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公开(公告)号：US10727466B2
公开(公告)日：2020-07-28
申请号：US15846819
申请日：2017-12-19
发明人： Won Il Cho , Mun Sek Kim , In Wook Nah , Young Rok Lim , Sun Min Park , In Hwan Oh
IPC分类号： H01M2/16 , C08G73/02 , H01M2/14 , H01M10/054 , H01M12/06 , C09D179/02 , C09D5/24 , H01M10/0525 , C09D5/44 , C09D7/65
摘要： In a secondary battery including a separator, the improvement includes a coating layer that is disposed on the separator and that comprises a polyethyleneimine-attached carbonaceous material The secondary battery may include an adhesive buffer layer provided between the separator and the coating layer which imparts adhesion force between the separator and the coating layer. The carbonaceous material adsorbs lithium polysulfides (LiPS) in use to inhibit a shuttling reaction between the anode and the cathode, caused by the dissolution of lithium polysulfides in the electrolyte, and increases recyclability of the lithium polysulfides, resulting in improvement of life characteristics and rate characteristics of the secondary battery.
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公开(公告)号：US10804567B2
公开(公告)日：2020-10-13
申请号：US15975016
申请日：2018-05-09
发明人： Won Il Cho , Mun Sek Kim , Ji Hyun Ryu , In Wook Nah , Min Seop Kim , Sun Min Park
IPC分类号： H01M10/0569 , H01M10/0525 , H01M10/0567 , H01M4/38 , H01M10/0568 , H01M10/052 , H01M4/02 , H01M4/525 , H01M4/505 , H01M4/58
摘要： Disclosed is an electrolyte for a lithium metal secondary battery and a lithium metal secondary battery including the same. An electrolyte system is intended to maintain the energy density of a secondary battery based on a lithium metal negative electrode and to extend the life of a battery. Particularly, an electrolyte for a lithium metal battery which forms a stable SEI film capable of inhibiting formation and extension of lithium dendrite so that the negative electrode of a lithium metal battery having a high possibility of battery ignition may be stabilized and an internal short-circuit may be prevented, and a lithium metal secondary battery including the same is provided.
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3.发明申请公开(公告)号：US20180269453A1
公开(公告)日：2018-09-20
申请号：US15846819
申请日：2017-12-19
发明人： Won Il Cho , Mun Sek Kim , In Wook Nah , Young Rok Lim , Sun Min Park , In Hwan Oh
IPC分类号： H01M2/16 , H01M2/14 , H01M10/0525 , H01M10/054 , H01M12/06 , C09D179/02 , C09D5/24 , C08G73/02
CPC分类号： H01M2/1686 , C08G73/0206 , C09D5/24 , C09D5/44 , C09D7/65 , C09D179/02 , H01M2/145 , H01M2/1613 , H01M2/1646 , H01M2/1653 , H01M10/0525 , H01M10/054 , H01M12/06 , H01M2220/30 , Y02E60/128
摘要： A polyethyleneimine-attached carbonaceous material for a separator for a secondary battery. The carbonaceous material for coating a separator for a secondary battery adsorbs lithium polysulfides (LiPS) to inhibit a shuttling reaction between an anode and a cathode, caused by the dissolution of lithium polysulfides in electrolyte, and increases recyclability of lithium polysulfides, resulting in improvement of life characteristics and rate characteristics of a battery.
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4.发明申请公开(公告)号：US20180331393A1
公开(公告)日：2018-11-15
申请号：US15975016
申请日：2018-05-09
发明人： Won Il CHO , Mun Sek Kim , Ji Hyun Ryu , In Wook Nah , Min Seop Kim , Sun Min Park
IPC分类号： H01M10/0569 , H01M10/0525 , H01M10/0567 , H01M4/38 , H01M4/525 , H01M10/0568
摘要： Disclosed is an electrolyte for a lithium metal secondary battery and a lithium metal secondary battery including the same. An electrolyte system is intended to maintain the energy density of a secondary battery based on a lithium metal negative electrode and to extend the life of a battery. Particularly, an electrolyte for a lithium metal battery which forms a stable SEI film capable of inhibiting formation and extension of lithium dendrite so that the negative electrode of a lithium metal battery having a high possibility of battery ignition may be stabilized and an internal short-circuit may be prevented, and a lithium metal secondary battery including the same is provided.
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