摘要:
A vehicle (V) includes a battery enclosure (152) enclosing a battery system (B). Each battery (Bn) includes a cell (1) that comprises a rolled lamination (LM) of a positive sheet electrode (11) having layers (13) of positive-pole-oriented active substance coated on both side of a charge collecting sheet (12), a negative sheet electrode (21) having layers (23) of negative-pole-oriented active substance coated on both sides of another charge collecting sheet (22), and electrolyte-containing separator (31) between the layers of active substances. The batter further includes a cell enclosure (2) totally enclosing the cell. A gas effluent system (100) for the battery system comprises a gas release system (RSn) for generated gas in the cell of each battery to be released outside the cell enclosure, and a gas discharge system (DS) for released gas to be discharged outside the battery enclosure. The gas release system comprises gas release circuitry including a network (NT) of blanks (Cp: P=1,2, . . . , q, . . . ) formed in the lamination, e.g. pointed or zoned blanks (14, 14A, 15, 16, 17, 18) formed in the layer(s) of active substance(s) and/or the charge collecting electrode(s), a blank space (Sp) between the cell and the cell enclosure, and release valve (4a, 6a). The gas discharge system comprises a gas discharge circuit (DC) communicable with the gas release circuitry, and provided as a draft controllable ducting (150, 170) defined between a floor panel (153) of vehicle body (VB) and a wall of the battery enclosure.
摘要:
There is provided a positive electrode comprising positive electrode active material granules which each are composed of lithium manganate; and a first surface layer which is formed on each of the positive electrode active material granules and is to transmit lithium (Li) ion but not manganese (Mn) ion therethrough.
摘要:
This invention relates to a lithium ion multi-cell battery (15) wherein plural lithium ion cells (C.sub.n) are arranged in series. Each cell comprises a positive electrode of manganese/spinal oxide and a negative electrode. A first Zener diode (Z.sub.n 1) and first resistor (R.sub.n 1) are connected in series between the electrodes. By setting the Zener voltage (VZ1) of the first Zener diode (Z.sub.n 1) equal to the cell voltage VL of the responding cell (C.sub.n) when positive electrode crystal phase transport stars in that cell (C.sub.n), the charge amount of each cell is made uniform.
摘要:
A state of charge indicator of a lithium ion battery computes a state of charge (SOC) corresponding to a cell open circuit voltage from a SOC-cell open circuit voltage characteristic map, and displays the SOC on a display device. Herein, the SOC-cell open circuit voltage characteristics are obtained by defining the battery charge amount when the open circuit voltage of the cell is 3.9 V as SOC=100%, and defining the battery charge amount when the open circuit voltage of the cell is 3.5 V as SOC=100%. By defining SOC=100% and SOC=0% in this way, the SOC can be correctly computed and displayed even if the battery has deteriorated.
摘要:
An inductor (L), capacitor (C) and alternator (OSC) are connected in series to the positive and negative poles of a battery (15). The temperature of the battery (15) is increased by causing the alternator (OSC) to generate an alternating current having the resonance frequency of the inductor (L) and capacitor (C). The alternating current is consumed by the internal resistance of the battery (15) due to the resonance of the inductor (L) and capacitor (C), and the temperature of the battery (15) therefore rises due to the heat thereby generated in the battery. In this way, the temperature of the battery (15) can be effectively increased with minimum power consumption.
摘要:
A cell which has become inactive is detected in a multi-cell battery (15) comprising plural cells (Cn). An inactivity detecting circuit comprising a signal generator (Dn1) and a diode (Dn2) connected in series, is connected in parallel with the cell (Cn) When the cell becomes inactive, the signal generator (Dn1) emits a signal to indicate the state of the cell. Hence, it is possible to economically detect loss of cell activity.
摘要:
A rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode includes a active material layer containing a positive electrode active material with the particle diameter of 5 μm or less and having the thickness at a range of 20 to 80 μm. Another rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode has two active material layers, each of which contains a positive electrode active material with a different diameter and has the thickness at a range of 20 to 30 μm.
摘要:
A multilayer battery cell comprises an ion-conductive separator film. A positive electrode layer is disposed on one surface of the separator film. A negative electrode layer is disposed on the other surface of the separator film. A first conductive layer is disposed on the positive electrode layer and electrically connected to the same. A second conductive layer is disposed on the negative electrode layer and electrically connected to the same. The positive and negative electrode layers and the first and second conductive layers are each produced by employing a spraying process.
摘要:
A bipolar battery includes: a bipolar electrode composed, by forming a positive electrode active material layer 12 an one surface of a current collector and forming a negative electrode active material layer 13 on the other surface; and a separator 14 composed to be stacked alternately with the bipolar electrode, wherein, in a single cell layer 15 composed by occluding the positive electrode active material layer 12, the separator 14 and the negative electrode active material layer 13, which are adjacent to one another, a thickness of the separator 14 is 0.68 times or more to less than 1.0 times a thickness of the positive electrode active material layer 12, and is 0.68 times or more to less than 1.0 times a thickness of the negative electrode active material layer 13.
摘要:
A battery includes a battery enclosure (3), a power-generating unit (50) accommodated in the battery enclosure (3), positive and negative terminal electrodes (1, 2). The battery enclosure (3) is composed of a laminate film compounded of metal and a polymer material, and has a rectangular shape. The power-generating unit (50) includes positive electrode collectors (5), negative electrode collectors (7) and separators (8). The positive and negative terminal electrodes (1, 2) have dimensions substantially equal to those of the positive and negative electrode collectors (5, 7), respectively. Further, the positive and negative terminal electrodes (1, 2) protrude from mutually different sides of the battery enclosure (3). The positive terminal electrode (1) is formed by protruding the positive electrode collectors (5) from the battery enclosure (3) in a state where end portions of the positive electrode collectors (5) are mutually stacked. The negative terminal electrode (2) is formed by protruding the negative electrode collectors (7) from the battery enclosure (3) in a state where end portions of the negative electrode collectors (7) are mutually stacked.