Abstract: The present disclosure relates to a driving system for an on-load tap changer, comprising a vacuum interrupter driving mechanism configured to drive a vacuum interrupter of the on-load tap changer, an energy accumulation mechanism mechanically coupled with the vacuum interrupter driving mechanism, and a flywheel mechanism mechanically coupled with the vacuum interrupter driving mechanism. The flywheel mechanism comprises a flywheel. The energy accumulation mechanism is mechanically coupled with a primary driving unit and is configured to accumulate and release energy for combined motion of the vacuum interrupter driving mechanism and the flywheel mechanism. The vacuum interrupter driving mechanism and the flywheel mechanism are arranged along a main driving axis and the flywheel is concentrically arranged around the main driving axis.

Abstract: The embodiment relates to the field of electrolyte selection in lithium ion cells which may employ Li4Ti5O12 compounds as negative electrode material and LiPF6 as the ionic salt component in the cell electrolyte solution. The embodiment further relates to improvements in lithium ion cell performance as a result of selection of specific formulation of electrolyte for lithium ion cells.

Abstract: The embodiment relates to the field of electrolyte selection in lithium ion cells which may employ Li4Ti5O12 compounds as negative electrode material and LiPF6 as the ionic salt component in the cell electrolyte solution. The embodiment further relates to improvements in lithium ion cell performance as a result of selection of specific formulation of electrolyte for lithium ion cells.

Abstract: The invention relate to methods of preparing lithium ion cells including cells using Li4Ti5O12 as negative electrode material and layered transition metal oxides as positive electrode material or composite positive electrode wherein one of the components is layered transition metal oxide in which the amount of moisture in the cell is reduced such that the characteristics of the cell such as cycle life and cell impedence are improved.

Abstract: The embodiment relates to the field of electrolyte selection in lithium ion cells which may employ Li4Ti5O12 compounds as negative electrode material and LiPF6 as the ionic salt component in the cell electrolyte solution. The embodiment further relates to improvements in lithium ion cell performance as a result of selection of specific formulation of electrolyte for lithium ion cells.

Abstract: The invention relate to methods of preparing lithium ion cells including cells using Li4Ti5O12 as negative electrode material and layered transition metal oxides as positive electrode material or composite positive electrode wherein one of the components is layered transition metal oxide in which the amount of moisture in the cell is reduced such that the characteristics of the cell such as cycle life and cell impedence are improved.

Abstract: The apparatus and methods described herein generally relate to a method for preparing electrodes for lithium ion cells, where both the positive and negative electrodes of the cell include metal oxides processed according to the methods described herein.

Abstract: The methods and devices described herein generally relate to Li4Ti5O12 negative electrodes for lithium ion batteries, methods of preparing the Li4Ti5O12 negative electrodes, and methods of preparing the lithium ion batteries containing such electrodes. The Li4Ti5O12 negative electrode improves the safety performance of the lithium ion battery by preventing or reducing thermal runaway of the lithium ion battery during overcharging.

Abstract: The apparatus and methods described herein generally relate to a method for preparing electrodes for lithium ion cells, where both the positive and negative electrodes of the cell include metal oxides processed according to the methods described herein.

Abstract: The methods and apparatus described herein include, in some variations, a method of powering an electronic device with a lithium ion cell that has a cathode and an anode. The anode is made, at least in part, of nano-crystalline Li4Ti5O12. The lithium ion cell is charged. The lithium ion cell is discharged to power the electronic device. The charging and discharging can take place within a temperature range between 130° C. and 250° C. and voltage range between 1.5 V and 4.2 V, and will results in a safety coefficient greater than 100.

Abstract: A lithium titanate-based electrochemical cell is charged by adding an electrolytic solution to the lithium titanate-based electrochemical cell to form an activated electrochemical cell. Current is provided to the activated electrochemical cell to charge the activated electrochemical cell to a first state of charge for a first period of time. The electrochemical cell is further charged to a second state of charge for a second period of time at a temperature range of 40° C. to 120° C.

Abstract: The present invention is directed to rechargeable current-producing cell comprising:(a) an anode made by an alkali or an earth-alkali metal;(b) a non-aqueous electrolyte solution;(c) a cathode formed by alkali metal salts of chromium dichalcogenides of general formula M'.sub.x M".sub.y CrB.sub.2, wherein M' and M" are metals of group I A of the Periodic Table, B is a chalcogen and x and y have values between zero and one.