Abstract: This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for switching a secondary cell to a primary cell. A user equipment (UE) monitors a first radio condition of the UE for beams of a primary cell and a second radio condition for beams of one or more secondary cells configured for the UE in carrier aggregation. The UE transmits a request to configure a candidate beam of at least one candidate secondary cell as a new primary cell in response to the first radio condition not satisfying a first threshold and the second radio condition for the at least one candidate secondary cell satisfying a second threshold. A base station determines to reconfigure at least one secondary cell as the new primary cell. The base station and the UE perform a handover of the UE to the new primary cell.

Abstract: A display device includes: a light source having a light emitting surface configured to emit light, a light transmitting layer covering the light source and having a light exit surface configured to receive the light emitted from the light emitting surface, a first metasurface formed between the light emitting surface and the light transmitting layer and configured to concentrate the light emitted by the light source in a first direction along the light emitting surface, and a second metasurface formed on the light exit surface and configured to split the light received by the light exit surface in the first direction.

Abstract: A light emitting panel includes a circuit substrate, a plurality of first light emitting components, a plurality of second light emitting components, and a plurality of third light emitting components. The circuit substrate has a plurality of main pixel areas. Each main pixel area is divided into a first subpixel area, a second subpixel area, and a third subpixel area. The first light emitting components, the second light emitting components and the third light emitting components are located in the first subpixel areas, the second subpixel areas and the third subpixel areas respectively. The first light emitting components in two adjacent first subpixel areas are electrically connected in series. The size of each of the first light emitting components is larger than the size of each of the second light emitting components and the third light emitting components.

Abstract: Improved electrolytes for lithium-based cells can include a dual salt combination of lithium hexafluorophosphate and lithium bis(fluorosulfonyl)imide or lithium bis(trifluoro-methanesulfonyl)imide, and a solvent that includes dimethyl carbonate, ethylmethyl carbonate and 5 to 25 volume percent of fluoroethylene carbonate. The improved electrolytes can include additives triethyl phosphate, ethoxy(pentafluoro)cyclotriphosphazene, 1,3-propane sultone, or mixtures thereof, and have small limited amounts of additional cosolvents and/or lithium-free organic additives. The improved electrolytes can be used to prepare lithium-based cells with silicon-based active materials as negative electrodes and nickel rich lithium metal oxides as positive electrodes. The lithium-based cells can achieve high energy, high power, fast charge and long cycle life along with good thermal stability.

Abstract: Provided herein are apparatus, systems, and methods of powering electrical vehicles. The apparatus can include a battery pack disposed in an electric vehicle to power the electric vehicle. The apparatus can include a battery cell arranged in the battery pack. The battery cell can have a housing that defines a cavity within the housing of the battery cell. The battery cell can have an electrolyte having a first side and a second side to transfer lithium ions between the first side and the second side. The electrolyte can be arranged within the cavity. The battery cell can have an anode disposed within the cavity along the first side of the electrolyte. The battery cell can have a composite cathode disposed within the cavity along the second side of the electrolyte. The composite cathode can include a mixture of a NCA material and a NCM material.

Abstract: A three-electrode battery cell precisely measures the anode and cathode during cell operation. The successful interpretation of 3-E cell measurements enables accurate tuning of N/P ratio, fine control of electrode potential during operations, and precise cell capacity prediction during early-stage design. The cost-intensive full cell assembly and time-consuming cell testing can be eliminated, and 3-electrode cell testing and analysis can be used to achieve reliable materials sourcing and state-of-the-art cell design with high accuracy and efficiency. The three-electrode cell can be used to analyze and test battery cell designs during pre-production to determine and optimize the capacity, N/P ratio, and voltage window information for mass production of a particular battery design.

Abstract: A lithium ion rechargeable battery having an electrode and organic electrolyte, wherein the electrolyte includes a phosphor-based material that makes up between 1-20% by weight of the electrolyte. The phosphor-based material added to the electrolyte, in the concentration disclosed herein, does not alter or affect the electrochemical performance of the battery cell, including the capacity of the battery cell. The phosphor-based material is effective, at concentrations in the electrolyte of between 1-20% by weight, of curbing thermal runaway.

