
Abstract: A method for charging a lithium ion battery includes the steps of: 1) determining a maximum charging current I0 and a lowest anode potential η of the lithium ion battery at which no lithium precipitation occurs; 2) charging the lithium ion battery at a constant current of I1 which is greater than I0 for a charging time t1; 3) discharging the lithium ion battery at a constant current of I2 which is less than I0 for a discharging time t2, 5≦t1/t2≦50; 4) repeating steps 2) and 3) until a cutoff voltage of the lithium ion battery reaches V0 and standing the lithium ion battery for a standing time t3; and 5) charging the lithium ion battery at a constant current of I0 until the cutoff voltage of the lithium ion battery reaches V0 and charging the lithium ion battery to a cutoff current of I3 at a constant voltage.
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