Abstract: An electronic apparatus (1) according to the present disclosure includes a laminated battery (10) and a hard film (20). The laminated battery (10) includes a battery element (14) and a laminate film (15) having a resin layer and covering the battery element (14). The hard film (20) is bonded to at least a part of a surface of the laminated battery (10). The hard film (20) is made of a material having an elongation percentage smaller than that of the resin layer.

Abstract: An electronic device has a battery cell, a protection circuit substrate, and a heat-conduction tape. A thermistor is mounted on the protection circuit substrate. The heat-conduction tape bonds the battery cell to a chassis, is extended from the battery cell to a thermistor mount part of the protection circuit substrate, and is connected to the thermistor mount part directly or via a heat-conduction material.

Abstract: A temperature detection element is allowed to more accurately detect a temperature of a battery pack. A battery pack includes: a battery cell; a temperature detection element; and a thermally conductive member transferring heat of the battery cell to the temperature detection element.

Abstract: A battery pack and an electronic device are proposed that suppress an increase in size of a battery pack, and decrease damage to a battery element due to an external impact. A battery pack includes: a battery cell including a battery element; at least one holder facing an end of the battery element; and an impact absorbing structure formed at the holder.

Abstract: A temperature detection element is allowed to more accurately detect a temperature of a battery pack. A battery pack includes: a battery cell; a temperature detection element; and a thermally conductive member transferring heat of the battery cell to the temperature detection element.

Abstract: The battery apparatus according to the present invention has the structure in which a lid is engaged with a battery storage to cover a storage portion storing a battery unit via a first fixing means employing a simple structure. Further, the battery storage is formed of the frame and a closing unit engaged via a second fixing means only employing a simple structure. Furthermore, since the battery storage, or the lid, or the closing unit is formed of metal; and the thickness thereof is made thinner, the capacity of the storage portion can be increased to the extent of the reduction in the thickness, whereby the amount of electricity can be increased.

Abstract: The present invention relates to a battery apparatus used as a power source for a mobile phone unit and other electronic equipment, in which in a storage portion formed by overlapping a battery storage and a lid, a battery unit containing a power-generating element is stored. The battery apparatus according to the present invention includes: the battery unit containing a power-generating element, the battery storage having the storage portion in which the battery unit is stored, and the lid that closes the end of an opening of the storage portion of the battery storage, wherein a first fixing element for enabling the lid to be engaged with the battery storage and fixing the lid to the battery storage is provided.