[WU, Kai 吴凯, WU, Kai 吴凯, WANG, Zhongchao 汪忠超, WU, Kai 吴凯, WANG, Zhongchao 汪忠超, LU, Yuewen 卢岳文, WU, Kai 吴凯, WANG, Zhongchao 汪忠超, LU, Yuewen 卢岳文, XU, Haoyou 徐浩友, WU, Kai 吴凯, WANG, Zhongchao 汪忠超, LU, Yuewen 卢岳文, XU, Haoyou 徐浩友, ZHANG, Nan 张楠, WU, Kai 吴凯, WANG, Zhongchao 汪忠超, LU, Yuewen 卢岳文, XU, Haoyou 徐浩友, ZHANG, Nan 张楠, AN, Jia 安佳] Room 112, Area D (Desheng Park) 中国北京市西城区新街口外大街28号D座112室（德胜园区）, Beijing 100088No.28 Xinjiekouwai Street, xicheng DistrictBeijing 100088;2/F and Room 301-306, 3/F, Tower B, Building 2, Yard 6 中国北京市朝阳区酒仙桥路6号院2号楼B座2层、3层301-306室, Beijing 100015Jiuxianqiao Road, Chaoyang DistrictBeijing 100015 A search method for a customized result provided for a content provider, a client and a system. The method comprises: acquiring a specific search word input by a user in a search bar (S110); sending a search request containing the specific search word to a search server (S120); receiving a search result page which is returned by the search server and in which a customized application interaction content corresponding to the search word is embedded, wherein the customized application interaction content in the search result page contains one or more function interfaces related to the customized application interaction content, and customized logic corresponding to the function interface(s) (S130); and presenting the search result page (S140). The method can more efficiently access data of a cooperating party, save development costs, reduce communication and joint debugging costs, satisfy user demands and improve the user experience.

[DU, Baojiang 杜保江, DU, Baojiang 杜保江, CHEN, Wei 陈威, DU, Baojiang 杜保江, CHEN, Wei 陈威, ZHANG, Qianqian 张倩倩, DU, Baojiang 杜保江, CHEN, Wei 陈威, ZHANG, Qianqian 张倩倩, WU, Kai 吴凯, DU, Baojiang 杜保江, CHEN, Wei 陈威, ZHANG, Qianqian 张倩倩, WU, Kai 吴凯, ZHENG, Xiangzhen 郑相振] Room 112, Area D (Desheng Park) 中国北京市西城区新街口外大街28号D座112室（德胜园区）, Beijing 100088No.28 Xinjiekouwai Street, xicheng DistrictBeijing 100088;2/F and Room 301-306, 3/F, Tower B, Building 2, Yard 6 中国北京市朝阳区酒仙桥路6号院2号楼B座2层、3层301-306室, Beijing 100015Jiuxianqiao Road, Chaoyang DistrictBeijing 100015 Disclosed are a method and apparatus for implementing unified management of intelligent hardware devices by an APP, and a mobile browser client. The method comprises: recognize recognition information of an intelligent hardware device through a recognition interface provided by an APP on a mobile terminal; establish Bluetooth connection between the mobile terminal and the intelligent hardware device based on the information recognition; the APP acquires hardware control information of the intelligent hardware device through the Bluetooth connection; and provide a display interaction interface on the basis of the hardware control information in the APP. The technical solution provided by the present invention relies on the recognition interface provided by the APP, changes the one-to-one management mode between the APP and the intelligent hardware device in the prior art, and achieves management of a plurality of intelligent hardware devices by one APP, so that the operation process is simplified, and the user experience in management of intelligent hardware devices is more convenient and intuitive.

