Abstract: Provided are a battery, an electrical apparatus, and a method and an apparatus for making a battery. The battery comprises: a battery cell; a first component, wherein a first surface of the first component is connected to at least one of the battery cells through an adhesion member, the adhesion member comprises a first adhesion structure and a second adhesion structure, the first adhesion structure is located at the periphery of the second adhesion structure, and the first adhesion structure has an elongation at break greater than that of the second adhesion structure. The battery, the electrical apparatus, and the method and the apparatus for making the battery according to the embodiments of the present application can enhance the safety of the battery.

Abstract: A pressure relief apparatus includes a pressure relief portion provided with a first surface and a second surface arranged opposite to each other in a thickness direction of the pressure relief portion, and at least one stage of depressed groove and an indented groove. The at least one stage of depressed groove and the indented groove are formed in the pressure relief portion in sequence in a direction from the first surface to the second surface. A groove bottom wall of the stage of depressed groove farthest away from the first surface among the at least one stage of depressed groove is provided with an opening area. The indented groove is formed along an edge of the opening area. The opening area is configured to be openable with the stage of indented groove farthest away from the first surface as a boundary.

Abstract: The present application provides a battery cell, including a cover plate, a housing, and a gas-permeable film. The housing has an opening, and the cover plate covers the opening of the housing. The cover plate and/or housing have/has at least one through hole, and the inside and the outside of the battery cell are in communication with each other via the through hole; and the gas-permeable film is connected to the inside of the cover plate and/or housing and covers the at least one through hole. According to the battery cell of the present application, gas inside a battery can be discharged to prevent the gas from accumulating inside the housing, thereby improving performance of an electrode assembly, prolonging service life of a secondary battery, and ensuring safety performance of the battery cell.

Abstract: A battery cell includes an electrode assembly, a housing configured to accommodate the electrode assembly and having an opening, an end cover configured to close the opening of the housing, and a current collecting member configured to electrically couple the electrode assembly to the end cover. The current collecting member is at least partly located between the electrode assembly and the end cover and abuts against the electrode assembly. The current collecting member has a hole. The electrode assembly is partly accommodated in the hole and contact a hole wall of the hole.

Abstract: A battery cell, a manufacturing method, a manufacturing system, a battery and an electrical device are provided. In some embodiments, the battery cell of includes an electrode component; a casing for accommodating the electrode component and having an opening; an end cap for sealing the opening of the casing; a current collector member for electrically connecting the electrode component and the end cap, the current collector member including a base portion and an elastic portion connected to the base portion. The elastic portion abuts against the electrode component, so the elastic portion is not required to be welded to the electrode component, thus reducing metal particles to lower the risk of short circuit. The elastic portion is able to deform when squeezed by the electrode component and release the pressure therebetween by deformation, reducing the risk of crushing the electrode component due to excessive pressure.

Abstract: Embodiments provide a battery cell, a battery, an electric apparatus, and a manufacturing method and system of battery cell. In some embodiments, the battery cell includes a housing, an electrode assembly, and an end cover assembly. The housing provides an opening. The electrode assembly is disposed in the housing. The electrode assembly includes a body portion, a tab, and an isolation portion. The tab extends from an end of the body portion to the opening. The isolation portion is disposed on a periphery of the tab. The end cover assembly is configured to cover the opening. The end cover assembly includes an end cover and a first insulator. The end cover is configured to cover the opening and is connected to the housing. The first insulator is disposed on a side of the end cover proximate to an inside of the housing. The first insulator has a concave portion.

Abstract: An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a battery cell manufacturing method and device, which belong to the field of battery technologies. The battery cell includes an adapting member, the adapting member includes a first connection portion for connecting an electrode terminal and a second connection portion for connecting an electrode assembly, the first connection portion and the second connection portion are dividedly set and connected to each other, and the first connection portion is in a multilayer structure and includes multiple layers of conductive sheets provided in a stacking manner, the second connection portion is in a single-layer structure, and a minimum thickness of the first connection portion is greater than a maximum thickness of the second connection portion.

