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公开(公告)号：US10431819B2
公开(公告)日：2019-10-01
申请号：US15378031
申请日：2016-12-13
发明人： Wenjuan Liu Mattis , Tianshu Deng , Ruanbing Hu , Chaofeng Ning
IPC分类号： H01B1/22 , H01B1/24 , H01M4/00 , H01M4/38 , H01M4/62 , H01M4/587 , C08F2/44 , C08F4/30 , H01M4/134 , H01M4/1395 , H01M10/052 , C08F120/06 , C08F2/16 , C08F222/02 , H01M4/02
摘要： The present invention provides a method for preparing an anode slurry used in a lithium ion battery. The method includes the following steps: providing at least one anode active material, at least one conductive agent, at least one monomer or a prepolymer and at least one solvent. Mixing the anode active material, the conductive agent and the monomer or the prepolymer with the solvent; dispersing uniformly to form a mixture. Adding an initiator into the mixture; polymerizing the monomer or the prepolymer at a certain temperature; and yielding the anode slurry. Besides, the present invention also provides an anode slurry prepared by the above method, and an anode plate prepared by the anode slurry, and a lithium ion battery including the anode plate.
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公开(公告)号：US10319997B2
公开(公告)日：2019-06-11
申请号：US15207790
申请日：2016-07-12
发明人： Wenjuan Liu Mattis , Jianhai Luo
IPC分类号： H01M10/0525 , H01M10/0585 , H01M4/38 , H01M4/04 , H01M4/134 , H01M4/1395 , H01M4/36 , H01M4/58 , H01M4/62 , C01B33/021 , H01M4/02 , H01M10/052
摘要： The present application provides a coated anode material and a method of preparing the same. The coated anode material has a core-shell structure, wherein the core-shell structure includes an inert core and a shell coated on the inert core, the shell comprises an anode active material, and the inert core comprises a non-active material. In the coated anode material, the anode active material of the shell is distributed over the non-active material of the inert core, and the coated anode material can overcome the volume change problem of silicon particles during lithium insertion/deinsertion to a certain extent and obtain a better cycle performance and rate performance.
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公开(公告)号：US10797363B2
公开(公告)日：2020-10-06
申请号：US16172899
申请日：2018-10-29
IPC分类号： H01M10/54 , H01M6/52 , H01M4/505 , H01M10/0525 , H01M4/131 , C01G53/00 , H01M4/525 , C01G45/12 , H01M4/36 , H01M4/02
摘要： Provided is a method for recycling and refreshing a cathode material, a refreshed cathode material and a lithium ion battery. The method for recycling and refreshing the cathode material includes: 1) a cathode material recycled from a waste battery is mixed with a manganiferous salt solution; 2) an alkali aqueous solution is added to the mixture to react to obtain a manganese hydroxide coating cathode material; and 3) the manganese hydroxide coating cathode material is sintered with a lithium resource to obtain a refreshed cathode material. The refreshed cathode material has no obvious impurity phase and has good crystallinity, high initial charge-discharge efficiency and good cycling performance.
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公开(公告)号：US10763539B2
公开(公告)日：2020-09-01
申请号：US16041694
申请日：2018-07-20
发明人： Zhangbo Liu , Xingzhi Mei , Jinjie Chen , Yi Fang , Zhuoqun Zheng , Yuehui Yin , Wenjuan Liu Mattis
IPC分类号： H01M10/0525 , H01M10/058 , H01M4/36 , H01M4/13 , H01M2/16
摘要： A method for preparing an inorganic solid electrolyte composite slurry includes: mixing an inorganic solid electrolyte powder with a first solvent and wet grinding an obtained mixture to form a preparatory slurry A; mixing a binder with a second solvent to form a preparatory slurry B; mixing the preparatory slurry A with the preparatory slurry B to obtain the inorganic solid electrolyte composite slurry. The inorganic solid electrolyte composite slurry prepared by the present disclosure effectively solves the problem that it is difficult to reduce the inorganic solid electrolyte powder particle size in the preparation process, or it is difficult to fully dry the inorganic solid electrolyte powder after sand milling. The present disclosure further provides an inorganic solid electrolyte composite slurry prepared by the method, an application of the inorganic solid electrolyte composite slurry, and a lithium-ion battery having the inorganic solid electrolyte composite slurry.
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公开(公告)号：US11038166B2
公开(公告)日：2021-06-15
申请号：US16403498
申请日：2019-05-03
发明人： Wenjuan Liu Mattis , Jianhai Luo
IPC分类号： H01M4/38 , C01B33/021 , H01M10/0525 , H01M10/0585 , H01M4/04 , H01M4/134 , H01M4/1395 , H01M4/58 , H01M4/62 , H01M10/052 , H01M4/36 , H01M4/02
摘要： The present application provides a coated anode material and a method of preparing the same. The coated anode material has a core-shell structure, wherein the core-shell structure includes an inert core and a shell coated on the inert core, the shell comprises an anode active material, and the inert core comprises a non-active material. In the coated anode material, the anode active material of the shell is distributed over the non-active material of the inert core, and the coated anode material can overcome the volume change problem of silicon particles during lithium insertion/deinsertion to a certain extent and obtain a better cycle performance and rate performance.
