摘要:
An electrode material for an anode of a rechargeable lithium battery, containing a particulate comprising an amorphous M·A·X alloy with a substantially non-stoichiometric ratio composition. In the formula M·A·X, M indicates at least one kind of an element selected from a group consisting of Si, Ge, and Mg, A indicates at least one kind of an element selected from a group consisting of transition metal elements, and X indicates at least one kind of an element selected from a group consisting of Ba, Sr, Ca, La, Ce, C, P, B, Bi, Sb, Al, In, and Zn, where the element X is optionally present and the content of the constituent element M of the amorphous M·A·X alloy is M/(M+A+X)=20 to 80 atomic %.
摘要翻译:一种用于可再充电锂电池的阳极的电极材料,其包含具有基本上非化学计量比组成的非晶态M.A.X合金的颗粒。 在式MAX中,M表示选自由Si,Ge和Mg组成的组中的至少一种元素,A表示选自过渡金属元素中的至少一种元素,X表示 选自Ba,Sr,Ca,La,Ce,C,P,B,Bi,Sb,Al,In和Zn中的至少一种元素,其中元素X任选地存在, 无定形MAX合金的构成元素M为M /(M + A + X)= 20〜80原子%。
摘要:
A highly reliable rechargeable battery comprising an anode, a separator, a cathode, an electrolyte or an electrolyte solution, and a housing, characterized in that said anode is structured to have a size which is greater than that of said cathode. The rechargeable battery provides an increased energy density and has a prolonged charging and discharging cycle life, in which a dendrite causing a reduction in the battery performance, which is generated upon operating charging in the conventional rechargeable battery, is effectively prevented from generating or from growing in the case where it should be generated.
摘要:
A lithium secondary battery comprising at least a negative electrode, a positive electrode and an electrolyte, and utilizing oxidizing and reducing reactions of lithium ions for charging and discharging, wherein an electrode having an active material which has at least an amorphous phase and a half value width not smaller than 0.48 degrees of a peak having a highest diffraction intensity at 2&thgr; on an X-ray diffractometric chart traced at a diffraction intensity at an X-ray diffraction angle of 2&thgr;, and is made of a material which has an amorphous phase and contains at least one element selected from among cobalt, nickel, manganese and iron is used as the negative electrode and/or the positive electrode.
摘要:
An alkali rechargeable battery having an anode principally comprising a magnesium-nickel alloy capable of storing hydrogen therein and releasing said hydrogen stored therein in electrochemical reaction, wherein said magnesium-nickel alloy constituting said anode has a surface having a coat layer provided thereon, and said coat layer comprises an insulating material which is not dissolved in an electrolyte solution comprising an aqueous alkali solution used in said rechargeable battery, which restrains a reaction which cases a magnesium hydroxide when said magnesium-nickel alloy contacts with said electrolyte solution, and which allows hydrogen or hydrogen ion to pass therethrough. A process for the production of said rechargeable battery.
摘要:
A secondary battery exhibiting a long cycle life and comprising a negative pole activating material made of lithium or zinc is provided, the battery at least having a negative pole made of lithium or zinc serving as the negative pole activating material, an electrolyte (electrolytic solution), a separator, a positive pole made of a positive pole activating material, a collecting electrode and a battery case, wherein at least the surface of the negative pole is covered with a film having a structure which allows ions relating to the battery reactions to pass through. Since growth of dendrite of lithium or zinc at the time of the charge can be prevented, short circuit between the negative pole and the positive pole can be prevented. Therefore, the charge/discharge cycle life can significantly be lengthened. As a result, a lithium secondary battery, a nickel-zinc secondary battery, an air-zinc secondary battery, a bromine-zinc secondary battery and a silver oxide-zinc secondary battery of the long cycle life can be manufactured.
摘要:
Provided is a charging method of a secondary battery capable of reducing the irreversible quantity in initial charge and discharge cycles after production of the battery and improving charge and discharge cycle characteristics. The secondary battery is at least comprised of an anode, a cathode, and an electrolyte and has a curve of anode potential or cathode potential against storage quantity, or an open-circuit voltage curve against storage quantity with inflection points. A charging operation of the secondary battery is carried out in a predetermined wave form at least until the inflection point. After passing the inflection point, until a fully charged state is achieved, the charging is performed in a different pattern from that before the inflection point.
摘要:
A method for producing an electrolyte comprising a salt of an organofluorosilicon compound containing silicon, fluorine and carbon, which comprises the step of reacting an organosilane compound containing at least silicon and carbon, with a fluorine compound in a solvent comprising a nonaqueous solvent as a main component.
摘要:
A purpose of the present invention is to provide a secondary battery of high safety and high energy density. The battery of the present invention is a secondary battery microcapsules containing lithium at least formed of negative electrode active material, a separator, positive electrode active material, electrolytic solution (electrolyte), a collector and a battery case, characterized in that microcapsules are dispersed within the electrolytic solution or separator, said microcapsules discharging the chemical substance having hydroxyl group or chemical substance which is polymerization initiator, when the temperature within battery rises.
摘要:
A process for forming a high quality polycrystalline semiconductor film on an insulating substrate which comprises using a MW-PCVD apparatus comprising a plasma generation chamber provided with a microwave introducing means and a film-forming chamber connected through a grid electrode to said plasma generation chamber, said film-forming chamber containing said insulating substrate positioned on a substrate holder made of a conductive material being installed therein, producing plasma by contacting a film-forming raw material gas with a microwave energy applied through said microwave introducing means in said plasma generation chamber and introducing said plasma into said film-forming chamber while applying a high frequency voltage with a frequency in the range of from 20 to 500 MHz between said grid electrode and said substrate holder to thereby cause the formation of said polycrystalline semiconductor film on said insulating substrate maintained at a desired temperature.
摘要:
In a microwave plasma CVD apparatus in which material gas is formed into plasmas by electric discharge of microwaves in a plasma generating chamber provided with a first magnetic field generating device introduced into a deposition chamber and reacted with starting material gas introduced in the deposition chamber, to form a deposited film on a substrate, a second magnetic field generation device is situated at the rear side of a substrate table disposed in the deposition chamber with one of the magnetic poles thereof being faced to the magnetic pole, at the opposite polarity, of the first magnetic field generating device situated on the side of the deposition chamber, so that the time-averaged magnetic flux density is made uniform on the surface of the specimen substrate, thereby making the plasma density more uniform on the substrate and making the distribution of the deposited film thickness more uniform.