摘要:
The present invention relates to a current collector including a base portion with a flat face, primary projections projecting from the flat face, and secondary projections projecting from the top of the primary projections. The present invention also relates to a current collector including a base portion with a flat face and primary projections projecting from the flat face, wherein the roughening rate of the top of the primary projections is 3 to 20. By using such a current collector, separation of the active material from the current collector can be inhibited when using an active material that has a high capacity but undergoes a large expansion at the time of lithium ion absorption.
摘要:
In a rechargeable non-aqueous electrolyte secondary battery containing positive electrodes, negative electrodes and a non-aqueous solvent, an organic compound having a HOMO energy of −8.5 eV to −11.0 eV and a LUMO energy of −0.135 eV to 3.5 eV which are calculated using PM3 method for Hamiltonian in semiempirical molecular orbital calculation method is added to the non-aqueous solvent. According to the present invention, batteries excellent in safety and long-term reliability and portable information devices are provided.
摘要:
A metal-oxide containing substrate including: an alloy including Fe and Cr and including at least one selected from the group consisting of Ni, Mo, Mn, Al and Si; an oxide of a metal element forming the alloy, wherein a powder X-ray diffraction pattern of the substrate observed by using Cu Kα radiation has at least one peak attributed to the oxide.
摘要:
A communication system in which a reception signal can be accurately obtained from a signal transmitted over two-wire type transmission lines without any significant reduction in the communication speed. The communication system utilizing two-wire type transmission lines for transmitting transmission signals in opposite phases has a plurality of nodes connected to the two-wire type transmission lines, and each of the nodes incorporates terminating resistors acting upon the two-wire type transmission lines. A node which includes a reception circuit for receiving a transmission signal has an AC coupling circuit for extracting AC components in a transmission signal input through the transmission lines, a bias circuit for applying a bias voltage to a signal output from the AC coupling circuit and a clip circuit for clipping the level of a signal output from the bias circuit, which are provided at each of the two-wire type transmission lines.
摘要:
In an electrolyte of a non-aqueous electrolyte secondary battery using a cyclic carboxylic-acid ester exerting high conductivity under a low temperature condition, for suppressing reductive decomposition of the cyclic carboxylic acid ester, a cyclic carbonic acid ester having at least one carbon-carbon unsaturated bond is contained, and for suppressing excessive polymerization reaction of the cyclic carbonic acid ester having at least one carbon-carbon unsaturated bond, a cyclic carbonic acid ester having no carbon-carbon unsaturated bond is further contained.
摘要:
The invention relates to a non-aqueous electrochemical apparatus in which the difference (γl−γse) between the surface tension γl of non-aqueous electrolyte and the surface free energy γse of electrode is not more than 10 dynes/cm.
摘要:
A non-aqueous electrolyte is disclosed, which comprises a non-aqueous solvent and a solute represented by the general formula(1): MBR1R2R3R4, wherein M is an alkali metal atom or an ammonium group and R1 to R4 are each independently electron withdrawing groups or electron withdrawing atoms bound to B where at least one of R1 to R4 is other than a fluorine atom. The solute has a thermal stability substantially equal to that of LiBF4 and an anion portion having a high electronegativity, and easily dissociates into ions. Therefore, a non-aqueous electrolyte containing this solute has a high ionic conductivity and is difficult to cause a generation of a gas or deterioration in characteristics due to the decomposition of the solute, which occurs during use at high temperatures or after storage at high temperatures.
摘要翻译:公开了一种非水电解质,其包含非水溶剂和由通式(1)表示的溶质:MBR 1 R 2 2 R 3 R 4,其中M是碱金属原子或铵基,R 1至R 4各自独立地是吸电子 与B结合的基团或吸电原子,其中R 1至R 4中的至少一个不是氟原子。 溶质的热稳定性基本上等于LiBF 4 S的热稳定性和具有高电负性的阴离子部分,并且容易解离成离子。 因此,含有这种溶质的非水电解质具有高的离子导电性,并且难以引起气体的产生或由于在高温使用期间或在高温下保存后发生的溶质的分解导致的特性劣化 。
摘要:
A receiver circuit that can obtain a reception signal with accuracy in high-speed communications using two-wire transmission lines. The receiver circuit receives information signals in a communication system with two-wire transmission lines for transmitting the information signals in opposite phases to each other. The receiver circuit includes an alternating-current coupling arrangement provided for each of the two-wire transmission lines and for extracting alternating-current components of the information signals inputted through the transmission lines. The receiver circuit also includes a reception signal generating arrangement for obtaining a reception signal corresponding to the information signals in accordance with output signals from each of the alternating-current coupling arrangements. Each of the alternating-current coupling arrangements include two time constant circuits having time constants different from each other and connected in parallel to each other between an input and output thereof.
摘要:
For providing a non-aqueous electrolyte secondary battery having excellent storage characteristics when stored in the charged state under a high temperature condition, the non-aqueous electrolyte or the negative electrode is made to contain divinylethylene carbonate, thereby to form a film derived from divinylethylene carbonate on the surface of the negative electrode material.
摘要:
A salicyl derivative or a salicylidene derivative such as salicyl alcohol or salicylaldehyde is added to a non-aqueous electrolyte to prevent evolution of gas caused by decomposition of the solvent.