Shenzhen Corliber Scientific Co., Ltd.

Luxshare Precision Industry Company Limited

Byd Company Limited

Peking University

Feng Pan

Yang Sun

Dong Xiang

Yucheng Huang

Bin Huang

Kun-Lin Yao

Frank Zhang

Xiaojun Wang

Yuan Lin

Hua Guo

Wen Li

Jiangtao Hu

Tongchao Liu

Yandong Duan

Xiaohe Song

Bingkai Zhang

Zengqing Zhuo

Jiaxin Zheng

Yidong Liu

The present invention relates to an absorbable biomedical composite material and a preparation method therefor, wherein the absorbable biomedical composite material comprises: a substrate particle containing a calcium phosphate compound; an intermediate layer which is coated on the surfaces of the substrate particle and has a first glass transition temperature, the first glass transition temperature being not higher than a normal body temperature; and a polymer matrix which is formed on the outer surface of the intermediate layer and has a second glass transition temperature, the second glass transition being higher than the first glass transition temperature. The present invention can provide an absorbable biomedical composite material which not only increases the mechanical strength but also improves the toughness.

Absorbable biomedical polylactic acid composite material and preparation method therefor

Biomedical composite material and preparation method therefor

Provided are an absorbable biomedical composite material and a preparation method therefor. The absorbable biomedical composite material comprises: substrate granules containing a calcium-phosphorus compound; an intermediate layer which is coated on the surface of each of the substrate granules and has a first glass transition temperature, the first glass transition temperature being not higher than normal human body temperature; and a polymer matrix which is formed on the outer surface of the intermediate layer and has a second glass transition temperature, the second glass transition being higher than the first glass transition temperature. The absorbable biomedical composite material has increased mechanical strength and also improved toughness.

Absorbable biomedical composite material and preparation method therefor

A supercapacity lithium ion battery cathode material, a preparation method therefor and an application thereof. The supercapacity lithium ion battery cathode material consists of a transition metal-containing lithium ion cathode material and carbon which is coated on the surface of the lithium ion cathode material. The transition metal on the surface of the lithium ion cathode material is coordinated with carbon by means of X&#x2014;C bonds to form transition metal-X&#x2014;C chemical bonds, such that carbon stably coats the surface of the cathode material, wherein C is SP3 hybridization and/or SP2 hybridization, and X is at least one selected from among N, O and S. The supercapacity lithium ion battery cathode material connects the lithium ion cathode material and the carbon by means of the transition metal-X&#x2014;C chemical bonds, and utilizes the transition metal-X&#x2014;C chemical bonds to repair boundary of lattices on the surface of the cathode material, such that an interface between the lithium ion cathode material and a carbon layer can be optimized, to form an interface that can store Li, thereby increasing the per gram capacity of the cathode material, and laying the foundation for preparing a supercapacity lithium ion battery.

Supercapacity lithium ion battery cathode material, preparation method therefor and application thereof

A connector assembly includes a first connector, a second connector and a metal housing. The first connector includes an insulating body, conductive terminals, and a first cable, each conductive terminal having a contact portion. The second connector includes a sub-circuit board and a second cable connected to the sub-circuit board, the sub-circuit board having a butting end facing the first connector, and gold fingers being distributed on the surface of the butting end. The metal housing is provided with an insertion hole, the insertion hole having a front insertion opening at the front end of the metal housing and a rear insertion opening at the rear end of the metal housing. The first connector is inserted into the insertion hole from the front insertion opening, and the second connector is inserted into the insertion hole from the rear insertion opening. The contact portions are in contact with the gold fingers.

Connector assembly with metal housing for connection between first and second connectors

An electrical connector assembly includes a metal housing for being installed on a printed circuit board, a first connector, and a second connector. The metal housing is provided with a receiving space. The receiving space has a first insertion opening and a second insertion opening, the first insertion opening is located at the front end of the metal housing, and the second insertion opening is located at the rear end of the metal housing. The first connector is inserted into the receiving space through the first insertion opening, and the second connector is inserted into the receiving space through the second insertion opening and butted with the first connector. The first connector and the metal housing are permanently locked with each other by a buckle structure therebetween, such that the first connector cannot be disengaged from the metal housing.

Electrical connector assembly

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Feng Pan