Provided are a multi-layer ceramic battery and a method thereof. The method includes: forming a pair of conductive terminal layers to partly cover one side and the other side of a battery body; forming an outer insulating coating layer to cover the surface of the battery body and each surface of the pair of conductive terminal layers; forming a pair of insulating coating windows by polishing the outer insulating coating layer to expose the surfaces of the conductive terminal layers formed at the ends of the one side and the other side of the battery body; forming a pair of inner plating layers to connect to the surfaces of the conductive terminal layers exposed through the insulating coating windows and partly cover one side and the other side of the outer insulating coating layer; and forming a pair of outer plating layers to cover the inner plating layers.

Provided are a multi-layer ceramic battery and a method thereof. The method includes: forming a pair of conductive terminal layers to partly cover one side and the other side of a battery body; forming an outer insulating coating layer to cover the surface of the battery body and each surface of the pair of conductive terminal layers; forming a pair of insulating coating windows by polishing the outer insulating coating layer to expose the surfaces of the conductive terminal layers formed at the ends of the one side and the other side of the battery body; forming a pair of inner plating layers to connect to the surfaces of the conductive terminal layers exposed through the insulating coating windows and partly cover one side and the other side of the outer insulating coating layer; and forming a pair of outer plating layers to cover the inner plating layers.

To provide a surface-treated steel sheet for battery containers excellent in workability while maintaining battery characteristics and liquid leakage resistance, and a manufacturing method thereof. A surface-treated steel sheet for battery containers according to the present invention includes a Ni—Co—Fe-based diffusion alloy plating layer on at least one surface of a base steel sheet, in which the diffusion alloy plating layer is consisted of a Ni—Fe alloy layer and a Ni—Co—Fe alloy layer, which are arranged sequentially from the base steel sheet side, the diffusion alloy plating layer has a Ni coating weight within a range of 3.0 g/m.sup.2 or more and less than 8.74 g/m.sup.2 and a Co coating weight within a range of 0.26 g/m.sup.2 or more and 1.6 g/m.sup.2 or less, with a total of the Ni coating weight and the Co coating weight being less than 9.0 g/m.sup.2, when a surface of the diffusion alloy plating layer is analyzed by an X-ray photoelectron spectroscopy, Co: 19.5 to 60%, Fe: 0.5 to 30%, and Co+Fe: 20 to 70% in atom % are satisfied, and a thickness of the Ni—Fe alloy layer is within a range of 0.3 to 1.3 μm.

To provide a surface-treated steel sheet for battery containers excellent in workability while maintaining battery characteristics and liquid leakage resistance, and a manufacturing method thereof. A surface-treated steel sheet for battery containers according to the present invention includes a Ni—Co—Fe-based diffusion alloy plating layer on at least one surface of a base steel sheet, in which the diffusion alloy plating layer is consisted of a Ni—Fe alloy layer and a Ni—Co—Fe alloy layer, which are arranged sequentially from the base steel sheet side, the diffusion alloy plating layer has a Ni coating weight within a range of 3.0 g/m.sup.2 or more and less than 8.74 g/m.sup.2 and a Co coating weight within a range of 0.26 g/m.sup.2 or more and 1.6 g/m.sup.2 or less, with a total of the Ni coating weight and the Co coating weight being less than 9.0 g/m.sup.2, when a surface of the diffusion alloy plating layer is analyzed by an X-ray photoelectron spectroscopy, Co: 19.5 to 60%, Fe: 0.5 to 30%, and Co+Fe: 20 to 70% in atom % are satisfied, and a thickness of the Ni—Fe alloy layer is within a range of 0.3 to 1.3 μm.

The present disclosure provides batteries that have a reduced risk or no risk of esophageal or gastrointestinal damage in a conductive aqueous environment, such as when accidentally swallowed. The batteries are, in some embodiments, nominally 9V, 3V or 1.5V coin or button cell-type batteries.

A flexible battery and a display device are provided. The flexible battery includes: a plurality of flexible electric core blocks; wherein the plurality of flexible electric core blocks are arranged at intervals along a curling traveling direction, a spacing between adjacent flexible electric core blocks is gradually increased along the curling traveling direction; at least one flexible connecting bridge is arranged between the adjacent flexible electric core blocks, and two ends of the flexible connecting bridge are electrically connected with the adjacent flexible electric core blocks respectively.

A flexible battery and a display device are provided. The flexible battery includes: a plurality of flexible electric core blocks; wherein the plurality of flexible electric core blocks are arranged at intervals along a curling traveling direction, a spacing between adjacent flexible electric core blocks is gradually increased along the curling traveling direction; at least one flexible connecting bridge is arranged between the adjacent flexible electric core blocks, and two ends of the flexible connecting bridge are electrically connected with the adjacent flexible electric core blocks respectively.

The present disclosure provides batteries that have a reduced risk or no risk of esophageal or gastrointestinal damage in a conductive aqueous environment, such as when accidentally swallowed. The batteries are, in some embodiments, nominally 9V, 3V or 1.5V coin or button cell-type batteries.

The present disclosure provides batteries that have a reduced risk or no risk of esophageal or gastrointestinal damage in a conductive aqueous environment, such as when accidentally swallowed. The batteries are, in some embodiments, nominally 9V, 3V or 1.5V coin or button cell-type batteries.

Disclosed is a battery, including a battery cell body and a packaging housing. The packaging housing has an edge banding and a cavity, and the edge banding has a cross section. The edge banding extends upwards along a side surface of the battery cell body, a side surface, close to the battery cell body, of the edge banding is an inner side surface, and a side surface, away from the battery cell body, of the edge banding is an outer side surface. The cross section is provided with a first bonding body, and the first bonding body wraps the cross section, a part of the inner side surface and a part of the outer side surface of the edge banding. A lower edge of the first bonding body on the inner side surface is higher than a lower edge of the first bonding body on the outer side surface.