A battery assembly includes a battery that has a top surface surrounded by a circumferential edge; and a removable tab attached to the top surface. The removable tab includes a first tab end and an oppositely disposed second tab end; a gripping region disposed adjacent to the first tab end; and a battery cell attachment region disposed adjacent to the second tab end and attached to the top surface of the battery. The battery cell attachment region has first and second oppositely disposed sidewalls, wherein the second tab end is curved inwardly away from the circumferential edge of the battery such that a portion of the top surface of the battery is exposed between the second tab end and the circumferential edge of the battery

A battery assembly includes a battery that has a top surface surrounded by a circumferential edge; and a removable tab attached to the top surface. The removable tab includes a first tab end and an oppositely disposed second tab end; a gripping region disposed adjacent to the first tab end; and a battery cell attachment region disposed adjacent to the second tab end and attached to the top surface of the battery. The battery cell attachment region has first and second oppositely disposed sidewalls, wherein the second tab end is curved inwardly away from the circumferential edge of the battery such that a portion of the top surface of the battery is exposed between the second tab end and the circumferential edge of the battery

A metal-carbon dioxide battery and a hydrogen generation and carbon dioxide storage system including the same are disclosed. The metal-carbon dioxide battery includes: a first plate with a designated area; a second plate with a designated area and spaced apart from the first plate by a distance in an X-axis direction; a separator between the first and second plates; a frame-shaped spacer disposed between the first plate and the separator with a space between the first plate and the separator; a plurality of anode sheets in the space; a pressing unit in the space between the first plate and the anode sheets and biasing the anode sheets toward the separator; and a cathode between the second plate and the separator.

A battery assembly includes a battery that has a top surface surrounded by a circumferential edge; and a removable tab attached to the top surface. The removable tab includes a first tab end and an oppositely disposed second tab end; a gripping region disposed adjacent to the first tab end; and a battery cell attachment region disposed adjacent to the second tab end and attached to the top surface of the battery. The battery cell attachment region has first and second oppositely disposed sidewalls, wherein at least one of the first and second sidewalls is curved inwardly away from the circumferential edge of the battery such that a portion of the top surface of the battery is exposed between the sidewall and the circumferential edge of the battery.

A battery assembly includes a battery and a removable tab attached to a surface of the battery. The removable tab includes a main tab layer having a first surface and an oppositely disposed second surface, wherein the main tab layer comprises a battery cell attachment region and a gripping region adjacent to the battery cell attachment region. The removable tab also includes a first layer disposed over the first surface of the main tab layer; and a second layer disposed over a portion of the second surface of the main tab layer only at the gripping region. One or both of the first layer and the second layer is a texturized layer having an average surface roughness of about 0.6 microns to about 2 microns, the texturized layer providing an external face to the removable tab.

A metal air fuel cell is provided. The metal air fuel cell includes a plurality of unit bodies arranged in parallel in a battery housing. Each of the plurality of unit bodies includes a housing, a front cover, an alloy plate, a sealing ring, a battery cover, an upper copper electrode, an air electrode, and a back cover. The upper copper electrode, the battery cover and the alloy plate are connected by bolts to form a metal fuel monomer.

The invention discloses a metal air fuel cell, which can replace a single metal fuel conveniently, making the whole product more convenient and more conducive to maintenance in the process of use, so as to increase the service life of the product and enhance the user experience of the product. The metal air fuel cell includes several cell bodies. Each unit body comprises a housing, a front cover, an alloy plate, a sealing ring, a battery cover, an upper copper electrode, an air electrode, a back cover. The front part of a housing is sealed by the bonding of a front cover and an air electrode to form a cavity between a housing and the bonded front cover and an air electrode. The rear part of a housing is sealed by the bonding of a back cover and an air electrode to form a cavity between a housing and the bonded back cover and an air electrode. A sealing ring is placed in a groove i of a battery cover. An upper copper electrode is placed in a groove of a battery cover through a side gap of a battery cover, and an upper copper electrode, a battery cover and an alloy plate are connected by bolts to form a metal fuel monomer. A metal fuel monomer is put into a housing, and is matched with a groove of a battery cover and a boss on a mouth of a housing, and then the sealing of a mouth of a housing is realized by compressing a sealing ring. There is a circular through hole in a lower part of a housing, and three locating holes a are evenly distributed around a through hole. A groove and a convex are respectively arranged on both sides of a through hole. A sealing ring is arranged inside a groove, and a sealing ring is compressed by the bolts through a locating hole after installing all battery monomers, in order to achieve the seal between monomers. A system of the metal air fuel cell is also provided.

A battery assembly includes a battery that has a top surface surrounded by a circumferential edge; and a removable tab attached to the top surface. The removable tab includes a first tab end and an oppositely disposed second tab end; a gripping region disposed adjacent to the first tab end; and a battery cell attachment region disposed adjacent to the second tab end and attached to the top surface of the battery. The battery cell attachment region has first and second oppositely disposed sidewalls, wherein at least one of the first and second sidewalls is curved inwardly away from the circumferential edge of the battery such that a portion of the top surface of the battery is exposed between the sidewall and the circumferential edge of the battery

A battery assembly includes a battery and a removable tab attached to a surface of the battery. The removable tab includes a main tab layer having a first surface and an oppositely disposed second surface, wherein the main tab layer comprises a battery cell attachment region and a gripping region adjacent to the battery cell attachment region. The removable tab also includes a first layer disposed over the first surface of the main tab layer; and a second layer disposed over a portion of the second surface of the main tab layer only at the gripping region. One or both of the first layer and the second layer is a texturized layer having an average surface roughness of about 0.6 microns to about 2 microns, the texturized layer providing an external face to the removable tab.

A metal-air cell has a first housing part and a second housing part that together form a cell housing. The metal-air cell includes a metal based anode and a layer-shaped air cathode and an electrolyte. The first housing part has at least one air passage opening. A layer-shaped air diffusor is disposed between the first housing part and the air cathode. A layer-shaped separator is arranged between the air cathode and the metal based anode. The layer-shaped air diffuser is air-permeable and has a first side facing the air cathode and a second side facing away from the air cathode, wherein the layer-shaped air diffuser has a hydrophobic coating on at least one of the sides.