Abstract: A lead-acid battery includes a battery chamber containing therein a sulfate-based electrolyte solution, a lead-based negative electrode unit, a lead dioxide-based positive electrode unit, a separator unit spaced apart from one of the lead-based negative electrode unit and the lead dioxide-based positive electrode unit by a gap unit, and a capacitor electrode unit made of a carbon-based fiber material, and configured to be fitted in the gap unit so as to be brought into direct contact with said one of the lead-based negative electrode unit and the lead dioxide-based positive electrode unit.

Abstract: A wet battery package includes a casing defining a receiving space, an electrically insulating liquid received in the receiving space, a battery unit installed in the receiving space, and an electrical power control unit installed in the receiving space and electrically coupled to the batteries. The battery unit includes a plurality of spaced-apart batteries at least a portion of each of which is immersed in the electrically insulating liquid. The electrical power control unit includes two output terminals that are exposed from the casing and that output electricity of the batteries.

Abstract: A terminal having a nut-positioning device. The terminal including a horizontal potion, a vertical portion and a nut-positioning device. The horizontal and vertical potions respectively have a round hole enabling the fastening device to pierce therethrough and the round hole of the horizontal portion is configured to lockingly joint the output end of a lead-acid battery via the fastening device, and the round hole of the vertical portion is configured to lockingly joint an external electrical component via another fastening device. The nut-positioning device has a pair of vertically paralleled supporting arms to vertically extend from both ends of the vertical portion, and a pair of correspondingly biased arms extend from the extreme end of the supporting arms, and another pair of correspondingly biased arms is extended from the lower side end of such supporting arms.

Abstract: The present invention provides a terminal, comprising the contact portion, the insert portion, the engaging portion, the joint portion for connecting the contact portion, insert portion and engaging portion, the stopper for fastening the contact portion, insert portion, or engaging portion on the middle cover of the battery; the contact portion provides external electric appliances with electrical connection through means of contact, the insert portion provides external electric appliances with electrical connection through means of insertion, the engaging portion fastens on the terminal post of the battery so as to transmit electricity from the battery by the joint portion to the contact portion and insert portion through the engaging portion; the present invention further provides a battery having the terminals, mainly utilizing a pair of the terminals as positive and negative electrodes, and the contact portions and the insert portions in a pair of the terminals are disposed on different sides of the batte

Abstract: The invention is to provide a bipolar plate having keys on at least two sides thereof, with such keys have piercing holes thereon; a bipolar plate, a membrane electrode assembly (“MEA”) and a gasket are formed as a unit in the Bipolar Plate Assembly (“BPA”), and provided any of the MEA in a BPA is damaged and needs to be replaced, keys added on other BPAs enable screw rods to fasten sectionally, thus the BPA containing the damaged MEA can be separated, such that the damaged MEA can be dissembled and replaced. The invention further provides a PEM fuel cell, which comprises a plurality of BPAs, with each of such BPA having a number of bipolar plates having keys, MEAs and gaskets. Moreover, the invention further provides a method for replacing MEAs in a PEM fuel cell, whereby damaged MEAs in a PEM fuel cell can be expediently and safely dissembled, repaired or replaced, and the procedure for re-assembling a PEM fuel cell is thus simplified.

Abstract: The present invention provides with a terminal post capable of delaying acidification thereof, mainly referring to the surface of a terminal post being formed with a plurality of grooves or protruding rings, so as to enlarge the contact surface between the posts and resin filled in the interior of the lead-acid battery, for the purpose of avoiding or delaying sulfate solution to infiltrate towards the posts through capillary action, thus delaying the acidification of the terminal posts, as well as protecting the terminal posts and the lead-acid battery terminals, and decreasing the possibility of occurring short circuit by lead-acid batteries.

Abstract: A terminal having nut-positioning device, comprising: a horizontal portion, a vertical portion and a nut-positioning device, wherein the horizontal and vertical portions respectively have a round hole enabling the fastening device to pierce through, whereas the round hole of the horizontal portion is to lockingly joint the output end of a lead-acid battery via the fastening device, and the round hole of the vertical portion is to lockingly joint an external electrical component via another fastening device; the nut-positioning device has a pair of vertically paralleled supporting arms to vertically extend from both ends of the vertical portion, and a pair of correspondently biased arms extends from the extreme end of such supporting arms, and another pair of correspondently biased arms is extended from the lower side end of such supporting arms, thus a containing space is formed by the supporting arms and two pairs of biased arms extended therefrom; such containing space is used for containing the nut of a fa

Abstract: The invention provides a separator in lead acid battery, composed of fiber material and polymers; the polymers provide functions of increasing the mechanical strength for separators, avoiding shortage between positive and negative electrodes, and decreasing the thickness of separators. The invention also provides a manufacturing method of battery separators, whereby polymers are used to coat or absorb to porous separators through means of spraying, immersing, brushing, adhering or other similar means, thus acquiring thinner battery separators with increased mechanical strength.