Patents by Inventor Mingzhu Sun
Mingzhu Sun 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).
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Publication number: 20240055577Abstract: Provided are a cobalt-free positive electrode material, a preparation method thereof and a lithium ion battery. The preparation method includes: first sintering step is performed on a lithium source material and a cobalt-free precursor, to obtain a sintered product; the sintered product is crushed to 1 to 2 ?m, to obtain a cobalt-free single crystal material; and second sintering step is performed on the cobalt-free single crystal material, a boron coating agent and a carbon coating agent, to obtain the cobalt-free positive electrode material. The cobalt-free positive electrode material prepared by the above method has advantages of stable structure, high electric capacity, excellent current rate performance and good cycle performance and the like.Type: ApplicationFiled: October 28, 2020Publication date: February 15, 2024Inventors: Weijun JIANG, Hongxin YANG, Qiqi QIAO, Mingzhu SUN, Xinpei XU, Zetao SHI, Sixian CHEN, Jiali MA, Pengfei WANG
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Publication number: 20230335713Abstract: A positive electrode material, a preparation method therefor and a lithium ion battery. The positive electrode material has a core-shell structure, the core layer comprises a cobalt-free single crystal positive electrode active material, and the shell layer comprises LiAlO2 and LiFePO4. By coating the surface of the cobalt-free single crystal positive electrode active material with LiAlO2 and LiFePO4, the conductivity of the cobalt-free single crystal layered positive electrode material is improved, thereby improving the capacity, the rate and the cyclability of the material.Type: ApplicationFiled: December 11, 2020Publication date: October 19, 2023Applicant: SVolt Energy Technology Co., Ltd.Inventors: Qiqi Qiao, Weijun Jiang, Mingzhu Sun, Xinpei XU, Zetao Shi, Jiali MA, Pengfei Wang, Sixian Chen
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Publication number: 20230079339Abstract: Provided are a lithium nickel manganese oxide composite material, a preparation method thereof and a lithium ion battery. The preparation method includes: a first calcining process is performed on a nano-oxide and a nickel-manganese precursor, to obtain an oxide-coated nickel-manganese precursor; and a second calcining process is performed on the precursor and a lithium source material, to obtain the lithium nickel manganese oxide, and a temperature of the first calcining process is lower than the second calcining process. At a lower temperature, the nano-oxide may be melted, a denser nano-oxide coating layer is formed on the surface of the precursor, so the oxide-coated nickel-manganese precursor is obtained. At a higher temperature, the nano-oxide, a nickel-manganese material and a lithium element may be more deeply combined. A problem that the nano-oxide layer is easy to fall off is solved, and cycle performance of the lithium nickel manganese oxide is greatly improved.Type: ApplicationFiled: October 28, 2020Publication date: March 16, 2023Inventors: Jiali MA, Hongxin YANG, Weijun JIANG, Qiqi QIAO, Mingzhu SUN, Xinpei XU, Zetao SHI, Pengfei WANG, Sixian CHEN
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Publication number: 20230032851Abstract: A composite positive electrode material for a lithium ion battery, a preparation method therefor, and a use thereof. The composite positive electrode material comprises a positive electrode material core and a halide coating layer that is coated on the surface of the positive electrode material core, wherein halide comprises Li3YX6, and X is at least one among halogens. By means of the coating of the halide coating layer, the ionic conductivity and structural stability of the positive electrode material are greatly increased, which reduces the surface impedance of the material.Type: ApplicationFiled: December 11, 2020Publication date: February 2, 2023Applicant: SVolt Energy Technology Co., Ltd.Inventors: Xinpei Xu, Hongxin Yang, Weijun Jiang, Qiqi Qiao, Mingzhu Sun, Zetao Shi, Pengfei Wang, Jiali Ma, Sixian Chen
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Publication number: 20230036288Abstract: A cobalt-free single crystal composite material, and a preparation method therefor and a use thereof. The cobalt-free single crystal material is of a core-shell structure, the core layer is the cobalt-free single crystal material, and the shell layer is prepared from TiNb2O7 and conductive lithium salt. The TiNb2O7 and the conductive lithium salt are selected as materials of the shell layer to coat the cobalt-free single crystal material, thereby improving the lithium ion conductivity of the cobalt-free single crystal material, and further improving the capacity and the first effect of the material.Type: ApplicationFiled: December 11, 2020Publication date: February 2, 2023Applicant: SVOLT ENERGY TECHNOLOGY CO., LTD.Inventors: Pengfei Wang, Weijun Jiang, Qigi Qiao, Mingzhu Sun, Xinpei Xu, Zetao Shi, Jiali Ma, Sixian Chen
