12results about "Inorganic electrolytes" patented technology

The present invention provides a non-aqueous electrolyte, and a secondary battery, a battery module, a battery pack, and a power consumption device each containing the non-aqueous electrolyte. The non-aqueous electrolyte includes an electrolyte salt, a non-aqueous solvent, and a first additive, the electrolyte salt includes lithium bisfluorosulfonylimide, lithium tetrafluoroborate, and lithium difluorooxalate borate, the first additive includes fluoroethylene carbonate, and the lithium bisfluorosulfonylimide content A1, the lithium tetrafluoroborate content A2, the lithium difluorooxalate borate content A3, and the fluoroethylene carbonate content B1 based on the total mass of the non-aqueous electrolyte satisfy the following: A1 is 9% to 15%, A1 / A2 is 30 to 1500, A1 / B1 is 3.6 to 15, and A2 / A3 is 0.02 to 30. The secondary battery containing the non-aqueous electrolyte can simultaneously achieve excellent cycle performance, storage performance, safety performance, and dynamic performance.

Provided are a conformable polymer coated lithium metal electrode, a solid electrolyte, and an inorganic molten salt electrolyte for a rechargeable lithium metal battery. Systems and methods are also provided for controlling the electroplating of lithium metal onto negative electrodes to allow for more rapid recharging of lithium metal batteries while minimizing dendrite formation.

This lithium ion secondary battery (1) has a negative electrode (12), a positive electrode (10), an aqueous electrolyte (16) containing a lithium salt, and a separation layer (14) arranged between the negative electrode (12) and the positive electrode (10). The aqueous electrolyte (16) is in contact with the positive electrode (10), and the separation layer (14) includes a non-aqueous solid electrolyte A in which a matrix polymer, the lithium salt and a hydrophobic ionic liquid are compounded.

Systems and methods drawn to an electrochemical cell comprising a low temperature ionic liquid comprising positive ions and negative ions and a performance enhancing additive added to the low temperature ionic liquid. The additive dissolves in the ionic liquid to form cations, which are coordinated with one or more negative ions forming ion complexes. The electrochemical cell also includes an air electrode configured to absorb and reduce oxygen. The ion complexes improve oxygen reduction thermodynamics and / or kinetics relative to the ionic liquid without the additive.

An electrolyte for a lithium secondary battery according to exemplary embodiments may include a lithium salt; an organic solvent; and an additive including a lactone compound having an epoxy group. Accordingly, it is possible to provide an electrolyte for a lithium secondary battery having excellent high-temperature characteristics and a lithium secondary battery including the electrolyte.

The invention relates to a non-aqueous electrolyte, and a secondary battery, a battery module, a battery pack and an electric device comprising the same. The non-aqueous electrolyte comprises an electrolyte salt, a non-aqueous solvent and a first additive, the electrolyte salt comprises lithium bis (fluorosulfonyl) imide, lithium tetrafluoroborate and lithium bis (fluorooxalato) borate, the first additive comprises fluoroethylene carbonate, and based on the total mass of the non-aqueous electrolyte, the non-aqueous solvent comprises lithium bis (fluorosulfonyl) imide, lithium tetrafluoroborate and lithium bis (fluorooxalato) borate. The content A1 of the lithium bis (fluorosulfonyl) imide, the content A2 of the lithium tetrafluoroborate, the content A3 of the lithium bis (fluorooxalato) borate and the content B1 of the fluoroethylene carbonate meet the following conditions: A1 is 9%-15%, A3 is 0.01%-0.45%, A1 / A2 is 30-1500, A1 / B1 is 3.6-15, and A2 / A3 is 0.02-30. The secondary battery containing the non-aqueous electrolyte has good cycle performance, storage performance, safety performance and dynamic performance at the same time.

The invention relates to improved formation protocols for NIB hard carbon anodes in superconcentrated ionic liquid electrolytes. In contrast to established methods for carbonate-based solvents, a high current density 2 C formation protocol resulted in the highest specific capacity during subsequent cycling at 1 / 2 C current density, along with the lowest EIS resistance, compared with 1 C and 1 / 10 C formation protocols. Variable cycling conditions (e.g., 1 / 5 C for long term cycling) were not influenced by the high C-rate treatment, demonstrating the necessity of applying high rate formation protocols for conditioning in these electrolytes. XPS and NMR analysis revealed a thinner SEI layer was formed after high C-rate formation, which can facilitate the Na+ charge transfer and diffusion across the electrolyte / electrode boundary.

A non-aqueous electrolyte and a secondary battery, battery module, battery pack, and electrical device comprising the non-aqueous electrolyte are disclosed. The non-aqueous electrolyte comprises an electrolyte salt, a non-aqueous solvent, and a first additive. The electrolyte salt includes lithium difluorosulfonylimide, lithium tetrafluoroborate, and lithium difluorooxalate borate. The first additive includes fluoroethylene carbonate. Based on the total mass of the non-aqueous electrolyte, the contents of lithium difluorosulfonylimide (A1), lithium tetrafluoroborate (A2), lithium difluorooxalate borate (A3), and fluoroethylene carbonate (B1) satisfy the following: A1 is 9% to 15%, A1 / A2 is 30 to 1500, A1 / B1 is 3.6 to 15, and A2 / A3 is 0.02 to 30. The secondary battery comprising the non-aqueous electrolyte simultaneously exhibits good cycle performance, storage performance, safety performance, and kinetic performance.

Disclosed are electro-energy or electro-synthetic cells whose architectures allow them to be readily stacked into a cell stack. The cells comprise polymeric cell frames that incorporate within them, functional materials, such as an inter-electrode separator, electrodes, metallic bipolar plates, and the like. For example, an electro-energy or electro- synthetic cell comprises a polymeric cell frame, a first electrode and a second electrode, and an inter-electrode separator positioned between the first electrode and the second electrode. A compressive component is positioned adjacent to the first electrode. The compressive component may be a metallic bipolar plate compressive component and / or a metallic porous transport layer compressive component. In one example the polymeric cell frame is sealed to the metallic bipolar plate by a polymer-to-metal join. In another example at least one polymeric structural locating component locates the metallic bipolar plate against the polymeric cell frame. A cell stack is disclosed comprising a plurality of the cells.

To provide a secondary battery containing a non-aqueous electrolyte that can simultaneously achieve excellent cycle performance, storage performance, safety performance, and dynamic performance. [Solution] The non-aqueous electrolyte comprises an electrolyte salt, a non-aqueous solvent, and a first additive, wherein the electrolyte salt comprises lithium bisfluorosulfonylimide, lithium tetrafluoroborate, and lithium difluorooxalate borate, and the first additive comprises fluoroethylene carbonate. Based on the total mass of the non-aqueous electrolyte, the content of lithium bisfluorosulfonylimide A1, the content of lithium tetrafluoroborate A2, the content of lithium difluorooxalate borate A3, and the content of fluoroethylene carbonate B1 satisfy the following conditions: A1 is 9% to 15%, A1 / A2 is 30 to 1500, A1 / B1 is 3.6 to 15, and A2 / A3 is 0.02 to 30.