[WU, Yiyang 吴益扬, YE, Yonghuang 叶永煌, WU, Baozhen 武宝珍, WU, Kai 吴凯] No.2 Xingang Road, Zhangwan Town, Jiaocheng District 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100 Provided is a positive electrode sheet, at least comprising the following substances: a first active material selected from a lithium iron phosphate-based material of formula LiFe1-xMnxPO4, x being 0-0.8, optionally 0-0.5, and more optionally 0-0.25; and a second active material selected from one or more of lithium nickelate, lithium manganate, lithium cobalt oxide, lithium nickel cobalt manganese oxide, lithium nickel cobalt aluminum oxide, lithium-rich manganese base and lithium vanadium phosphate, wherein the amount of the second active material is 10-70%, optionally 10-30%, and more optionally 15-20% on the basis of the total mass of the first active material and the second active material. Further provided are a secondary battery comprising the positive electrode sheet, and a battery module, a battery pack and an electric device related to the secondary battery. Further provided is a method for balancing an internal voltage difference of the secondary battery. Provided is a positive electrode sheet, at least comprising the following substances: a first active material selected from a lithium iron phosphate-based material of formula LiFe1-xMnxPO4, x being 0-0.8, optionally 0-0.5, and more optionally 0-0.25; and a second active material selected from one or more of lithium nickelate, lithium manganate, lithium cobalt oxide, lithium nickel cobalt

[BAI, Wenlong 白文龙, WU, Yiyang 吴益扬, WU, Baozhen 武宝珍, YE, Yonghuang 叶永煌, YOU, Xingyan 游兴艳, WANG, Yuwen 王育文, ZHENG, Wei 郑蔚, WU, Kai 吴凯] No.2 Xingang Road, Zhangwan Town, Jiaocheng District 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100 The present application provides a composite negative electrode active material and a preparation method therefor, a negative electrode sheet comprising the composite negative electrode active material, a secondary battery, and an electrical device. The composite negative electrode active material comprises a negative electrode active material matrix and a conductive polymer layer located on the surface of the negative electrode active material matrix, wherein the cyclic voltammetry curve of the composite negative electrode active material has an oxidation peak in the range of 3.2-3.6 V and a reduction peak in the range of 2.1-2.6 V. The composite negative electrode active material provided by the present application can have low volume expansion, high gram capacity, and high first Coulombic efficiency, such that the secondary battery can have low volume expansion, high energy density, and long cycle life. The present application provides a composite negative electrode active material and a preparation method therefor, a negative electrode sheet comprising the composite negative electrode active material, a secondary battery, and an electrical device. The composite negative electrode active material comprises a negative electrode active material matrix and a conductive polymer layer located on the surface of the negative electrode active material matrix, wherein the cyclic voltammetry curve of the composite negative electrode active material has an oxidation peak in the range of 3.2-3.6 V and a reduction peak in the range of 2.1-2.6 V. The composite negative electrode active material provided by the present application can have low volume expansion, high gram capacity, and high first Coulombic efficiency, such that the secondary battery can have low volume expansion, high energy density, and long cycle life.

[WU, Yiyang 吴益扬, BAI, Wenlong 白文龙, YE, Yonghuang 叶永煌, WU, Baozhen 武宝珍, WU, Kai 吴凯] No.2 Xingang Road, Zhangwan Town, Jiaocheng District 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100 The present application provides a fast-charging negative electrode active material and a preparation method therefor, a negative electrode sheet, a secondary battery, and an electric device. The fast-charging negative electrode active material comprises carbon-based material particles, a coating layer located on at least a part of the surface of each carbon-based material particle, and a ferroelectric material dispersed in the coating layer. The coating layer comprises a conductive carbon material, and at least part of the ferroelectric material protrudes from the surface of the coating layer. The fast-charging negative electrode active material provided by the present application has good dynamic properties, can withstand high-rate charging, and improves the fast charging capability of secondary batteries, without sacrificing the high energy density of secondary batteries.

[BAI, Wenlong 白文龙, WU, Yiyang 吴益扬, YOU, Xingyan 游兴艳, WU, Baozhen 武宝珍, WANG, Yuwen 王育文, ZHENG, Wei 郑蔚, YE, Yonghuang 叶永煌, WU, Kai 吴凯] No.2 Xingang Road, Zhangwan Town, Jiaocheng District 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100 Provided in the present application are a positive electrode material composition, a positive electrode, a rechargeable battery and an electric apparatus. The positive electrode material composition of the present application contains a positive electrode active material and dielectric material particles, wherein an A-value of each dielectric material particle is 50-200, and A = [ε/(c/a)], ε being the relative dielectric constant of the dielectric material particle, c being the length of a c-axis of a unit cell of the dielectric material particle, and a being the length of an a-axis of the unit cell of the dielectric material particle.

