摘要:
According to one embodiment, a secondary battery is provided. The secondary battery includes a negative electrode including a negative electrode current collector, a negative electrode terminal electrically connected to the negative electrode current collector, a joint electrically connecting the negative electrode terminal and the negative electrode current collector, and a water repellent layer covering the joint. The joint is covered with the inner surface of the water repellent layer. A contact angle θ with respect to water on an outer surface of the water repellent layer satisfies 80°≤θ.
摘要:
A sealing assembly, a method of preparing the sealing assembly and a battery are provided. The sealing assembly comprises a metal ring having a mounting hole therein; a ceramic ring having a connecting hole therein and disposed in the mounting hole; and a core column disposed in the connecting hole, wherein at least one of an inner circumferential wall surface of the metal ring, an outer circumferential wall surface of the ceramic ring, an inner circumferential wall surface of the ceramic ring and an outer circumferential wall surface of the core column is configured as an inclined surface, and an inclination angle of the inclined surface relative to a vertical plane is about 1 degree to about 45 degrees.
摘要:
Electrical feedthroughs are presented that are integrated within a wall of a battery housing. In some embodiments, an electrical feedthrough includes a battery housing defining an opening. The electrical feedthrough also includes a collar disposed around the opening and forming a single body with the wall. The electrical feedthrough also includes an electrically-conductive terminal disposed through the collar. The electrical feedthrough additionally includes an electrically-insulating material disposed between the collar and the electrically-conductive terminal and forming a seal therebetween. In some embodiments, the wall has a thickness equal to or less than 1 mm. In some embodiments, the collar protrudes into the battery housing. In other embodiments, the collar protrudes out of the battery housing. In some embodiments, a cross-sectional area of the electrically-conductive terminal is at least 40% of an area bounded by an outer perimeter of the collar. Batteries incorporating the electrical feedthroughs are also presented.
摘要:
One aspect generally relates to a composite, having a layer sequence. The layer sequence includes as layers a first layer, including a first ceramic, and first layer surface, a second layer, including a second ceramic, superimposing the first layer surface. The layer sequence includes a hole, connecting through each layer of the layer sequence; and a cermet. The cermet includes a first part and a second part. The first part is included by the hole. The second part is included between the first layer and the second layer. The cermet is in one piece.
摘要:
Disclosed herein are methods and systems for monitoring and/or regulating energy storage devices. Examples of such monitoring and/or regulating include cell balancing, dynamic impedance control, breach detection and determination of state of charge of energy storage devices.
摘要:
The disclosure provides seals for devices that operate at elevated temperatures and have reactive metal vapors, such as lithium, sodium or magnesium. In some examples, such devices include energy storage devices that may be used within an electrical power grid or as part of a standalone system. The energy storage devices may be charged from an electricity production source for later discharge, such as when there is a demand for electrical energy consumption.
摘要:
Miniature electrodes and electrochemical cells are disclosed. Such electrodes are made from forming an electrode mixture onto a current collector and distal end of a feedthrough pin such that the current collector and distal end of the feedthrough pin is encapsulated. The methods and electrode assemblies disclosed herein allow such electrode assemblies to be made free from the step of directly attaching a formed electrode to a feedthrough pin and thus simplifying assembly and decreasing size.
摘要:
The present disclosure provides a through connecting piece, a power battery and a cap assembly thereof. The through connecting piece comprises: a base having at least an opening; a conductor, the number of the conductor is the same as the number of the opening, the each conductor is provided through the corresponding one opening and a part of the each conductor received in the corresponding one opening has a shape of a racetrack or a rectangle with rounded corners in a top view; and a heat-resistant insulative material, the number of the heat-resistant insulative material is the same as the number of the opening, the each heat-resistant insulative material is filled in the opening between the corresponding one base and the corresponding one conductor. The cap assembly of power battery comprises the above through connecting piece. The power battery comprises the above cap assembly of the power battery.
摘要:
An electrochemical cell comprising a hermetic glass-to-metal seal utilizing a gold coated terminal lead is described. The surface of the terminal lead is directly coated with a layer of gold utilizing an electroplating method. The improved process improves manufacturing efficiencies and reliability of the electrochemical cell.
摘要:
A secondary battery includes an electrode assembly having a first electrode plate, a second electrode plate, and a separator disposed between the first and second electrode plates, a case accommodating the electrode assembly, and a cap assembly coupled to the case, the cap assembly including a cap plate sealing the case and having a short-circuit hole, a short-circuit plate covering the short-circuit hole of the cap plate, the short-circuit plate being spaced apart from an outer surface of the cap plate, a reversible plate adjacent the short-circuit hole, and a sealing member between the cap plate and the short-circuit plate.