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Publication number: 20230025787Abstract: A cobalt-free positive electrode material and a preparation method therefor, a lithium ion battery positive electrode, and a lithium ion battery, relating to the technical field of lithium ion batteries. The positive electrode material comprises a core and a shell covering the core, the core being a cobalt-free positive electrode material, the chemical formula of the core being LiNixMnyO2, wherein 0.55?x?0.95 and 0.05?y?0.45, and the shell is a coating agent and carbon. The present method can improve the dispersibility of the cobalt-free positive electrode material during the coating process, and can also improve the conductivity of the cobalt-free positive electrode material.Type: ApplicationFiled: December 8, 2020Publication date: January 26, 2023Applicant: Svolt Energy Technology Co., Ltd.Inventors: Qiqi Qiao, Weijun Jiang, Mingzhu Sun, Xinpei XU, Zetao Shi, Jiali MA, Sixian Chen, Pengfei Wang
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Publication number: 20230024237Abstract: A gradient doped cobalt-free positive electrode material and a preparation method therefor, a lithium-ion battery positive electrode, and a lithium battery. The positive electrode material consists of LiNixMnyAzO2. The content of element A in the positive electrode material decreases in a direction from a surface layer of the positive electrode material to the center, and A is one or more of Al, Zr, Ti, B, and W. The preparation method is easy to implement, simplifies roasting condition requirements, and provides a cobalt-free positive electrode material having good cycle performance.Type: ApplicationFiled: December 17, 2020Publication date: January 26, 2023Applicant: SVolt Energy Technology Co., Ltd.Inventors: Qiqi Qiao, Weijun Jiang, Mingzhu Sun, Xinpei Xu, Zetao Shi, Jiali Ma, Sixian Chen, Pengfei Wang
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Patent number: 10413633Abstract: The present invention provides a peripheral nerve growth conduit for peripheral nerve repair, in particular conduits through which peripheral nerves can grow. The conduit includes poly-?-caprolactone (PCL). Preferably, the inner (luminal) surface of the conduit comprises pits having a depth of 1-4?m. Suitably, the conduit may also include poly-lactic acid (PLA). The inner surface of the conduit may have been treated with an alkaline composition. The present invention also provides a method for treating a peripheral nerve damage using a peripheral nerve growth conduit including poly-?-caprolactone (PCL). The present invention also provides a kit for treating a peripheral nerve damage having a peripheral nerve growth conduit including poly-?-caprolactone (PCL).Type: GrantFiled: October 16, 2015Date of Patent: September 17, 2019Assignee: THE UNIVERSITY OF MANCHESTERInventors: Sandra Downes, Giorgio Terenghi, Mingzhu Sun, Paul Kingham
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Publication number: 20160082149Abstract: The present invention provides a peripheral nerve growth conduit for peripheral nerve repair, in particular conduits through which peripheral nerves can grow. The conduit includes poly-?-caprolactone (PCL). Preferably, the inner (luminal) surface of the conduit comprises pits having a depth of 1-4 ?m. Suitably, the conduit may also include poly-lactic acid (PLA). The inner surface of the conduit may have been treated with an alkaline composition. The present invention also provides a method for treating a peripheral nerve damage using a peripheral nerve growth conduit including poly-?-caprolactone (PCL). The present invention also provides a kit for treating a peripheral nerve damage having a peripheral nerve growth conduit including poly-?-caprolactone (PCL).Type: ApplicationFiled: October 16, 2015Publication date: March 24, 2016Inventors: Sandra Downes, Giorgio Terenghi, Mingzhu Sun, Paul Kingham
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Publication number: 20130184724Abstract: The present invention provides a peripheral nerve growth scaffold including poly ?-caprolactone (PCL) and microgrooves on an inner surface of the scaffold, the scaffold being adapted for use in treatment of damaged peripheral nerves. The microgrooves are suitably arranged as a pattern or array and preferably comprise sloping side walls, which arrangement has been found to provide a favourably environment for nerve and Schwann cell growth and proliferation. Experimental results demonstrate directed and aligned growth, which suitably reduces the rate of formation of neuromas. Embodiments comprising a PCL-PLA blend of the sloping side wall and a groove width greater than the spacing between adjacent grooves has been found to be particularly effective for directed cell growth and proliferation.Type: ApplicationFiled: September 16, 2011Publication date: July 18, 2013Applicant: THE UNIVERSITY OF MANCHESTERInventors: Sandra Downes, Mingzhu Sun, Seyedeh Atefeh Mobasseri, Giorgio Terenghi
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Publication number: 20110245852Abstract: The present invention provides a peripheral nerve growth conduit for peripheral nerve repair, in particular conduits through which peripheral nerves can grow. The conduit includes poly-?-caprolactone (PCL). Preferably, the inner (luminal) surface of the conduit comprises pits having a depth of 1-4 ?m. Suitably, the conduit may also include poly-lactic acid (PLA). The inner surface of the conduit may have been treated with an alkaline composition. The present invention also provides a method for treating a peripheral nerve damage using a peripheral nerve growth conduit including poly-?-caprolactone (PCL). The present invention also provides a kit for treating a peripheral nerve damage having a peripheral nerve growth conduit including poly-?-caprolactone (PCL).Type: ApplicationFiled: March 4, 2011Publication date: October 6, 2011Inventors: Sandra Downes, Giorgio Terenghi, Mingzhu Sun, Paul Kingham