Gem Co., Ltd.

Oneplus Technology (shenzhen) Co., Ltd.

Jingmen Gem Co., Ltd

Tencent Technology (shenzhen) Company Limited

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Wonderland Switzerland Ag

South University of Science and Technology of China

Gem (hubei) New Energy Materials Co., Ltd.

Bambino Prezioso Switzerland Ag

Kun Zhang

Kaihua Xu

Haoran Liu

Zhenkang Jiang

Yizhong Fan

Yan Zhang

Xiao Xiao

Bo Liu

Manqun Cheng

Lei Zheng

Meng Zhang

Cong Li

Zhengwen Guo

Rong Zhang

Xiaolong Mo

Ruyi Li

Yingzhong Chen

Kang Chen

Huafeng Ma

Zujian Liu

Bifeng Zhang

Rong Liu

Zongwang Cui

Chenguang Liu

Jun Wang

Jinglin Cai

Qinxiang Li

Tongyi Guo

Xiaofei Xue

Liangjiao Fan

Pinlian Han

Haibo Sun

Shilei Liu

Zhiping Feng

Yanbo Ma

Jian Yang

Yongan Chen

Yanqing Lai

Xiaopeng Huang

Weifeng Ding

Liangxing Jiang

Chenwei Li

Kuiguo Wang

Renkui Shen

Yunhe Zhang

Xiang Zhang

Rui He

Songlin He

Hui Wu

Qiliang Shen

Shihong Wen

Shili Lin

Wenjie Wang

A screen projection display method and apparatus, a mobile terminal, a storage medium, and a program product. The method comprises: when the interface content of a first application program is displayed on a screen projection display device, receiving a first instruction (); in response to the first instruction, displaying an application selection interface, the application selection interface comprising an option of at least one second application program (); receiving a second instruction for a target second application program among the at least one second application (); and in response to the second instruction, projecting the interface content of the target second application program to the screen projection display device for display ().

Screen-projection displaying method, apparatus, mobile terminal, and program product

Provided are a method and a device of controlling display of terminal information, a terminal, and a storage medium. The method includes: obtaining (S) device information of a device that accesses a terminal; determining (S) target recommendation information based on the device information, wherein the target recommendation information is recommendation information corresponding to the device that currently accesses the terminal; and displaying (S) the target recommendation information in a recommendation area in a display area of the terminal, wherein different recommendation areas correspondingly display different target recommendation information.

Method and device of controlling display of terminal information, terminal, and storage medium

The present application discloses a rolling lawn aerator, including a perforating device, where the perforating device is capable of rolling on a lawn so as to perforate and aerate the lawn. The perforating device includes a body assembly and a plurality of perforating assemblies, and the plurality of perforating assemblies are arranged in a circumferential direction of the body assembly; and each of the perforating assemblies includes a perforating pipe, and at least a part of a structure of the perforating pipe exceeds the body assembly in a radial direction of the body assembly.

Rolling lawn aerator

The present disclosure discloses a child safety seat, which is for being installed on a vehicle seat. The child safety seat includes a base having an anchor part connected to the vehicle seat; a seat coupled to the base; a top rod fixed to the rear of the base; a tether assembly including a top tether and a tether fixing portion that are connected with each other, the top tether being connected with the top rod and the tether fixing portion being connected with the vehicle seat; and an alarm device including a switch which can be triggered when the top tether is tightened. The present disclosure also discloses a tether assembly and a support structure. The child safety seat can conveniently prompt that it is not correctly fixed, and can be conveniently fixed and adjusted, thereby improving the safety and riding comfort of the child safety seat.

Tether assembly, and child safety seat and support structure thereof

Safety seat with anchor

The present invention provides a method for recovering valuable metals from waste lithium ion batteries. The method comprises: short-circuit discharging, dismantling, crushing, roasting, and screening on waste lithium ion batteries to obtain active electrode powders; using alkaline solution to wash the active electrode powders, then filtering to remove copper and aluminum; drying the activated electrode powder after alkaline washing treatment, mix the dried activated electrode powder with starch and concentrated sulfuric acid and stir evenly to obtain the mixed material; calcining the mixed material with controlling the atmosphere; taking out the product obtained from calcination and using deionized water to extract the leachate and leaching residue with valence metal ions, and then obtaining the leachate after filtering. The present invention can reduce the concentration of impurity ions in the leaching solution, improve the purity and comprehensive recovery rate of valuable metals, and reduce the recovery cost.

