公开(公告)号：US20180062203A1

公开(公告)日：2018-03-01

申请号：US15558551

申请日：2015-11-24

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD

Inventor： Qiao SHI ,  Shiguang HU ,  Qun CHEN ,  Qi HUANG ,  Xue ZHOU

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M10/0569 ,  H01M10/0568 ,  H01M4/131

CPC classification number: H01M10/0567 ,  H01M4/131 ,  H01M4/133 ,  H01M10/0525 ,  H01M10/0568 ,  H01M10/0569 ,  H01M2220/20 ,  H01M2300/004

Abstract: Disclosed is a lithium ion battery non-aqueous electrolyte and a lithium ion battery, in which the electrolyte comprises: a non-aqueous organic solvent, a lithium salt and an additive, said additive comprises: a compound represented by the structural formula 1 and a compound represented by the structural formula 2, in which R is an alkyl selected from an alkyl group having 1 to 4 carbon atoms, the ratio of the content of the compound represented by the structural formula 1 to the total mass of the lithium ion battery non-aqueous electrolyte is 0.1% to 2%, and the ratio of the content of the compound represented by the structural formula 2 to the total mass of the lithium ion battery non-aqueous electrolyte is less than 0.5%.

公开(公告)号：US20170110260A1

公开(公告)日：2017-04-20

申请号：US14655289

申请日：2014-06-26

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Zhongtian Zheng ,  Yingjie Cao ,  Chaowei Cao ,  Longliang Xue ,  Xiaoxia Xiang

IPC: H01G11/62 ,  H01G11/32 ,  H01G11/60

CPC classification number: H01G11/62 ,  H01G11/32 ,  H01G11/60 ,  Y02E60/13

Abstract: The present invention relates to the electrochemical field, particularly to an electrolyte solute and an electrolyte that are used for a high-voltage supercapacitor, and a high-voltage supercapacitor using the electrolyte. The anion of the electrolyte solute may be one or more selected from tetrafluoroborate, hexafluorophosphate, bis(trifluoromethylsulfonyl) imide, tris (trifluoromethylsulfonyl) methyl and perfluoroalkyl sulfonate, and the cation may be N-methyl-1,4-diazabicyclo[2.2.2]octane ammonium, N,N-dimethyl-1,4-diazabicyclo[2.2.2]octane ammonium, N-methyl-1-azabicyclo[2.2.2] octane ammonium. The high-voltage supercapacitor fabricated by using the electrolyte formulated by the electrolyte solute of the present invention can work stably for a long period of time at a voltage of 2.7 V to 3.2 V, the energy density is greatly increased, the property of high power density is maintained, and the working life is prolonged.

公开(公告)号：US12183883B2

公开(公告)日：2024-12-31

申请号：US17434016

申请日：2020-04-10

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Zhongbo Liu ,  Yuanyuan Kang ,  Furen Zheng ,  Yonghong Deng

IPC: H01M10/0565 ,  H01M10/0525

Abstract: In order to overcome the problem of low ionic conductivity in the existing polymer solid electrolyte, the disclosure provides a solid electrolyte, comprising a polymer, a lithium salt and an additive, the additive is selected from an aprotic organic solvent with a carbon number lower than 10 and a relative dielectric constant higher than 3.6; the mass content of the lithium salt is 30%˜90%, and the mass content of the additive is 0.01%˜2%, based on the total mass of the solid electrolyte being 100%. Further provided is a polymer lithium ion battery comprising the solid electrolyte. According to the solid electrolyte of the disclosure, a trace amount of small molecule aprotic organic solvent with high dielectric constant is introduced as an additive, which can inhibit crystallization of the solid electrolyte, promote transmission of lithium ions in the electrolyte, and improve the ionic conductivity of the solid electrolyte at room temperature.

