Abstract: The present disclosure provides a switch driving circuit, the switch driving circuit includes a discharge circuit, a switch driving port, a voltage generating circuit, and a port conduction circuit. The discharge circuit supplies a voltage to the voltage generating circuit. The voltage generating circuit boosts the voltage to a driving voltage according to signal outputted by a microcontroller. The driving voltage controls an electronic switch module connected to the switch driving port to turn on or turn off. The port conduction circuit controls the switch driving port to make a connection between the voltage generating circuit and the electronic switch module according to a first control signal of the microcontroller. The present disclosure also provides a battery controlling circuit.

Abstract: An electronic device includes a cell, a circuit board, and a cell protection unit. The circuit board is provided in the electronic device and configured to control the electronic device. The circuit board is electrically coupled to the cell, and the cell protection unit is provided on the circuit board. The cell protection unit is integrated with the circuit board, so as to facilitate heat dissipation of the cell, prolong the service life of the cell, speed up the production cycle of the cell, and reduce the production cost of the cell.

Abstract: A method for detecting an internal-short-circuit in a battery. The method includes: obtaining a battery-charging standard parameter (S21); obtaining a voltage V0 of a battery when the battery enters a constant-current charging phase (S22); obtaining a voltage difference ?V generated across a charging time frame ?t during constant-current charging of the battery (S23); obtaining a charge current I when the battery has been charged for the time frame ?t (S24); determining an internal short circuit resistance Ri of the battery based on the battery-charging standard parameter, the voltage Vo, the voltage difference ?V, and the charge current I (S25); and determining, based on the internal short circuit resistance Ri of the battery, whether an internal short circuit exists in the battery (S26).

Abstract: A method of battery capacity estimation including: obtaining a charging current, charging voltage, charging time, and charging voltage interval of a battery being estimated; determining a charging current interval and a charging time interval based on the charging current, the charging voltage, and the charging time, where the charging current interval and the charging time interval correspond to the charging voltage interval; obtaining training features for model training, where the training features include training electrochemical features and training time domain features; determining actual features of the battery being estimated based on the charging voltage interval, the charging current interval, the charging time interval, and the training features, where the actual features include actual electrochemical features and actual time domain features; and estimating, based on the model and the actual features, an actual capacity of the battery being estimated.

Abstract: A method for detecting internal short circuit of a battery, includes: discharging a battery with a first current I1 at a moment t1; calculating a first discharge voltage drop ?V1 of the battery at a moment t1+dt; discharging the battery with a second current I2 at a moment t2, where I1?I2; calculating a second discharge voltage drop ?V2 of the battery at a moment t2+dt; and determining, based on the first current I1, the first discharge voltage drop ?V1, the second current I2, and the second discharge voltage drop ?V2, whether the battery has an internal short circuit. In this application, whether the battery has an internal short circuit can be accurately determined, thereby ensuring safety of an electronic apparatus and a user.

Abstract: A battery protection board includes a first circuit board, a second circuit board, and a tab connecting portion. The first circuit board includes a first substrate, electronic components and an insulation layer. The first substrate includes a first surface and a second surface opposite to each other. The electronic components are disposed on the first surface and the insulation layer covers the electronic components on the first surface. The second circuit board includes a second substrate. The second substrate includes a third surface and a fourth surface opposite to each other. The third surface is connected with the second surface. The tab connecting portion is disposed on the fourth surface. The first substrate has sufficient space reserved for welding the second substrate improving reliability of connection between the first and the second circuit boards, optimizing spatial layout of the battery protection board and ensuring versatility of first circuit board.

Abstract: A battery is provided with a protective body. The protective body is configured to protect an electronic component provided on a circuit board body, so as to reduce probability of the electronic component being subjected to impact, and provide buffering for the electronic component upon impact, thereby reducing the risk of falling-off or damage of the electronic component.

Abstract: A cell including a shell having a main body and a top sealing. The main body includes a bottom surface, a top surface and a side surface connected to bottom surface and the top surface. The top sealing is connected to and bent towards the top surface. An electrode assembly housed in the main body. A tab having one end electrically connected to the electrode assembly and another end extending out of the top sealing. A sealant located between the tab and the top sealing. The sealant includes an exposed portion extending out of the top sealing, the exposed portion is provided with an avoidance area and/or a thinning area for bending of the tab so that the length of the sealant after bending in a length direction of the cell is reduced, thus reducing the packaging space and improving the capacity of the cell.

