Abstract: A lithium-ion battery electrode includes a current collector and n electrode plate layers laminated on the current collector, n being an integer greater than or equal to 2. The electrode plate layer contains a pore-forming agent. A content of the pore-forming agent in the electrode plate layers gradually increases along a direction gradually away from the current collector. The pore-forming agent is selected from an electrolyte solution additive which is solid at normal temperature.

Abstract: Disclosed herein are a composite cathode material for a lithium-ion battery, a lithium-ion battery, and a vehicle. A core of the cathode material is a lithium-nickel-cobalt-manganese oxide material. A surface layer of the cathode material is a lithium-nickel-cobalt oxide material doped with an element E. There is a transition layer between the core and the surface layer. The transition layer is a lithium-nickel-cobalt-manganese oxide material doped with the element E. A content of the element E in the transition layer shows a decreasing trend in a direction from the surface layer of the cathode material to the core. A general formula for the composition of the transition layer is Li1+mNi1-x-y-zCoxMnyEzO2. 0?m?0.1, 0.01?x?0.1, 0.01?y?0.1, and 0.01?z?0.1. E is at least one of Al, Zr, Ti, Y, Ba or Sr.

Abstract: Disclosed is a wireless speaker having a structure with the outer cover. The outer cover can be easily detached from the speaker body, facilitating user's mounting external electronic products as desired, for example, various types of bulbs, such as an LED or energy-saving lamp, and a wireless router or a camera. Also disclosed is a wireless speaker system, where the wireless set and the wireless speaker use wireless transmitting and receiving modules, or may use WiFi, Bluetooth or other wireless transmission modes. The wireless set supports a plurality of wireless speakers, and the wireless receiving speaker may be mounted on the ceiling, wall, or hidden place in a kitchen, living room, bedroom, bathroom or even bar, and restaurant; or even mounted on a table or floor lamp, or transportation means such as trains and planes, serving as a video and audio center for households and entertainment places by free combinations.

Abstract: A wireless illuminative speaker system, comprising a wireless transmitter comprising a transmitter body, a wireless transmit module, a main board printed board circuit assembly (PCBA), and a support, and at least one wireless illuminative receiving speaker comprising a speaker body, an illuminating part, a speaker part, and a wireless receiving module. The wireless transmitter operates to obtain audio data from an external electronic device and to transmit the audio data in the form of wireless audio digital signals, the wireless transmit module is disposed in the transmitter body, the main board PCBA operates to control the wireless transmit module, the support operates to mount an audio playing device thereon, the wireless illuminative receiving speaker operates to receive the wireless audio digital signals from the wireless transmitter and to plays the received wireless audio digital signals after digital-to-analog conversion, and the illuminating part is disposed in the speaker body.

Abstract: Disclosed is a wireless speaker having a structure with the outer cover. The outer cover can be easily detached from the speaker body, facilitating user's mounting external electronic products as desired, for example, various types of bulbs, such as an LED or energy-saving lamp, and a wireless router or a camera. Also disclosed is a wireless speaker system, where the wireless set and the wireless speaker use wireless transmitting and receiving modules, or may use WiFi, Bluetooth or other wireless transmission modes. The wireless set supports a plurality of wireless speakers, and the wireless receiving speaker may be mounted on the ceiling, wall, or hidden place in a kitchen, living room, bedroom, bathroom or even bar, and restaurant; or even mounted on a table or floor lamp, or transportation means such as trains and planes, serving as a video and audio center for households and entertainment places by free combinations.

Abstract: A wireless illuminative speaker system, comprising a wireless transmitter comprising a transmitter body, a wireless transmit module, a main board printed board circuit assembly (PCBA), and a support, and at least one wireless illuminative receiving speaker comprising a speaker body, an illuminating part, a speaker part, and a wireless receiving module. The wireless transmitter operates to obtain audio data from an external electronic device and to transmit the audio data in the form of wireless audio digital signals, the wireless transmit module is disposed in the transmitter body, the main board PCBA operates to control the wireless transmit module, the support operates to mount an audio playing device thereon, the wireless illuminative receiving speaker operates to receive the wireless audio digital signals from the wireless transmitter and to plays the received wireless audio digital signals after digital-to-analog conversion, and the illuminating part is disposed in the speaker body.