Abstract: An electrode for a lithium ion rechargeable battery, wherein the electrode is made from a slurry generated from a compound graphite active material. The compound graphite active material can include graphite particles of different sizes. In some instances, fifty percent or more of the graphite particles making up the active material can have a diameter that is larger than the diameter of the remainder of the graphite materials. The compound graphite active material is applied to a current conductor to form an electrode, and provides for a discharge capacity of significantly higher than lithium ion rechargeable battery having an electrode with a slurry generated from a single sized graphite active material.

Abstract: Systems and methods for manufacturing an electrode is provided. An example method may comprise disposing, by a blade, a slurry onto a surface of a current collector, the slurry including an active material and a solvent, applying, by an electric field source, an electric field between the blade and the current collector, and drying the slurry applied to the surface of the current collector to remove the solvent. The electric field is applied continuously while the slurry is disposed onto the surface of the current blade. The electric field affects the structure of portions of the slurry by causing a Van der Waals interaction and a polarization attraction between the active material and the current collector. The slurry may include of 95% graphite, 3% of a binder, and 5% of reduced graphene oxide. The solvent may include 4 to 1 mixture of water and isopropyl alcohol.

Abstract: External forces are applied to a slurry mixture to achieve a more organized slurry structure in the manufacturing of an electrode. A slurry is generated with paramagnetic materials that exhibit magnetic properties when a magnetic field is applied to the slurry. The slurry with the paramagnetic materials is applied to a current conductor, and then a magnetic field is applied to the slurry, for example during an electrode drying process. By applying a magnetic field, the paramagnetic material orientation can be aligned into a more organized structure. In some instances, the alignment creates a porous structure or gap between pillars that form within the dried slurry material. The dried, porous slurry structure allows for electrolyte wetting and ionic accessibility that is greatly improved over electrodes manufactured using typical techniques.

Abstract: A frame structure includes a holding plate, a first supporting member, a first driving member, a second supporting member and a second driving member. The holding plate is for holding a first panel. The first supporting member is slidably disposed on the holding plate. The first driving member connects the holding plate and the first supporting member and drives the first supporting member to slide relative to the holding plate along a first direction, so as to clamp a first corner of the first panel. The second supporting member is slidably disposed on the holding plate and opposite to the first supporting member. The second driving member connects the holding plate and the second supporting member and drives the second supporting member to slide relative to the holding plate along a second direction, so as to clamp a second corner of the first panel.

Abstract: A rotary mechanism includes a supporter and a bracket. The supporter includes a body, a pivot portion and a support portion. The body whereon the pivot portion is disposed is disposed on a base. The support portion includes a bar and a guiding structure. A low end of the bar is connected to the body, and the guiding structure is disposed on a top end of the bar. The bracket includes a frame, a constraint portion, a pivot slot structure and a contact portion. The constraint portion and the pivot slot structure are disposed on the frame. The contact portion slides along the guiding structure when the bracket rotates relative to the supporter, so that position of the pivot portion moves from an end to the other end of the pivot slot structure structure, and the constraint portion contacts against the body for constraint rotation of the bracket.

Abstract: A rotary mechanism includes a supporter and a bracket. The supporter includes a body, a pivot hole structure and a guiding portion. The pivot hole structure and the guiding portion are disposed on the body. A slot is formed on the pivot hole structure. A top of the guiding portion is a cam structure. The bracket pivots to the supporter. The bracket includes a frame, a constraining portion and a pivoting portion. A bottom of the frame contacts against the guiding portion and slides relative to the cam structure. The constraining portion and the pivoting portion are disposed on the frame. The constraining portion can contact against the body to constrain rotation of the bracket relative to the supporter. The pivoting portion slidably pivots to the slot. The pivoting portion moves along the slot to contact the constraining portion against the body.