Abstract: In an aspect, a method for additive manufacture of a three-dimensional object based on a computational model comprises steps of: grayscale photohardening a precursor material to form a portion of the object; and applying a hardened meniscus coating at a feature of the object; wherein the three-dimensional object is formed via at least the combination of the steps of gray scale photohardening and applying the meniscus coating. In some embodiments, the grayscale photohardening step is a grayscale photopolymerization step. In some embodiments, the applying a hardened meniscus coating step is a meniscus equilibrium post-curing step.

Abstract: The present disclosure discloses a concentration and temperature measurement method for the magnetic nanoparticles based on paramagnetic shift, which measures magnetic nanoparticle concentration and temperature by utilizing a nuclear magnetic resonance device to measure chemical shifts of a liquid sample containing the paramagnetic particles, thereby efficiently achieving high-accuracy concentration and temperature measurement. Paramagnetic magnetic nanoparticles are added to the nuclear paramagnetic resonance sample reagent, and paramagnetic shifts of the sample are obtained by nuclear magnetic resonance.

Abstract: The present disclosure provides systems and methods for the determining a rate of change of one or more analyte concentrations in a target using non invasive non contact imaging techniques such as OCT. Generally, OCT data is acquired and optical information is extracted from OCT scans to quantitatively determine a flow rate of fluid in the target; angiography is also performed using one or more fast scanning methods to determine a concentration of one or more analytes. Both calculations can provide a means to determine a change in rate of an analyte over time. Example methods and systems of the disclosure may be used in assessing metabolism of a tissue, where oxygen is the analyte detected, or other functional states, and be generally used for the diagnosis, monitoring and treatment of disease.

Abstract: Systems and methods to measure blood flow using optical coherence tomography are disclosed. An example method includes: performing scanning of a target with beam(s) of incident low coherence radiation, wherein the low coherence radiation is selected from one or more regions of the electromagnetic spectrum based on the target selected; acquiring spectroscopic information from scanning signals generated by the interaction of the incident low coherence radiation and the target; generating image signal data for the target from the scanning signals; processing the image signal data by selecting electro-magnetic property(-ies) related to the modulation of the low coherence radiation by variation of relative permittivity and conductivity of the target; performing a multivariate comparison of the selected electro-magnetic properties related to the modulation of the low coherence radiation by variation of relative permittivity and conductivity of the target; and quantifying motion property(-ies) of the target.

Abstract: Systems and methods to generate spatially coherent electromagnetic radiation are disclosed. An example method includes receiving two or more incident wavelengths of electromagnetic radiation; applying the two or more incident wavelengths of electromagnetic radiation to an array of features; generating two or more spatially coherent optical resonating modes through the interaction of the one or more incident wavelengths of electromagnetic radiation and the array of features; and coupling the two or more spatially coherent optical resonating modes to two or more spatially coherent propagating wavelengths of electromagnetic radiation, wherein the spatially coherent propagating wavelengths of electromagnetic radiation are identical to the two or more incident wavelengths of electromagnetic radiation.

Abstract: The present disclosure provides systems and methods for the determining a rate of change of one or more analyte concentrations in a target using non invasive non contact imaging techniques such as OCT. Generally, OCT data is acquired and optical information is extracted from OCT scans to quantitatively determine both a flow rate of fluid in the target and a concentration of one or more analytes. Both calculations can provide a means to determine a change in rate of an analyte over time. Example methods and systems of the disclosure may be used in assessing metabolism of a tissue, where oxygen is the analyte detected, or other functional states, and be generally used for the diagnosis, monitoring and treatment of disease.

Abstract: The present disclosure provides systems and methods for objective focal length free measurements of fluid flow using OCT. In certain disclosed examples, fOCT data is acquired and optical information is extracted from fOCT scans to quantitatively determine a flow rate of fluid in the target. Determinations of flow rate can enable determination of a change in rate of an analyte over time. The current methods and systems of the disclosure can be used in assessing metabolism of a tissue, where oxygen is the analyte detected, or other functional states, and, more generally, be used for the diagnosis, monitoring and treatment of disease.