Method for recovering valuable metals from spent lithium ion batteries

The invention discloses a ternary positive electrode material coated with nitride/graphitized carbon nanosheets and preparation method thereof. The ternary positive electrode material coated with nitride/graphitized carbon nanosheets includes a ternary positive electrode material matrix and a coating layer; the coating layer is composed of nitride and graphitized carbon; and the graphitized carbon is formed in situ in the coating process of the nitride. Compared with a physical mixing method, the in-situ generated carbon layer is connected to the material matrix more tightly, and the formed conductive network is denser. So that the rate performance of the material is improved to the maximum extent. The preparation method is simple and easy to realize industrial production. And the obtained ternary positive electrode material coated with nitride/graphitized carbon nanosheets has excellent rate performance and cycling stability.

Ternary positive electrode material coated with nitride/graphitized carbon nanosheets and preparation method thereof

Earphone

The present invention provides a method of preparing an MOF-coated monocrystal ternary positive electrode material. Firstly, a solution A of nickel, cobalt and manganese metal salts, an ammonia complexing agent solution and a caustic soda liquid are added to a reactor for reaction to obtain a precursor core; then, an organic carboxylate is dissolved in an amount of an organic solvent to obtain a solution B; the solution B and a manganese metal salt solution with a given concentration are added to the reactor and aged to obtain an MOF-coated core-shell structure precursor; the core-shell structure precursor is pre-sintered at a low temperature to obtain a nickel-cobalt-manganese oxide with monocrystal structure; the nickel-cobalt-manganese oxide with monocrystal structure is uniformly mixed with LiOH&#xb7;HO in a mortar and then calcined at a high temperature to obtain an MOF-coated monocrystal ternary positive electrode material.

Method of preparing MOF-coated monocrystal ternary positive electrode material

Provided are a battery-level Ni&#x2014;Co&#x2014;Mn mixed solution and a preparation method for a battery-level Mn solution, the steps thereof comprising: acid dissolution (S), alkalization to remove impurities (S), synchronous precipitation of calcium, magnesium, and lithium (S), deep ageing to remove impurities (S), synergistic extraction (S), and refining extraction (S). The steps of deep ageing to remove impurities (S) and synergistic extraction (S) comprise: performing deep ageing on a filtrate obtained from the step of synchronous precipitation of calcium, magnesium, and lithium (S), and after performing filtration to remove impurities, obtaining an aged filtrate; using P204 to extract the aged filtrate and obtain a loaded organic phase, and subjecting the loaded organic phase to staged back-extraction to obtain the battery-level Ni&#x2014;Co&#x2014;Mn mixed solution and a Mn-containing solution. By means of the cooperation between the multiple process steps of synchronous precipitation of calcium, magnesium, and lithium (S), deep ageing to remove impurities (S), and synergistic extraction (S), the impurity content of the obtained battery-level Ni&#x2014;Co&#x2014;Mn mixed solution is significantly lowered, and the battery-level Ni&#x2014;Co&#x2014;Mn mixed solution can be directly used to prepare a lithium battery ternary precursor material. At the same time, the battery-level Mn solution can also be obtained, which is favorable for large-scale applications of the process and increasing economic benefits.

Battery-level Ni&#x2014;Co&#x2014;Mn mixed solution and preparation method for battery-level Mn solution

Mobile phone

Fishing weight

Bluetooth earphone case

A structural design method of a product is provided. The method includes obtaining a preliminary design of a subsurface mesh structure by filling a body model of the product with spherical cells at preset positions of the body model and performing an finite element analysis and optimization; and optimizing, through a design method for optimizing functions, filling features of the spherical cells based on a simulation analysis so that the structure of the product satisfies a preset target.

Structural design method of product

Growing community of inventors

Guangdong, China

Kun Zhang