Abstract: A frame structure includes a holding plate, a first supporting member, a first driving member, a second supporting member and a second driving member. The holding plate is for holding a first panel. The first supporting member is slidably disposed on the holding plate. The first driving member connects the holding plate and the first supporting member and drives the first supporting member to slide relative to the holding plate along a first direction, so as to clamp a first corner of the first panel. The second supporting member is slidably disposed on the holding plate and opposite to the first supporting member. The second driving member connects the holding plate and the second supporting member and drives the second supporting member to slide relative to the holding plate along a second direction, so as to clamp a second corner of the first panel.

Abstract: A light-emitting device includes a light source, a panel and a light guiding structure. The light guiding structure includes a first light guiding tunnel and a second light guiding tunnel. The first light guiding tunnel includes a first end and a second end. A first opening is formed at the first end and close to the light source. The second light guiding tunnel includes a first end and a second end. The first end of the second light guiding tunnel communicates with the second end of the first light guiding tunnel. A diameter of the second end of the second light guiding tunnel is greater than a diameter of the first end of the second light guiding tunnel. A second opening is formed at the second end of the second light guiding tunnel. A diameter of the second opening is greater than a diameter of the first opening.

Abstract: A rotary mechanism includes a supporter and a bracket. The supporter includes a body, a pivot portion and a support portion. The body whereon the pivot portion is disposed is disposed on a base. The support portion includes a bar and a guiding structure. A low end of the bar is connected to the body, and the guiding structure is disposed on a top end of the bar. The bracket includes a frame, a constraint portion, a pivot slot structure and a contact portion. The constraint portion and the pivot slot structure are disposed on the frame. The contact portion slides along the guiding structure when the bracket rotates relative to the supporter, so that position of the pivot portion moves from an end to the other end of the pivot slot structure structure, and the constraint portion contacts against the body for constraint rotation of the bracket.

Abstract: An electronic device includes a case set and a case set detachment structure. The case set includes a first case with a plurality of fastening parts, and a second case with a plurality of fastening corresponding parts. The case set detachment structure includes a connecting board, a detachment rod, and an oblique stand. The connecting board is located on the first case and includes a moving part. The detachment rod includes a rod part, a moving corresponding part, and an oblique plate. The moving corresponding part is located on the rod part and is movably connected to the moving part. The oblique plate is connected to the rod part, such that the oblique plate and the rod part form an angle. The oblique stand is located on the second case and corresponds to the detachment rod, which includes an oblique surface.

Abstract: A rotary mechanism includes a supporter and a bracket. The supporter includes a body, a pivot hole structure and a guiding portion. The pivot hole structure and the guiding portion are disposed on the body. A slot is formed on the pivot hole structure. A top of the guiding portion is a cam structure. The bracket pivots to the supporter. The bracket includes a frame, a constraining portion and a pivoting portion. A bottom of the frame contacts against the guiding portion and slides relative to the cam structure. The constraining portion and the pivoting portion are disposed on the frame. The constraining portion can contact against the body to constrain rotation of the bracket relative to the supporter. The pivoting portion slidably pivots to the slot. The pivoting portion moves along the slot to contact the constraining portion against the body.

Abstract: A light-emitting device includes a light source, a panel and a light guiding structure. The light guiding structure includes a first light guiding tunnel and a second light guiding tunnel. The first light guiding tunnel includes a first end and a second end. A first opening is formed at the first end and close to the light source. The second light guiding tunnel includes a first end and a second end. The first end of the second light guiding tunnel communicates with the second end of the first light guiding tunnel. A diameter of the second end of the second light guiding tunnel is greater than a diameter of the first end of the second light guiding tunnel. A second opening is formed at the second end of the second light guiding tunnel. A diameter of the second opening is greater than a diameter of the first opening.

Abstract: An electronic device includes a case set and a case set detachment structure. The case set includes a first case with a plurality of fastening parts, and a second case with a plurality of fastening corresponding parts. The case set detachment structure includes a connecting board, a detachment rod, and an oblique stand. The connecting board is located on the first case and includes a moving part. The detachment rod includes a rod part, a moving corresponding part, and an oblique plate. The moving corresponding part is located on the rod part and is movably connected to the moving part. The oblique plate is connected to the rod part, such that the oblique plate and the rod part form an angle. The oblique stand is located on the second case and corresponds to the detachment rod, which includes an oblique surface.