公开(公告)号：US20150104717A1

公开(公告)日：2015-04-16

申请号：US14575159

申请日：2014-12-18

申请人： LG Chem, Ltd.

发明人： Young Soo Kim ,  Soon Ho Ahn ,  Joon Sung Bae ,  Cha Hun Ku ,  Soo Hyun Ha ,  Duk Hyun Ryu ,  Sei Lin Yoon

IPC分类号： H01M10/0567 ,  H01M10/056

CPC分类号： H01M10/0567 ,  H01M4/13 ,  H01M4/139 ,  H01M10/052 ,  H01M10/056 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2300/004 ,  Y02E60/122 ,  Y02P70/54

摘要： Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyt, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte.

摘要翻译： 公开了包含锂盐和溶剂的非水电解质，所述电解质基于电解质的重量计含10-40重量％的式1化合物或其分解产物，和1-40重量％的 脂族腈化合物，以及包含非水电解质的电化学装置。

公开(公告)号：US11539068B2

公开(公告)日：2022-12-27

申请号：US16764625

申请日：2018-12-07

申请人： LG CHEM, LTD.

发明人： Dong Hun Bae ,  Hyo Jin Park ,  Suk Hyun Hong ,  Joon Sung Bae ,  Beom Koon Lee ,  Dae Bong Lim ,  Jin Woo Heo

IPC分类号： H01M10/04 ,  H01M50/325

摘要： The present invention is a method for manufacturing a secondary battery. An electrode assembly and an electrolyte are accommodated into a body of a battery case. The body of the battery case has an accommodation part and a gas pocket part, and a passage that extends from the accommodation part to the outside discharges an internal gas from the accommodation part through the gas pocket part. The battery case is seated in a seating step on a support block, which has an inclined part on a side surface thereof, to support the battery case. The body is pressed to discharge a gas accommodated in the accommodation part through the gas pocket part in the battery case. This method allows easy discharging of internal gas while reducing discharge of the electrolyte with the gas.

公开(公告)号：US20190271746A1

公开(公告)日：2019-09-05

申请号：US16288842

申请日：2019-02-28

申请人： LG CHEM, LTD.

发明人： So Hee Kim ,  Nak Gi Sung ,  Joon Sung Bae

IPC分类号： G01R31/392 ,  G01R31/3842 ,  G01R31/388 ,  H01M10/48 ,  G01R31/389

摘要： A method and system for predicting the time required for low voltage expression of a secondary battery, including (a) obtaining a leakage current by inputting a voltage of a battery cell of the secondary battery, measuring a freezing resistance of a battery cell, and dividing an input voltage by a measured freezing resistance, (b) obtaining a discharge capacity difference by setting a reference value of a voltage drop for selecting a low voltage defect and obtaining a discharge capacity difference between the input voltage and a voltage dropped therefrom by the reference value, and (c) dividing the discharge capacity difference by the leakage current to thereby calculate a time required for low voltage expression.

公开(公告)号：US10014550B2

公开(公告)日：2018-07-03

申请号：US15110457

申请日：2015-10-02

申请人： LG Chem, Ltd.

发明人： Do Hwa Jung ,  Hyun Won Lee ,  Joon Sung Bae

IPC分类号： H01M10/04 ,  H01M10/0585 ,  B30B15/00 ,  H01M10/058 ,  H01M10/0583 ,  H01M2/14 ,  H01M2/16

CPC分类号： H01M10/0404 ,  B30B15/00 ,  H01M2/145 ,  H01M2/1673 ,  H01M10/0413 ,  H01M10/045 ,  H01M10/0459 ,  H01M10/0468 ,  H01M10/058 ,  H01M10/0583 ,  H01M10/0585

摘要： The present invention relates to a secondary battery laminating device. The secondary battery laminating device for bonding an electrode assembly to a separator includes a transfer part transferring the electrode assembly in a state in which the electrode assembly is disposed on the separator; and a bonding part disposed on a transfer path of the transfer part to contact an entire surface of the electrode assembly and apply heat to the electrode assembly, thereby bonding the electrode assembly to the separator. Thus, a uniform pressure is applied to the electrode assembly to firmly bond the electrode assembly to the separator, thereby manufacturing a secondary battery having superior durability.

公开(公告)号：US09711794B2

公开(公告)日：2017-07-18

申请号：US14374051

申请日：2013-02-07

申请人： LG Chem, Ltd.

