摘要:
A negative electrode 100 for a lithium secondary battery includes: a current collector 11; a negative-electrode active material body 12 supported by the current collector 11, the negative-electrode active material body 12 having a chemical composition represented as SiOx (0.1≦x≦1.2); and a covering layer 14 formed on the negative-electrode active material body 12, the covering layer 14 having a chemical composition composed of silicon dioxide. The covering layer 12 has a thickness which is greater than 1 nm and no more than 10 nm.
摘要:
A secondary battery comprising: a substrate; a first current collector; a first electrode; a solid electrolyte; a second electrode; and a second current collector; the first current collector being formed on the substrate and serving as a current collector of the first electrode, the first electrode being formed on the first current collector, the solid electrolyte being formed on the first electrode, the second electrode being formed on the solid electrolyte, the second current collector being formed on the second electrode and serving as a current collector of the second electrode, at least one electrode selected from the group consisting of the first electrode and the second electrode containing at least one material selected from the group consisting of an ion conductive material and an electron conductive material.
摘要:
An all solid state battery comprising: (a) a positive electrode current collector layer, (b) a positive electrode active material layer carried on the positive electrode current collector layer, (c) a negative electrode current collector layer, (d) a negative electrode active material layer carried on the negative electrode current collector layer, (e) a solid electrolyte layer interposed between the positive and negative electrode active material layers, and (f) a substrate carrying either of the positive and negative electrode current collector layers, the substrate comprising a metal sheet and a coating layer covering the surface of the metal sheet, the coating layer comprising at least one metal nitride layer.
摘要:
In order to suppress deterioration in battery characteristics of a non-aqueous electrolyte secondary battery at a high temperature and to reduce the amount of gas generated within the battery, as a solute constituting an electrolyte, at least one selected from the group consisting of LiPF6, LiBF4, LiSbF6 and LiAsF6 as well as at least one selected from the group consisting of LiPFa(CbF2b+1)6−a, LiPFc(CdF2d+1SO2)6−c, LiBFe(CfF2f+1)4−e, LiBFg(ChF2h+1SO2)4−g are used.
摘要:
A polymeric solid electrolyte capable of conducting lithium ions which contains silylamide bonds in its polymer skeleton structure, for example, which is obtained by a method comprising subjecting a mixture of lithium silylamide and an organic compound having at least one carbon—carbon double bond to a polymerization in a dry atmosphere; and a lithium secondary cell using the polymeric solid electrolyte. The polymeric solid electrolyte is a “dry” polymeric solid electrolyte which contains counter ions forming lithium salts with lithium ions in its polymer skeleton structure and thus has a single ion electron conducting system wherein lithium ions alone are mobile ions, and hence has excellent conductivity, and further is easy to produce. The polymeric solid electrolyte can therefore be used for producing a novel lithium secondary cell which is an alternative for conventional lithium cells using an organic solvent and is safe and excellent in the capability of corresponding to a variety of shapes and has a high cell voltage.
摘要:
A non-aqueous electrolyte secondary battery which comprises a positive electrode containing a lithium-containing oxide; a negative electrode containing a material capable of absorbing and releasing lithium; and a non-aqueous electrolyte containing a non-aqueous solvent containing at least one non-cyclic ester and which is excellent in storage stability at high temperatures is provided by adding an oxidation resistance improving agent such as triphenylmethane, tetraphehylmethane or the like.
摘要:
A fault-detecting device used in a communication system and capable of judging correctly that a fault exerting an adverse effect with certainty on the transmission/reception operation has occurred in two-wire transmission lines. The fault-detecting device compares magnitudes between levels of information signals inputted through each of the two-wire transmission lines to obtain a resulting value as a main reception signal; compares magnitudes between a level of information signals inputted through each of the two-wire transmission lines and a first or second threshold value to obtain a resulting value as a first or second individual reception signal; determines a mismatch between the main reception signal and the first individual reception signal at a predetermined timing and generating a first mismatch detection signal when the mismatch has occurred; generates a first fault detection signal indicating a fault in the one of the two-wire transmission lines in accordance with a frequency of occurrence of the first mismatch detection signal; determines a mismatch between the main reception signal and the second individual reception signal at the predetermined timing and generating a second mismatch detection signal when the mismatch has occurred; and generates a second fault detection signal indicating a fault in the other one of the two-wire transmission lines in accordance with a frequency of occurrence of the second mismatch detection signal.
摘要:
A communication controller comprises a storage for storing data of a message being received, a determining unit for determining types of the message being received, and a transmission controller for generating interrupt requests for transferring data to a data processing unit at a different timing responsive to determination by the determining unit. That is, if the message being received requires immediate processing, the transmission controller immediately transmits an interrupt request signal to a CPU. The CPU then reads from the storage not only the data which require urgent processing but also all the data stored in the storage, and stores the data in its memory. If the message does not require immediate processing, the transmission controller transmits the interrupt request signal to the CPU when the data stored in the storage have reached a predetermined amount or when a predetermined time has elapsed from a time that the data began to be stored in the storage.
摘要:
A totally-solid lithium secondary battery can be improved in charge and discharge characteristics by adding to the negative electrode a first transition metal chalcogenide or lithium•transition metal chalcogenide which acts as the active material for negative electrode and a second transition metal chalcogenide or lithium•transition metal chalcogenide which inhibits precipitation of metallic lithium.
摘要:
The negative electrode for a lithium secondary battery includes: a current collector 11 having a plurality of bumps 11a on a surface thereof; a first active material layer formed on the current collector 11; and a second active material layer 15 disposed on the first active material layer 12 and including a plurality of active material particles 14. Each of the plurality of active material particles 14 is located on a corresponding bump 11a of the current collector 11, and each of the first active material layer 12 and the plurality of active material particles 14 has a chemical composition represented as SiOx (0