Patents by Inventor Dixiong Zhou

Dixiong Zhou has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10084205
    Abstract: The present invention relates to electrolyte of a high-voltage lithium-ion battery, comprising a non-aqueous organic solvent, lithium salt and an electrolyte additive; the electrolyte additive comprises the following ingredients based on the total weight of the electrolyte: 1%-10% of fluoroethylene carbonate, 1%-5% of dinitrile compound and 0.1%-2% of 2-methyl maleic anhydride; further, the electrolyte can be further added with additives such as 0.2%-2% of lithium bisoxalatoborate and 1,3-propane sultone. The present invention also relates to a high-voltage lithium-ion battery using the electrolyte, with the charging cut-off voltage being greater than 4.2V and smaller than or equal to 4.5V. The electrolyte of the high-voltage lithium-ion battery provided by the present invention can protect the positive electrode and also form good SEI at the negative electrode, and the high-voltage lithium-ion battery has good cycle performance and storage performance.
    Type: Grant
    Filed: October 22, 2014
    Date of Patent: September 25, 2018
    Assignee: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD.
    Inventors: Qiao Shi, Muchong Lin, Dixiong Zhou
  • Publication number: 20180083316
    Abstract: A non-aqueous electrolyte for a lithium-ion battery, and the lithium-ion battery. The non-aqueous electrolyte comprises an organic solvent, a lithium salt, and an additive. The additive comprises 0.1 wt % to 2 wt % of 1,2,3-trifluorobenzene calculated according to the weight of the non-aqueous electrolyte. By adding 1,2,3-trifluorobenzene to the electrolyte as the additive, the compatibility of the electrolyte and an electrode sheet can be effectively improved and the permeability of the electrolyte on the electrode can be improved; and the 1,2,3-trifluorobenzene has the positive electrode film forming effect, and accordingly the positive electrode can be protected and the high-temperature energy storage performance and the cycle performance can be improved.
    Type: Application
    Filed: July 9, 2015
    Publication date: March 22, 2018
    Applicant: SHENZHEN CAPCHEM TECHNOLOGY CO., LTD
    Inventors: Qiao SHI, Muchong LILN, Dixiong ZHOU, Hailing ZHANG
  • Publication number: 20160301104
    Abstract: The present invention relates to electrolyte of a high-voltage lithium-ion battery, comprising a non-aqueous organic solvent, lithium salt and an electrolyte additive; the electrolyte additive comprises the following ingredients based on the total weight of the electrolyte: 1%-10% of fluoroethylene carbonate, 1%-5% of dinitrile compound and 0.1%-2% of 2-methyl maleic anhydride; further, the electrolyte can be further added with additives such as 0.2%-2% of lithium bisoxalatoborate and 1,3-propane sultone. The present invention also relates to a high-voltage lithium-ion battery using the electrolyte, with the charging cut-off voltage being greater than 4.2V and smaller than or equal to 4.5V. The electrolyte of the high-voltage lithium-ion battery provided by the present invention can protect the positive electrode and also form good SEI at the negative electrode, and the high-voltage lithium-ion battery has good cycle performance and storage performance.
    Type: Application
    Filed: October 22, 2014
    Publication date: October 13, 2016
    Inventors: Qiao Shi, Muchong Lin, Dixiong Zhou