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公开(公告)号：US10782272B2
公开(公告)日：2020-09-22
申请号：US16035725
申请日：2018-07-16
发明人： Bryan Yonemoto , Xiao Zhang , Wenjuan Liu Mattis , Zhifeng Zhang
摘要： An analytical method for precipitated particles using a co-precipitation reaction in includes feeding streams and a tracking metal into a reaction vessel; collecting a precipitated product containing the tracking metal from the reaction vessel in increments of time to obtain product samples; filtering each collected product sample to separate precipitated particles from filtrate; and performing elemental analysis for the tracking metal in the precipitated particles of each collected product sample and measuring a concentration of the tracking metal in the precipitated particles, to obtain a residence time distribution of the precipitated particles in the reaction vessel according to the concentration of the tracking metal in the precipitated particles. Therefore the preferred residence time of the precipitated particles in the reaction vessel can be ascertained, so that it is clear when the precipitated particles should be collected from the reaction vessel.
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公开(公告)号：US20190081373A1
公开(公告)日：2019-03-14
申请号：US16129765
申请日：2018-09-12
发明人： Shaosong LIU , Wenjuan Liu Mattis , Shengxian WU
IPC分类号： H01M10/6554 , H01M10/613 , H01M10/647 , H01M10/6551
CPC分类号： H01M10/6554 , H01M10/613 , H01M10/647 , H01M10/653 , H01M10/6551 , H01M10/6555 , H01M10/6556
摘要： The disclosure provides a battery module. The battery module includes a battery stacked body, which includes stacked batteries; cooling plates that are installed at the tail ends in a battery stacking direction of the battery stacked body, and the cooling plates and the battery stacked body are installed in a thermal insulation mode; and heat transfer device that are in thermal contact with the cooling plates, and heat of the batteries is transferred to the cooling plates through the heat transfer device; wherein in a normal charging-discharging state, the battery with the highest temperature in the battery stacked body is a battery A; and between a single cooling plate and the battery A, a thermal resistance between each battery and the heat transfer device is reduced along with the increase of a distance between the each battery and the cooling plate in the battery stacking direction.
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公开(公告)号：US10921380B2
公开(公告)日：2021-02-16
申请号：US16177355
申请日：2018-10-31
发明人： Weifeng Fang , Xuezhong Dong , Qiru Li , Po Gao , Wenjuan Liu Mattis
IPC分类号： G01R31/36 , G01N27/416 , G01R31/389 , H01M10/44 , H01M10/48 , G01R31/3835 , G01R31/367 , G01R27/02
摘要： The present disclosure provides a method for measuring an internal resistance of a battery, after discharging/charging the battery under a preset constant-current, acquiring voltages of the battery within a period from ending the discharging/charging to a time when the voltage reaches stable, and then calculating different corresponding internal resistances caused by ohmic polarization, electrochemical polarization and concentration polarization separately. Since it is different for the orders of the magnitude of the characteristic time which these different polarizations need to get back into new equilibrium state after ending the discharging/charging, the method of the present disclosure classifies the internal resistances caused by these polarizations and calculated different internal resistances corresponding to the polarizations. Both the comparison with a result measured by other method and multiple embodiments in the application justify that the method in the present disclosure has high reliability and strong practicability.
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公开(公告)号：US10756399B2
公开(公告)日：2020-08-25
申请号：US16129765
申请日：2018-09-12
发明人： Shaosong Liu , Wenjuan Liu Mattis , Shengxian Wu
IPC分类号： H01M10/6554 , H01M10/6551 , H01M10/647 , H01M10/613 , H01M10/653 , H01M10/6556 , H01M10/6555
摘要： The disclosure provides a battery module. The battery module includes a battery stacked body, which includes stacked batteries; cooling plates that are installed at the tail ends in a battery stacking direction of the battery stacked body, and the cooling plates and the battery stacked body are installed in a thermal insulation mode; and heat transfer device that are in thermal contact with the cooling plates, and heat of the batteries is transferred to the cooling plates through the heat transfer device; wherein in a normal charging-discharging state, the battery with the highest temperature in the battery stacked body is a battery A; and between a single cooling plate and the battery A, a thermal resistance between each battery and the heat transfer device is reduced along with the increase of a distance between the each battery and the cooling plate in the battery stacking direction.
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10.发明申请公开(公告)号：US20190131673A1
公开(公告)日：2019-05-02
申请号：US16172899
申请日：2018-10-29
IPC分类号： H01M10/54 , H01M10/0525 , H01M4/505
CPC分类号： H01M10/54 , C01G45/1242 , C01G53/50 , C01P2002/72 , C01P2004/03 , C01P2004/61 , C01P2004/84 , C01P2006/40 , H01M4/131 , H01M4/366 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/028
摘要： Provided is a method for recycling and refreshing a cathode material, a refreshed cathode material and a lithium ion battery. The method for recycling and refreshing the cathode material includes: 1) a cathode material recycled from a waste battery is mixed with a manganiferous salt solution; 2) an alkali aqueous solution is added to the mixture to react to obtain a manganese hydroxide coating cathode material; and 3) the manganese hydroxide coating cathode material is sintered with a lithium resource to obtain a refreshed cathode material. The refreshed cathode material has no obvious impurity phase and has good crystallinity, high initial charge-discharge efficiency and good cycling performance.
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