Abstract: The present invention provides a single-crystal high-nickel positive electrode material and a preparation method therefor and an application thereof. The preparation method comprises the following steps: (1) mixing a precursor, a lithium source, and a nano oxide, and performing primary sintering treatment in an oxygen-containing atmosphere to obtain a primary sintered material; and (2) mixing the primary sintered material obtained in step (1) with a titanium source and a cobalt source, and performing secondary sintering treatment in an oxygen-containing atmosphere to obtain the single-crystal high-nickel positive electrode material. The present invention uses a Ti/Co co-coating method, the residual alkali amount of the prepared single-crystal high-nickel positive electrode material can be greatly reduced, and the capacity and the rate capability can also be kept at a high level, so that the technological process is reduced, and the cost is reduced.

Abstract: A composite material and a preparation method therefor and a lithium-ion battery positive electrode material. The preparation method for the composite material comprises the following steps: performing first calcination treatment on a mixture of a manganese source, a nickel source, a lithium source and a cobalt source to obtain cobalt-doped lithium nickel manganese oxide; and performing second calcination treatment on a mixture of the cobalt-doped lithium nickel manganese oxide and silicon dioxide.

Abstract: Provided is a method for preparing a layered positive electrode material, comprising the following steps: (1) mixing layered nickel cobalt manganese hydroxide with a lithium source, carrying out primary sintering in an oxygen atmosphere, pulverizing and sieving to obtain a primary sintering product; and (2) carrying out secondary sintering on the primary sintering product in a sulfur dioxide atmosphere to obtain a layered positive electrode material, of which the chemical formula is NiaCobMnc(OH)2, wherein 0.3?a?0.95, 0.03?b?0.12, 0.01?c?0.10, and a+b+c=1. Also provided are a layered positive electrode material obtained by the preparation method and a lithium-ion battery comprising the layered positive electrode material.

Abstract: An information processing method is provided. The method includes: receiving a connection request of establishing a call connection, the connection request including a communication identifier of a requester; upon determining the communication identifier of the requester meeting a privacy condition, verifying an identity of a responder; and determining whether to permit a response of the responder to the connection request based on a verification result of the identity of the responder.

Abstract: An information processing method is provided. The method includes: receiving a connection request of establishing a call connection, the connection request including a communication identifier of a requester; upon determining the communication identifier of the requester meeting a privacy condition, verifying an identity of a responder; and determining whether to permit a response of the responder to the connection request based on a verification result of the identity of the responder.

Abstract: The present invention relates to aluminium-ionic liquid-graphite batteries (AILGB), comprising an improved cathode material selected from the group of flake-shaped graphite. Particularly suitable flake shaped graphite contains flakes having an average plane size diameter of 5-5000 a thickness of 1-200 ?m and an aspect ratio (plane size:thickness) of 100:1 to 5:1. The invention further relates to methods of manufacturing such flake-shaped graphite and such batteries as well as to the use of such flake-shaped graphite.

Abstract: A supramolecular approach has been developed for preparation of size-controllable nanoparticles, from three different molecular building blocks.

Abstract: The present invention provides devices and methods for capturing rare cells. The devices and methods described herein can be used to facilitate the diagnosis and monitoring of metastatic cancers.

Abstract: The present invention provides devices and methods for capturing rare cells. The devices and methods described herein can be used to facilitate the diagnosis and monitoring of metastatic cancers.

Abstract: The present invention provides devices and methods for capturing rare cells. The devices and methods described herein can be used to facilitate the diagnosis and monitoring of metastatic cancers.

Abstract: Provided is a method of forming large-area directionally aligned nanowires on a silicon wafer surface with hydrophobic silicon pillars so as to form microelectrode-pair arrays, which belongs to the field of electronic circuit.

Abstract: Provided is a method of forming large-area directionally aligned nanowires on a silicon wafer surface with hydrophobic silicon pillars so as to form microelectrode-pair arrays, which belongs to the field of electronic circuit.

Abstract: The present invention provides devices and methods for capturing rare cells. The devices and methods described herein can be used to facilitate the diagnosis and monitoring of metastatic cancers.

Abstract: A supramolecular approach has been developed for preparation of size-controllable nanoparticles, from three different molecular building blocks.