Abstract: An electronic device includes a cell, a circuit board, and a cell protection unit. The circuit board is provided in the electronic device and configured to control the electronic device. The circuit board is electrically coupled to the cell, and the cell protection unit is provided on the circuit board. The cell protection unit is integrated with the circuit board, so as to facilitate heat dissipation of the cell, prolong the service life of the cell, speed up the production cycle of the cell, and reduce the production cost of the cell.

Abstract: An ink includes the following ingredients by weight: pigment: 5 to 10 wt %; dispersant: 1 to 5 wt %; photoinitiator: 5 to 8 wt %; monofunctional reactive monomer 10 to 15 wt %; multifunctional reactive monomer: 25 to 40 wt %; acrylic resin: 20 to 35 wt %; coupling agent: 2 to 5 wt %; defoamer: 0.1 to 1 wt %; and leveling agent: 0.1 to 1 wt %. The ink according to this application can concurrently meet various performance requirements such as deep curing, high adhesion, high resistance to abrasion and perspiration, and ease of correction.

Abstract: A metal-shell battery includes: a cell including a metal housing and an electrode assembly sealed in the metal housing; a first conductive sheet; and a second conductive sheet. The metal housing includes a first surface. An electrode post is disposed protrusively on the first surface and is insulated from the metal housing. Two electrodes of the electrode assembly are electrically connected to the electrode post and the metal housing respectively. One end of the first conductive sheet is connected to the first surface. One end of the second conductive sheet is connected to the electrode post. A circuit board is connected to the other end of the first conductive sheet and the other end of the second conductive sheet respectively. |S1-S2|?1 mm, S1 and S2 are distances between the first surface, and the one end and the other end of the circuit board respectively.

Abstract: A packaging structure including an accommodating portion and a sealing portion is disclosed. The accommodating portion includes a first wall and a second wall facing each other, a first side wall connected to the first wall and the second wall, and, a second side wall connected to the first wall and the second wall. The second side wall intersects with the first side wall at a first side. The sealing portion includes a first sealing portion connected to the first side wall, a second sealing portion connected to the second side wall, and a third sealing portion connecting the first sealing portion and the second sealing portion. The first sealing portion is folded in a direction away from the second wall. The second sealing portion is folded toward the second wall.

Abstract: A packaging structure including an accommodating portion and a sealing portion is disclosed. The accommodating portion includes a first wall and a second wall facing each other, a first side wall connected to the first wall and the second wall, and, a second side wall connected to the first wall and the second wall. The second side wall intersects with the first side wall at a first side. The sealing portion includes a first sealing portion connected to the first side wall, a second sealing portion connected to the second side wall, and a third sealing portion connecting the first sealing portion and the second sealing portion. The first sealing portion is folded in a direction away from the second wall. The second sealing portion is folded toward the second wall.

Abstract: A method for updating a capacity of a battery for the information of a user includes detecting a state of charge-1 of the battery and an actual capacity-1 of the battery and determining a first state of charge according to the state of charge-1 of the battery. The method further includes determining a second state of charge according to the state of charge-1 of the battery and the actual capacity-1 of the battery and updating an actual capacity-2 of the battery according to the first state of charge and the second state of charge. An electronic device and a non-transitory storage medium are further provided.

Abstract: The present disclosure provides a switch driving circuit, the switch driving circuit includes a discharge circuit, a switch driving port, a voltage generating circuit, and a port conduction circuit. The discharge circuit supplies a voltage to the voltage generating circuit. The voltage generating circuit boosts the voltage to a driving voltage according to signal outputted by a microcontroller. The driving voltage controls an electronic switch module connected to the switch driving port to turn on or turn off. The port conduction circuit controls the switch driving port to make a connection between the voltage generating circuit and the electronic switch module according to a first control signal of the microcontroller. The present disclosure also provides a battery controlling circuit.