Abstract: The present disclosure provides systems and methods for the determining a rate of change of one or more analyte concentrations in a target using non invasive non contact imaging techniques such as OCT. Generally, OCT data is acquired and optical information is extracted from OCT scans to quantitatively determine both a flow rate of fluid in the target and a concentration of one or more analytes. Both calculations can provide a means to determine a change in rate of an analyte over time. Example methods and systems of the disclosure may be used in assessing metabolism of a tissue, where oxygen is the analyte detected, or other functional states, and be generally used for the diagnosis, monitoring and treatment of disease.

Abstract: Provided is a noninvasive measuring method for rapid temperature variation under a DC excitation magnetic field, comprising: (1) positioning ferromagnetic particles at a measured object; (2) applying a DC magnetic field to area of the ferromagnetic particles enabling the ferromagnetic particles to reach saturation magnetization state; (3) obtaining steady temperature T1 of the measured object at room temperature, and calculating initial spontaneous magnetization M1, of the ferromagnetic particles according to the steady temperature T1; (4) detecting amplitude A of a magnetization variation signal of the ferromagnetic particles after temperature of the measured object varies, and calculating temperature T2 after change according to the amplitude A of the magnetization variation signal; and (5) calculating temperature variation ?T=T2-T1 according to the temperature T2 after change and the steady temperature T1.

Abstract: The present disclosure relates to methods and systems for magnetic nanoparticle temperature imaging. Particularly, the present methods involve applying different combinations of magnetic fields to magnetic nanoparticles placed in a one-dimensional space, collecting AC magnetization signals of the magnetic nanoparticles, and analyzing the collected signals to obtain in vivo temperature information of the one-dimensional space. Different exciting magnetic fields are applied to the magnetic nanoparticles, so that one-dimensional temperature imaging is transformed into single-point temperature measurement of each minizone, and one-dimensional temperature imaging can be precisely and quickly achieved without knowing the concentration distribution of the magnetic nanoparticles.

Abstract: The present disclosure provides systems and methods for the determining a rate of change of one or more analyte concentrations in a target using non invasive non contact imaging techniques such as OCT. Generally, OCT data is acquired and optical information is extracted from OCT scans to quantitatively determine a flow rate of fluid in the target; angiography is also performed using one or more fast scanning methods to determine a concentration of one or more analytes. Both calculations can provide a means to determine a change in rate of an analyte over time. Example methods and systems of the disclosure may be used in assessing metabolism of a tissue, where oxygen is the analyte detected, or other functional states, and be generally used for the diagnosis, monitoring and treatment of disease.

Abstract: The present disclosure provides systems and methods for the determining a rate of change of one or more analyte concentrations in a target using non invasive non contact imaging techniques such as OCT. Generally, OCT data is acquired and optical information is extracted from OCT scans to quantitatively determine both a flow rate of fluid in the target and a concentration of one or more analytes. Both calculations can provide a means to determine a change in rate of an analyte over time. Example methods and systems of the disclosure may be used in assessing metabolism of a tissue, where oxygen is the analyte detected, or other functional states, and be generally used for the diagnosis, monitoring and treatment of disease.

Abstract: The present disclosure provides systems and methods for the determining a rate of change of one or more analyte concentrations in a target using non invasive non contact imaging techniques such as OCT. Generally, OCT data is acquired and optical information is extracted from OCT scans to quantitatively determine both a flow rate of fluid in the target and a concentration of one or more analytes. Both calculations can provide a means to determine a change in rate of an analyte over time. Example methods and systems of the disclosure may be used in assessing metabolism of a tissue, where oxygen is the analyte detected, or other functional states, and be generally used for the diagnosis, monitoring and treatment of disease.