公开(公告)号：US10312551B2

公开(公告)日：2019-06-04

申请号：US15261942

申请日：2016-09-10

Applicant: Microvast Power Systems Co., Ltd.

Inventor： Zhuoqun Zheng ,  Dawei Shen ,  Jian Qiu ,  Yunhua Nie ,  Xiaozhen Zhao ,  Danyi Li

IPC: H01M10/42 ,  H01M10/0568 ,  H01M10/0525 ,  H01M10/0569

Abstract: The present invention relates to a preparation method of ionic liquids, particularly to a one-step reaction method used for synthesizing quaternary ammonium compounds or quaternary phosphonium compounds. In the method, a nitrogenous or phosphorous compound, a proton compound, and a carbonate ester are added into a reactor simultaneously to synthesize corresponding the quaternary ammonium ionic liquid or the quaternary phosphonium ionic liquid through said one-step reaction, i.e., ‘one-pot method’ reaction, during which three reactants are involved. The present invention also provides a lithium ion secondary battery comprising the ionic liquid prepared by above-mentioned preparation method. The ionic liquid preparation method of the present invention can widen the choice range of raw materials needed when preparing ionic liquids, and further widen the synthesized ionic liquid species.

公开(公告)号：US10411301B2

公开(公告)日：2019-09-10

申请号：US15413396

申请日：2017-01-23

Applicant: Microvast Power Systems Co., Ltd.

Inventor： Zhuoqun Zheng ,  Dawei Shen ,  Zhenyu Fei

IPC: H01M4/02 ,  H01M10/0568 ,  C07C211/63 ,  C07D207/06 ,  C07D207/20 ,  C07D295/037 ,  H01M10/0525 ,  C07C311/09 ,  H01M10/0569

Abstract: The present disclosure provides an ionic liquid and a preparation method thereof, in particular, the present disclosure provides an ionic liquid whose halogen anions content and moisture content are low, and a method for preparing the same. The total content of halogen anions in the ionic liquid is less than 10 ppm, and moisture content in the ionic liquid is less than 50 ppm. The ionic liquid prepared by the method of the present disclosure is suitable for electrochemical systems which have high requirements for moisture content, such as lithium ion secondary batteries and electrochemical supercapacitors.

公开(公告)号：US20170077557A1

公开(公告)日：2017-03-16

申请号：US15261942

申请日：2016-09-10

Applicant: Microvast Power Systems Co., Ltd.

Inventor： Zhuoqun Zheng ,  Dawei Shen ,  Jian Qiu ,  Yunhua Nie ,  Xiaozhen Zhao ,  Danyi Li

IPC: H01M10/42 ,  H01M10/0568 ,  H01M10/0569 ,  H01M10/0525

CPC classification number: H01M10/4235 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2300/0028

Abstract: The present invention relates to a preparation method of ionic liquids, particularly to a one-step reaction method used for synthesizing quaternary ammonium compounds or quaternary phosphonium compounds. In the method, a nitrogenous or phosphorous compound, a proton compound, and a carbonate ester are added into a reactor simultaneously to synthesize corresponding the quaternary ammonium ionic liquid or the quaternary phosphonium ionic liquid through said one-step reaction, i.e., ‘one-pot method’ reaction, during which three reactants are involved. The present invention also provides a lithium ion secondary battery comprising the ionic liquid prepared by above-mentioned preparation method. The ionic liquid preparation method of the present invention can widen the choice range of raw materials needed when preparing ionic liquids, and further widen the synthesized ionic liquid species.

Abstract translation: 本发明涉及离子液体的制备方法，特别涉及用于合成季铵化合物或季鏻化合物的一步反应方法。 在该方法中，同时向反应器中加入含氮或磷化合物，质子化合物和碳酸酯，以通过所述一步反应合成对应的季铵离子液体或季鏻离子液体，即“ 锅法“反应，其中涉及三种反应物。 本发明还提供一种锂离子二次电池，其包含通过上述制备方法制备的离子液体。 本发明的离子液体制备方法可以拓宽制备离子液体所需的原料的选择范围，进一步拓宽合成的离子液体种类。

公开(公告)号：US11205821B2

公开(公告)日：2021-12-21

申请号：US16082269

申请日：2017-01-05

Applicant: Microvast Power Systems Co., Ltd.

Inventor： Qingjin Sun ,  Dawei Shen ,  Zuliang Shen ,  Hui Wu ,  Xiang Li

IPC: H01M50/403 ,  B01D71/56 ,  B01D67/00 ,  H01M10/0525 ,  H01M50/446

Abstract: The present invention provides a method for preparing an aromatic polyamide porous membrane and an aromatic polyamide porous membrane prepared by the above method. The method for preparing an aromatic polyamide porous membrane includes the following steps: mixing an ionic liquid with an aromatic polyamide into a solvent to form a mixed solution; the mixed solution forming a membrane in a coagulation bath; and extracting with an extractant to remove the solvent and the ionic liquid from the membrane to yield a porous membrane. In the method of the present invention, the application of the ionic liquid would greatly reduce the application of additives; further, the ionic liquid has a high stability and is easy to be separated from other solvents and be recycled, which assures the safety during the usage and recycle thereof.

公开(公告)号：US09365596B2

公开(公告)日：2016-06-14

申请号：US14565250

申请日：2014-12-09

Applicant: Microvast Power Systems Co.,Ltd.

Inventor： Zhuoqun Zheng ,  Dawei Shen ,  Yunhua Nie ,  Jian Qiu ,  Yumei Zhang

IPC: C07F9/54 ,  C07F9/6568 ,  H01M10/0566 ,  H01M10/0525

CPC classification number: C07F9/5407 ,  C07F9/5442 ,  C07F9/65688 ,  H01M10/0525 ,  H01M10/0566 ,  H01M2300/0025 ,  Y02E60/122

Abstract: A two-step pathway for preparing high pure quaternary phosphonium salts is disclosed. In the first step, hydrogen phosphide (PH3) or a higher phosphine reacts with a protonic compound to produce a phosphonium salt, which then reacts with a carbonic acid diester to produce a quaternary phosphonium salt in the second step. On one hand, hydrogen phosphide (PH3) and higher phosphines, including primary phosphines, secondary phosphines, and tertiary phosphines, after neutralization with protonic compound, become sufficiently reactive and can be alkylated by carbonic acid diester to form quaternary phosphonium cations. On the other hand, as an anion-exchange procedure is completely avoided, the process not only gives quaternary phosphonium salts of high purity, but also gives people freedom to design the cation and the anion of a quaternary phosphonium salt synchronously by choosing a preferred phosphine and a protonic compound that can supply a desired anion.

Abstract translation: 公开了制备高纯度季鏻盐的两步途径。 在第一步中，磷化氢（PH3）或高级膦与质子化合物反应产生鏻盐，然后在第二步中与铯盐与碳酸二酯反应生成季鏻盐。 一方面，在用质子化合物中和之后，磷化氢（PH 3）和高级膦（包括伯膦，次膦和叔膦）变得足够的反应性，并且可以被碳酸二酯烷基化以形成季鏻阳离子。 另一方面，由于完全避免了阴离子交换过程，因此该方法不仅可以提供高纯度的季鏻盐，而且可以让人们通过选择优选的膦来同时自由地设计季鏻盐的阳离子和阴离子 以及可以提供所需阴离子的质子化合物。