公开(公告)号：US20240313213A1

公开(公告)日：2024-09-19

申请号：US18251436

申请日：2023-03-10

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Yunxian QIAN ,  Shiguang HU ,  Yonghong DENG ,  Hongmei LI ,  Xiaoxia XIANG ,  Yong WANG ,  Zhaohua ZHANG

IPC: H01M4/525 ,  H01M4/02 ,  H01M4/131 ,  H01M4/36 ,  H01M4/62 ,  H01M10/0525 ,  H01M10/0567

CPC classification number: H01M4/525 ,  H01M4/131 ,  H01M4/366 ,  H01M4/628 ,  H01M10/0525 ,  H01M10/0567 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2300/0025

Abstract: A positive electrode sheet includes a positive electrode current collector and a positive electrode material layer formed on the positive electrode current collector. The positive electrode material layer includes a high-nickel positive electrode material represented by formula I and a compound represented by formula II: LiaNiqCoyMzO2, Formula I, where 0.9≤a≤1.2, 0.7≤q≤1, y≥0, z≥0, and q+y+z=1. M is selected from one or both of Mn and Al. R1, R2, and R3 are each independently selected from an alkyl group of 1 to 5 carbon atoms, a fluoroalkyl group of 1 to 5 carbon atoms, an ether group of 1 to 5 carbon atoms, a fluoroether group of 1 to 5 carbon atoms, an unsaturated hydrocarbonyl group of 2 to 5 carbon atoms.

公开(公告)号：US20240189802A1

公开(公告)日：2024-06-13

申请号：US18044219

申请日：2022-10-28

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Zhongtian ZHENG ,  Tianqian HE ,  Yuanyuan KANG ,  Qiyou HUANG

IPC: B01J27/24 ,  C07D317/26

CPC classification number: B01J27/24 ,  C07D317/26

Abstract: The present disclosure provides a use of a catalyst for catalyzing a reaction of an epoxide compound and carbon dioxide, the catalyst includes a spirocyclic compound including at least one compound of formula (1):




where X is selected from nitrogen, or phosphorus; Y is selected from halogens; A and B are independently selected from materials having formulae (a) to (d). Compared with catalysts with a non-spirocyclic structure or Lewis acid metal catalysts, the catalyst including the spirocyclic compound having the structural shown in formula 1 has the advantages of better catalytic effect, more stable performance and longer service life when catalyzing the reaction of the epoxy compounds and carbon dioxide. The present catalyst has both high efficiency and safety, and thus has broad application prospects.

公开(公告)号：US20230402653A1

公开(公告)日：2023-12-14

申请号：US18036400

申请日：2021-11-17

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Yunxian Qian ,  Shiguang Hu ,  Hongmei Li ,  Xiaogang Yuan ,  Yonghong Deng

IPC: H01M10/0567 ,  H01M10/0525 ,  H01M4/58 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/42 ,  C07C265/14

CPC classification number: H01M10/0567 ,  H01M10/0525 ,  H01M4/5825 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/4235 ,  C07C265/14 ,  H01M2004/028

Abstract: The application relates to the technical field of lithium ion batteries and discloses a lithium ion battery. The lithium ion battery comprises a positive electrode, a negative electrode, a separator arranged between the positive electrode and negative electrode, and a non-aqueous electrolyte; an active material of the positive electrode comprises LiFePO4, the non-aqueous electrolyte comprises an organic solvent, a lithium salt, vinylene carbonate and a compound represented by Formula (1), wherein R1 is one or more of chain, cyclic and aromatic group with 2-20 carbon atoms, and a compacted density of the positive electrode material is more than 2 g/cm3. The lithium ion battery provided by the application may obviously improve the cycle and storage performances at high temperature, greatly improve the capacity retention rate and capacity recovery rate of battery, obviously reduce the thickness expansion rate after high-temperature storage, and meanwhile, greatly reduce the precipitation of iron ions.

