Provided is a control device for controlling a storage battery. The control device includes a communication unit and a control unit. The communication unit communicates with the storage battery in a wired or wireless manner. The control unit controls the communication unit to send a control signal, to the storage battery, that causes the storage battery to operate in a first mode or a second mode. The first mode is a mode in which the width of changes over time in power bought or sold by a power control system connected to the storage battery is controlled to stay within a prescribed range. The second mode is mode in which the width of changes over time in power charged to or discharged from the storage battery is controlled to stay within a prescribed range.

Provided is an all-solid-state battery module including: an all-solid-state battery with a voltage in excess of 0 V; a switching element connected in series with the all-solid-state battery; a control unit that controls on/off of the switching element; and a trigger input path connected to the control unit, where a trigger that causes the switching element to transition to an on state is input via the trigger input path.

Provided is an all-solid-state battery module including: an all-solid-state battery with a voltage in excess of 0 V; a switching element connected in series with the all-solid-state battery; a control unit that controls on/off of the switching element; and a trigger input path connected to the control unit, where a trigger that causes the switching element to transition to an on state is input via the trigger input path.

Provided is a system including: a management unit configured to manage a plurality of battery packs connected in parallel, in which the management unit is configured to control the plurality of battery packs to cause the plurality of battery packs to be discharged alternately so that a discharge rate of each of the plurality of battery packs becomes higher than the discharge rate in a case of discharging all of the plurality of battery packs. The plurality of battery packs include a plurality of left-hand side battery packs and a plurality of right-hand side battery packs, and the management unit is configured to manage the plurality of battery packs to cause at least one of the plurality of battery packs in each of the plurality of left-hand side battery packs and the plurality of right-hand side battery packs to be discharged at a time in order.

A method of operating an electric power system, which may include: determining a charge state of a first battery unit and a charge state of a second battery unit; determining a difference between the charge state of the first battery unit and the charge state of the second battery unit; and determining whether to enable discharging simultaneously of both the first battery unit and the second battery unit, or to enable discharging of one of the first and second battery units, based on the difference between the charge state of the first battery unit and the charge state of the second battery unit. At least one of the first and second battery units may be a swappable battery unit. The disclosure further relates to an electric power system and to a computer executable code including instructions for operating an electric power system.

A method for enhancing battery cycle performance. The method is applied in a battery and includes: charging, at a first stage, the battery at a first-stage current until reaching a first-stage voltage; and charging, at a second stage, the battery at a second-stage current until reaching a second-stage voltage. The second-stage voltage is greater than the first-stage voltage, and the second-stage current is less than the first-stage current. The battery includes an electrolytic solution containing an organic solvent. The organic solvent includes a chain carboxylate compound. A weight percent of the chain carboxylate compound in the organic solvent is 10% to 70%. This application further provides an electronic device. The method can enhance high-temperature cycle and storage performance of the battery.

A method for enhancing battery cycle performance. The method is applied in a battery and includes: charging, at a first stage, the battery at a first-stage current until reaching a first-stage voltage; and charging, at a second stage, the battery at a second-stage current until reaching a second-stage voltage. The second-stage voltage is greater than the first-stage voltage, and the second-stage current is less than the first-stage current. The battery includes an electrolytic solution containing an organic solvent. The organic solvent includes a chain carboxylate compound. A weight percent of the chain carboxylate compound in the organic solvent is 10% to 70%. This application further provides an electronic device. The method can enhance high-temperature cycle and storage performance of the battery.

An example of a battery apparatus (10) is provided including: a housing (12) with a connection arrangement (24); a plurality of interoperable battery cartridges (36) removably fittable to the housing (12) to connect with the connection arrangement (24) to form a stack; at least one battery interface arrangement (17) adapted to be removably fitted to the housing (12) to connect with the connection arrangement (24) so as to be in communication with a selection of the plurality of interoperable battery cartridges (26) via the connection arrangement (24). Examples of battery cartridges (36), a system (5) including one or more battery apparatuses (10), and associated example methods are also disclosed.

A charger, comprising: a charger body, an upper part of one side of which is provided with a placement slot, which is hinged to a charging port and a plug-in rod, the upper part of the body is provided with a power indicator light, the bottom end is provided with a socket for adapting the charging cable, and the other side is provided with a lithium battery placement slot, in which a lithium battery placement case is inserted. Corrugated side support sheets are fixedly connected to both sides in the case, the top end of which is connected to a first conductive sheet, the inner bottom end of which is fixedly connected to a second conductive sheet hinged to the third conductive sheet and a spring is fixedly connected therebetween. The charger has a simple structure, the plug-in rod is hinged. It has a built-in battery as a power bank.

A charger, comprising: a charger body, an upper part of one side of which is provided with a placement slot, which is hinged to a charging port and a plug-in rod, the upper part of the body is provided with a power indicator light, the bottom end is provided with a socket for adapting the charging cable, and the other side is provided with a lithium battery placement slot, in which a lithium battery placement case is inserted. Corrugated side support sheets are fixedly connected to both sides in the case, the top end of which is connected to a first conductive sheet, the inner bottom end of which is fixedly connected to a second conductive sheet hinged to the third conductive sheet and a spring is fixedly connected therebetween. The charger has a simple structure, the plug-in rod is hinged. It has a built-in battery as a power bank.