Abstract: The present disclosure provides a battery and a portable electrical device. The battery includes a housing and a battery cell disposed in the housing; the battery cell includes electrodes and tabs, where the electrode includes a current collector and an active material layer, and the current collector includes a coating zone coated and an empty foil zone, and an end of the tab is welded to the empty foil zone by a laser welding process; a surface of the empty foil zone facing away from the tab has a plurality of welding zones arranged at intervals, and each welding zone comprises at least one line-shaped welding mark and a surface of the tab facing away from the empty foil zone has no welding mark. The protrusion of the present disclosure is less likely to pierce a separator between a positive electrode and a negative electrode.

Abstract: An electrically erasable programmable read only memory (EEPROM) includes a substrate, isolation structures, a row of erase gate and a row of floating gates. The isolation structures are defined in the substrate to extend in a first direction. The row of erase gate having a wave shape is disposed across the substrate. The row of floating gates having staggered islands is disposed parallel to the row of erase gate. A method of forming said electrically erasable programmable read only memory (EEPROM) is also provided.

Abstract: An electrode assembly includes at least two electrode plates stacked on each other; the first electrode plate is provided with a first groove, and the first current collector is connected to a first tab in the first groove; the second electrode plate is provided with a first avoidance groove, and the first avoidance groove and the first groove are disposed opposite to each other along a stacking direction of the electrode plates; and the first tab is completely covered by a projection of the first avoidance groove on the first electrode plate. Due to arrangement of an avoidance groove, an increase in a thickness of an electrode assembly caused by a tab may be reduced, so that the thickness of the electrode assembly can be reduced, reducing a volume of the electrode assembly, and further improving an energy density of a battery.

Abstract: The present disclosure provides a button cell and an electronic device. The button cell includes a case, a cell, a conductive member arranged on the case and connected to the case in an insulated manner, and a liquid injection port for injecting an electrolyte solution into an accommodating cavity. A cell is placed in an accommodating cavity of a bottom shell. A first tab is welded to an inner bottom wall of the bottom shell, and then the top cover having the conductive member is connected to the bottom shell in a sealed manner, with a second tab on the cell being electrically connected to the conductive member. Finally, an electrolyte solution is injected into the accommodating cavity. After the electrolyte solution is injected, a sealing member covers the liquid injection port, and the sealing member is connected to the liquid injection port in a sealed manner.

Abstract: Disclosed are an electrode plate and a battery. An electrode plate provided in the present disclosure includes a first current collector and a first functional layer disposed on at least one side of the first current collector, where a plurality of first regions and a plurality of second regions are alternately distributed on a surface of the first functional layer. A content ratio of an element oxygen to an element silicon in the first functional layer within the first region is greater than 4:1. The present disclosure provides the electrode plate and the battery, to at least resolve a problem of low initial efficiency of a lithium-ion battery, and increase battery capacity, thereby improving battery energy density.

Abstract: Disclosed are an electrode plate, a battery cell, and a battery. The electrode plate provided in the present disclosure includes a current collector and an active material layer disposed on at least one surface of the current collector. The active material layer includes active material, the active material includes a silicon-based material, a skeleton layer is provided outside the silicon-based material, and a proportion of a fluorine element gradually increases in a direction from the silicon-based material to the skeleton layer. The electrode plate, the battery cell, and the battery provided in the present disclosure are used to at least solve a technical problem that the battery is prone to volume expansion.

Abstract: Embodiments of the present invention provide a housing assembly of button cell, a button cell and an electronic product. The housing assembly of button cell includes: a housing and a conductive part, the housing having a holding cavity that is capable of holding a cell of the button cell, the cell having a first tab and a second tab, the housing being provided with a through hole, the conductive part being positioned at and blocking the through hole, and the conductive part and the through hole being sealed and insulated; where, the number of the conductive part is one or two, and when the number of the conductive part is two, the housing is provided with two through holes, where the conductive parts correspond to the through holes one by one. It is beneficial to improving sealability of the housing assembly of button cell.

Abstract: Embodiments of the present invention provide a housing assembly of button cell, a button cell and an electronic product. The housing assembly of button cell includes: a housing and a conductive part, the housing having a holding cavity that is capable of holding a cell of the button cell, the cell having a first tab and a second tab, the housing being provided with a through hole, the conductive part being positioned at and blocking the through hole, and the conductive part and the through hole being sealed and insulated; where, the number of the conductive part is one or two, and when the number of the conductive part is two, the housing is provided with two through holes, where the conductive parts correspond to the through holes one by one. It is beneficial to improving sealability of the housing assembly of button cell.

Abstract: An array of programmable memory includes a first floating gate and a second floating gate disposed on a substrate along a first direction, two spacers disposed between and parallel to the first floating gate and the second floating gate, a first word line sandwiched by one of the spacers and the adjacent first floating gate, and a second word line sandwiched by the other one of the spacers and the adjacent second floating gate, and two first spacers disposed on the substrate, wherein one of the first spacer is disposed between the first word line and the first floating gate, and another spacer is disposed between the second word line and the second floating gate, wherein each spacer has substantially the same shape as each first spacer.

