Abstract: Electronic device and system.

Abstract: An electronic device is provided, which includes a housing including an inner space and a hole connected with the inner space, a first conductive coil, a first wireless communication circuitry, a first electro-magnetic resonance (EMR) communication control circuitry, a processor operatively connected with the first EMR communication control circuitry and the first wireless communication circuitry, a memory operatively connected with the at least one processor, and a stylus pen which is insertable into the inner space through the hole. The memory includes instructions that, when executed, cause the processor to transmit or receive a signal by using the first EMR communication control circuitry.

Abstract: An electronic device includes a charging circuitry; a communication circuitry; a display; a processor; and a memory configured to store instructions that, when executed by the processor, cause the processor to: receive information regarding a remaining capacity of a rechargeable battery of a stylus related to the electronic device from the stylus by using the communication circuitry; based on it being identified that the remaining capacity of the battery is less than a reference value, display a first indication for guiding that charging of the battery is required by using the display; and, in response to it being identified that the stylus contacts the display while displaying the first indication, provide power for charging the battery by using the charging circuitry to the stylus, and to change the first indication to a second indication for indicating that the battery is being charged by using the display.

Abstract: An electronic device is provided, which includes a housing including an inner space and a hole connected with the inner space, a first conductive coil, a first wireless communication circuitry, a first electro-magnetic resonance (EMR) communication control circuitry, a processor operatively connected with the first EMR communication control circuitry and the first wireless communication circuitry, a memory operatively connected with the at least one processor, and a stylus pen which is insertable into the inner space through the hole. The memory includes instructions that, when executed, cause the processor to transmit or receive a signal by using the first EMR communication control circuitry.

Abstract: An electronic device includes a charging circuitry; a communication circuitry; a display; a processor; and a memory configured to store instructions that, when executed by the processor, cause the processor to: receive information regarding a remaining capacity of a rechargeable battery of a stylus related to the electronic device from the stylus by using the communication circuitry; based on it being identified that the remaining capacity of the battery is less than a reference value, display a first indication for guiding that charging of the battery is required by using the display; and, in response to it being identified that the stylus contacts the display while displaying the first indication, provide power for charging the battery by using the charging circuitry to the stylus, and to change the first indication to a second indication for indicating that the battery is being charged by using the display.

Abstract: Electronic device and system.

Abstract: Disclosed herein is a high-power, large-capacity battery module including a plurality of battery cells or unit modules connected in series to each other such that the battery cells or the unit modules are stacked while being in tight contact with each other or being adjacent to each other, wherein the battery module is fixed such that the stacked state of the battery cells or the unit modules is maintained even when the volume of the battery cells or the unit modules changes at the time of charging and discharging the battery cells or the unit modules, and a portion of an electrode terminal connection region between the battery cells or between the unit modules is weak with respect to the volume expansion of the battery cells or the unit modules such that an expansion stress caused by the swelling of the battery cells is concentrated on the electrode terminal connection region, whereby the electrode terminal connection region is broken, and therefore, an electrical cut-off occurs at the electrode terminal con

Abstract: Disclosed herein is a high-power, large-capacity battery module including a plurality of battery cells or unit modules connected in series to each other such that the battery cells or the unit modules are stacked while being in tight contact with each other or being adjacent to each other, wherein the battery module is fixed such that the stacked state of the battery cells or the unit modules is maintained even when the volume of the battery cells or the unit modules changes at the time of charging and discharging the battery cells or the unit modules, and a portion of an electrode terminal connection region between the battery cells or between the unit modules is weak with respect to the volume expansion of the battery cells or the unit modules such that an expansion stress caused by the swelling of the battery cells is concentrated on the electrode terminal connection region, whereby the electrode terminal connection region is broken, and therefore, an electrical cut-off occurs at the electrode terminal con

Abstract: Disclosed herein is a high-power, large-capacity battery module including a plurality of battery cells or unit modules connected in series to each other such that the battery cells or the unit modules are stacked while being in tight contact with each other or being adjacent to each other, wherein the battery module is fixed such that the stacked state of the battery cells or the unit modules is maintained even when the volume of the battery cells or the unit modules changes at the time of charging and discharging the battery cells or the unit modules, and a portion of an electrode terminal connection region between the battery cells or between the unit modules is weak with respect to the volume expansion of the battery cells or the unit modules such that an expansion stress caused by the swelling of the battery cells is concentrated on the electrode terminal connection region, whereby the electrode terminal connection region is broken, and therefore, an electrical cut-off occurs at the electrode terminal con

Abstract: Disclosed herein is a high-power, large-capacity battery module including a plurality of battery cells or unit modules connected in series to each other such that the battery cells or the unit modules are stacked while being in tight contact with each other or being adjacent to each other, wherein the battery module is fixed such that the stacked state of the battery cells or the unit modules is maintained even when the volume of the battery cells or the unit modules changes at the time of charging and discharging the battery cells or the unit modules, and a portion of an electrode terminal connection region between the battery cells or between the unit modules is weak with respect to the volume expansion of the battery cells or the unit modules such that an expansion stress caused by the swelling of the battery cells is concentrated on the electrode terminal connection region, whereby the electrode terminal connection region is broken, and therefore, an electrical cut-off occurs at the electrode terminal con

Abstract: Disclosed is a secondary battery comprising a lithium transition metal oxide as a cathode active material, wherein an organic ammonium compound is added to a cathode and/or is coated on a separator. Therefore, the secondary battery according to the present invention can achieve improvements in residual capacity and recovery capacity even after high-temperature storage of the battery, simultaneously with improved power retention of the battery at low and high temperatures.

Abstract: Disclosed is a secondary battery comprising a lithium transition metal oxide as a cathode active material, wherein an organic ammonium compound is added to a cathode and/or is coated on a separator. Therefore, the secondary battery according to the present invention can achieve improvements in residual capacity and recovery capacity even after high-temperature storage of the battery, simultaneously with improved power retention of the battery at low and high temperatures.