公开(公告)号：US20230174499A1

公开(公告)日：2023-06-08

申请号：US18081715

申请日：2022-12-15

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Baichun Yang ,  Qiyou Huang ,  Zihao Ye ,  Ao He

IPC: C07D317/38

CPC classification number: C07D317/38

Abstract: The present invention relates to the technical field of chemical industry, and in particular to a method for purifying ethylene carbonate through dynamic crystallization, which includes the following steps: adding an ethylene carbonate-containing raw material into a cavity of a crystallization device under a condition of stirring for dynamic crystallization, wherein the crystallization device further includes a jacket attached and circumferentially disposed along the outer wall of the cavity, the jacket is provided with cooling water therein, a temperature of the cooling water is 1-2.5° C. lower than the temperature in the cavity until a granular ethylene carbonate crystal is generated. The present invention using a rake dryer as the crystallization device to realize dynamic crystallization at a certain rotating speed. The technical solution is simple to operate and short in processing cycle, which facilitates improvement in production efficiency and product quality and is suitable for industrial application.

公开(公告)号：US20220140389A1

公开(公告)日：2022-05-05

申请号：US17434016

申请日：2020-04-10

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Zhongbo Liu ,  Yuanyuan Kang ,  Furen Zheng ,  Yonghong Deng

IPC: H01M10/0565 ,  H01M10/0525

Abstract: In order to overcome the problem of low ionic conductivity in the existing polymer solid electrolyte, the disclosure provides a solid electrolyte, comprising a polymer, a lithium salt and an additive, the additive is selected from an aprotic organic solvent with a carbon number lower than 10 and a relative dielectric constant higher than 3.6; the mass content of the lithium salt is 30%˜90%, and the mass content of the additive is 0.01%˜2%, based on the total mass of the solid electrolyte being 100%. Further provided is a polymer lithium ion battery comprising the solid electrolyte. According to the solid electrolyte of the disclosure, a trace amount of small molecule aprotic organic solvent with high dielectric constant is introduced as an additive, which can inhibit crystallization of the solid electrolyte, promote transmission of lithium ions in the electrolyte, and improve the ionic conductivity of the solid electrolyte at room temperature.

公开(公告)号：US11120948B2

公开(公告)日：2021-09-14

申请号：US16055172

申请日：2018-08-06

Applicant: Shenzhen Capchem Technology Co., Ltd.

Inventor： Liqing Huang ,  Yun Jia ,  Fengliang Huang ,  Mingjie Wang

IPC: H01G9/035 ,  H01G9/145

Abstract: An electrolyte for an aluminum electrolysis capacitor and the aluminum electrolysis capacitor using the electrolyte are provided. The electrolyte comprises a primary solute, a primary solvent, and an additive as shown in a structural formula 1, wherein, R1 and R2 are each independently selected from —CH3, —CH2CH3 or —OH; R3 and R4 are each in selected from —(CH2CH2O)mH or —H, and n and m are integrals ranging from 1 to 10000, respectively. The electrolyte has excellent anti-corrosive performance and is capable of maintaining long load service life under the condition of relatively high chlorine ion content, and there is no evidence of corrosion in the capacitor after it is disassembled.

公开(公告)号：US10923762B2

公开(公告)日：2021-02-16

申请号：US16316618

申请日：2016-12-29

Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.

Inventor： Qiao Shi ,  Shiguang Hu ,  Xionggui Lin ,  Jiaojiao Yun

IPC: H01M10/0525 ,  H01M10/0567 ,  H01M4/525 ,  H01M4/38 ,  H01M4/587 ,  H01M4/36

Abstract: A lithium-ion battery, comprising a cathode, an anode, and a non-aqueous electrolyte; the cathode comprises a cathode active material and a metal oxide and/or metal fluoride coating which covers the surface of the cathode active material; the cathode active material is at least one of materials illustrated in general formula I or II: formula I: LixNiyM1-yO2, wherein 0.5≤x≤1.2, 0.5≤y≤1, and M is selected from at least one of Co, Mn, Al, Ti, Fe, Zn, Zr, Cr, and formula II: LikCozL1-zO2, wherein 0.5≤k≤1.2, 0.5