发明人： Chang-Wan Koo ,  Byoung Hoon Ahn ,  Joon Sung Bae ,  Jae Bin Chung

IPC分类号： H01M4/62 ,  C09J101/28 ,  H01M4/133 ,  H01M4/587 ,  H01M10/0525 ,  H01M4/583 ,  H01M10/052 ,  H01M4/505 ,  H01M4/525

CPC分类号： H01M4/621 ,  C08L9/06 ,  C09J101/286 ,  H01M4/133 ,  H01M4/505 ,  H01M4/525 ,  H01M4/583 ,  H01M4/587 ,  H01M4/622 ,  H01M10/052 ,  H01M10/0525 ,  H01M2220/20 ,  Y02T10/7011

摘要： Disclosed is a lithium secondary battery that includes an anode coated with an anode mixture including an anode active material, a cathode coated with a cathode mixture including a cathode active material, and a non-aqueous electrolyte, wherein the anode mixture includes, as aqueous binders, carboxymethyl cellulose (CMC) having a degree of substitution of a hydroxyl group (—OH) with a carboxymethyl group (—CH2CO2H) of 0.7 to 1.2, a molecular weight (Mn) of 500,000 to 900,000, and a pH of 6.5 to 8.0 and styrene-butadiene rubber (SBR) having a particle diameter of 90 nm to 150 nm and a tensile strength of 90 kgf to 160 kgf, and the anode has an electrode coating amount of 10 to 20 mg/cm2 and that enhances electrode processability and reduces a swelling phenomenon.

公开(公告)号：US20170025702A1

公开(公告)日：2017-01-26

申请号：US15110457

申请日：2015-10-02

申请人： LG CHEM, LTD.

发明人： Do Hwa Jung ,  Hyun Won Lee ,  Joon Sung Bae

IPC分类号： H01M10/04 ,  H01M2/14 ,  H01M2/16

CPC分类号： H01M10/0404 ,  B30B15/00 ,  H01M2/145 ,  H01M2/1673 ,  H01M10/0413 ,  H01M10/045 ,  H01M10/0459 ,  H01M10/0468 ,  H01M10/058 ,  H01M10/0583 ,  H01M10/0585

摘要： The present invention relates to a secondary battery laminating device. The secondary battery laminating device for bonding an electrode assembly to a separator includes a transfer part transferring the electrode assembly in a state in which the electrode assembly is disposed on the separator; and a bonding part disposed on a transfer path of the transfer part to contact an entire surface of the electrode assembly and apply heat to the electrode assembly, thereby bonding the electrode assembly to the separator. Thus, a uniform pressure is applied to the electrode assembly to firmly bond the electrode assembly to the separator, thereby manufacturing a secondary battery having superior durability.

摘要翻译： 本发明涉及二次电池层压装置。 用于将电极组件粘合到隔板的二次电池层压装置包括：转印部件，其以电极组件设置在隔膜上的状态转印电极组件; 以及接合部，其设置在所述传递部的传送路径上，以接触所述电极组件的整个表面，并向所述电极组件施加热量，从而将所述电极组件接合到所述隔膜。 因此，对电极组件施加均匀的压力，以将电极组件牢固地结合到分离器，从而制造具有优异的耐久性的二次电池。

公开(公告)号：US09263768B2

公开(公告)日：2016-02-16

申请号：US14575159

申请日：2014-12-18

申请人： LG Chem, Ltd.

发明人： Young Soo Kim ,  Soon Ho Ahn ,  Joon Sung Bae ,  Cha Hun Ku ,  Soo Hyun Ha ,  Duk Hyun Ryu ,  Sei Lin Yoon

IPC分类号： H01M10/0567 ,  H01M10/0569 ,  H01M4/13 ,  H01M4/139 ,  H01M10/052 ,  H01M10/42 ,  H01M10/056

CPC分类号： H01M10/0567 ,  H01M4/13 ,  H01M4/139 ,  H01M10/052 ,  H01M10/056 ,  H01M10/0569 ,  H01M10/4235 ,  H01M2300/004 ,  Y02E60/122 ,  Y02P70/54

摘要： Disclosed are a non-aqueous electrolyte comprising a lithium salt and a solvent, the electrolyte containing, based on the weight of the electrolyte, 10-40 wt % of a compound of Formula 1 or its decomposition product, and 1-40 wt % of an aliphatic nitrile compound, as well as an electrochemical device comprising the non-aqueous electrolyte.

摘要翻译： 公开了包含锂盐和溶剂的非水电解质，所述电解质包含基于电解质重量的10-40重量％的式1化合物或其分解产物，和1-40重量％的 脂族腈化合物，以及包含非水电解质的电化学装置。