Abstract: The present application provides an electrode piece and a battery, wherein the electrode piece provided by the present application includes a first current collector and a first functional layer arranged on at least one surface of the first current collector, the first functional layer includes active material particles, and the surface of the first functional layer is provided with a plurality of first regions and a plurality of second regions distributed alternately with the first regions; an inorganic salt layer is arranged outside part of the active material particles in the first regions. The electrode piece and battery provided by the present application are used for improving initial efficiency and solving the problem of serious expansion of the battery.

Abstract: Embodiments of the present invention provide a housing assembly of button cell, a button cell and an electronic product. The housing assembly of button cell includes: a housing and a conductive part, the housing having a holding cavity that is capable of holding a cell of the button cell, the cell having a first tab and a second tab, the housing being provided with a through hole, the conductive part being positioned at and blocking the through hole, and the conductive part and the through hole being sealed and insulated; where, the number of the conductive part is one or two, and when the number of the conductive part is two, the housing is provided with two through holes, where the conductive parts correspond to the through holes one by one. It is beneficial to improving sealability of the housing assembly of button cell.

Abstract: The present disclosure provides a battery and an electronic device, which relate to the technical field of batteries and are used for solving the technical problem of poor sealing performance of batteries. The battery includes a shell, a cover assembly and a coiled core assembly located inside the shell; the shell is provided with an opening, and the cover assembly sealingly covers the opening; the cover assembly includes a conductive member, a top cover and a sealing member between the conductive member and the top cover; the conductive member electrically contacts the coiled core assembly; the sealing member is provided with a first through hole, the top cover is provided with a second through hole, and a diameter of the first through hole is smaller than that of the second through hole.

Abstract: A method for forming semiconductor structure with wave shaped erase gate, the method including the steps: forming a floating gate having staggered islands on a substrate, forming a erase gate having a wave shape on the substrate at a first side of the floating gate, and forming a word line having the wave shape on the substrate at a second side of the floating gate opposite to the first side.

Abstract: An array of programmable memory includes a first floating gate and a second floating gate disposed on a substrate along a first direction, two spacers disposed between and parallel to the first floating gate and the second floating gate, a first word line sandwiched by one of the spacers and the adjacent first floating gate, and a second word line sandwiched by the other one of the spacers and the adjacent second floating gate, and two first spacers disposed on the substrate, wherein one of the first spacer is disposed between the first word line and the first floating gate, and another spacer is disposed between the second word line and the second floating gate, wherein each spacer has substantially the same shape as each first spacer.

Abstract: A training data processing method and an electronic device are provided. The method includes: obtaining medical history data including at least one first disease suffered by a user; setting a plurality of disease types according to a target disease; setting a time interval; obtaining at least one second disease in the time interval from the medical history data; performing a pre-processing operation on the second disease according to the disease types to obtain processed data; and inputting the processed data to a neural network to train the neural network.

Abstract: A method for analyzing an electrocardiography (ECG) signal is provided. The ECG signal is measured through a sensor. One or more specified waveforms in the ECG signal are detected. Multiple ECG features from each specified waveform are captured. The ECG features are input into multiple candidate models to obtain multiple candidate scores. Each candidate score is compared with a standard value to obtain an ideal score among the candidate scores. One of the candidate models corresponding to the ideal score is selected as a risk prediction model to predict disease risk through the risk prediction model.

Abstract: A battery is provided. A first conductive member is disposed within an accommodating cavity of the battery, and an insulating adhesive layer is disposed between the first conductive member and a bottom cover, and connects the first conductive member and the bottom cover. A through hole is disposed on the bottom cover, and is covered by the first conductive member. An annular side wall is welded with the bottom cover at an edge on a side close to the bottom cover to form a welding mark. There is a first spacing between the welding mark and the insulating adhesive layer, and a width of the first spacing is more than 3 times of a width of the welding mark. A first electrode tab of a battery core is electrically connected with the first conductive member, and a second electrode tab of the battery core is electrically connected with the housing.

Abstract: The present disclosure provides a battery and an electronic device, which relate to the technical field of batteries and are used for solving the technical problem of poor sealing performance of batteries. The battery includes a shell, a cover assembly and a coiled core assembly located inside the shell; the shell is provided with an opening, and the cover assembly sealingly covers the opening; the cover assembly includes a conductive member, a top cover and a sealing member between the conductive member and the top cover; the conductive member electrically contacts the coiled core assembly; the sealing member is provided with a first through hole, the top cover is provided with a second through hole, and a diameter of the first through hole is smaller than that of the second through hole.

Abstract: The present disclosure provides a battery, a manufacturing method thereof and an electronic product. The battery cell includes electrodes and tabs, where each of the electrodes includes a current collector and an active material layer, and the current collector includes a coating zone coated with the active material layer and an empty foil zone, and an end of a tab overlaps the empty foil zone and the tab and the empty foil zone are connected by laser welding; the side of the empty foil zone facing away from the tab has a plurality of dot-shaped welding marks arranged at intervals, and the dot-shaped welding marks include a concave part and an annular convex part surrounding the concave part. The contact area between the annular convex part and the separator between the positive electrode and the negative electrode is large, and the separator is less likely to be pierced.