[WU, Kai 吴凯, LI, Xiang 李想, CUI, Lu 崔璐, WU, Miangao 吴绵高, WU, Guangdang 吴光当, DING, Guangzhou 丁广州] No. 2 Xingang Road, Zhangwan Town, Jiaocheng District 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100 A battery (2) comprises a plurality of battery groups (10) and a plurality of straps (20), wherein the plurality of battery groups (10) are arranged in a first direction, and each battery group (10) comprises a plurality of battery cells (11) which are stacked in a second direction, the second direction intersecting the first direction. At least part of each strap (20) is arranged on side surfaces of at least one battery group (10) in the first direction and are used for restricting the plurality of battery cells (11) in the at least one battery group (10); and at least two straps (20) extend between adjacent battery groups (10) and are used for restricting the adjacent battery groups (10), and the at least two straps (20) do not overlap in the first direction but overlap in a third direction, the third direction being perpendicular to the first direction and the second direction.

[YOU, Xingyan 游兴艳, WU, Yiyang 吴益扬, BAI, Wenlong 白文龙, WU, Baozhen 武宝珍, WANG, Yuwen 王育文, WU, Kai 吴凯] No.2 Xingang Road, Zhangwan Town, Jiaocheng District 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100 The present application provides a secondary battery, a battery module, a battery pack, and an electrical device. The secondary battery comprises a positive electrode plate, a negative electrode plate, a separator, and a ferroelectric layer. The negative electrode plate comprises a negative electrode film layer containing a negative electrode active material, the separator is arranged between the positive electrode plate and the negative electrode plate, and the ferroelectric layer is disposed on at least one surface of the separator and comprises ferroelectric particles. The compaction density of the negative electrode film layer is P g/cm3, the coating weight of the negative electrode film layer is CW g/1540.25mm2, the thickness of the ferroelectric layer is H μm, the volume average particle size Dv50 of the ferroelectric particles is D μm, and the secondary battery satisfies formula (I). The secondary battery of the present application can improve both the fast-charging performance and the cycle performance of secondary batteries.

[BAI, Wenlong 白文龙, WU, Yiyang 吴益扬, YOU, Xingyan 游兴艳, WU, Baozhen 武宝珍, WANG, Yuwen 王育文, ZHENG, Wei 郑蔚, YE, Yonghuang 叶永煌, WU, Kai 吴凯] No.2 Xingang Road, Zhangwan Town, Jiaocheng District 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100Ningde, Fujian 352100 The present application provides a negative electrode plate, a negative electrode plate preparation method, a secondary battery, a battery module, a battery pack, and an electrical device. The negative electrode plate comprises a ceramic material, a carbon-based negative electrode active material, and a binder, wherein the value of the relation ε/(c/a) between a relative dielectric constant ε and lattice parameters a and c of the ceramic material is 78.8-197.9, and the weight ratio of the ceramic material to the carbon-based negative electrode active material is 0.0052-0.115. The negative electrode plate of the present application can increase the rate of lithium ion desolvation, reduce the degree of lithium plating on a negative electrode plate, reduce the thickness of a formed SEI film, and reduce the consumption of active lithium ions, thereby reducing the interface impedance of the negative electrode plate, and improving the cycle life and charging rate of secondary batteries.

[BAI, Wenlong 白文龙, WU, Yiyang 吴益扬, YOU, Xingyan 游兴艳, WU, Baozhen 武宝珍, WANG, Yuwen 王育文, ZHENG, Wei 郑蔚, YE, Yonghuang 叶永煌, WU, Kai 吴凯] NO.2 XINGANG ROAD, ZHANGWAN TOWN, JIAOCHENG DISTRICT 中国福建省宁德市蕉城区漳湾镇新港路2号, Fujian 352100NINGDE CITY, Fujian 352100 Provided in the present application are a separator, a secondary battery, a battery module, a battery pack and an electric device. In particular, provided in the present application is a separator for a secondary battery, the separator including a base film and high-relative-dielectric-constant material particles that are covalently grafted to one or two faces of the base film, wherein the relative dielectric constant of the high-relative-dielectric-constant material particles is 50-150.