摘要:
A non-aqueous electrolyte battery according to the present invention is a non-aqueous electrolyte battery including: a positive electrode including a positive collector and a positive active material containing layer formed on the positive collector; a negative electrode including a negative collector and a negative active material containing layer formed on the negative collector; and a separator provided between the positive electrode and the negative electrode. The positive electrode has a positive collector exposed portion at a part of the positive collector, on which the positive active material containing layer is not formed. An insulating resin film formed of a base substance of a heat resistant resin having a heat resistant temperature of 150° C. or more, the resin film containing a thermoplastic resin therein, is provided at a portion where the positive collector exposed portion and the negative active material containing layer are opposed to each other with the separator positioned therebetween.
摘要:
Organic borates having the formula: The borates are highly soluble in solvent of low dielectric constant. Also disclosed are nonaqueous electrolytes made from these organic borates; lithium secondary batteries with improved high-temperature storage characteristics; and electric appliances that comprises the battery and are free of protection circuits.
摘要:
The present invention provides a soft magnetic powder composite core for an electric apparatus produced with soft magnetic particles having electric insulating layers on the surfaces thereof, wherein said electric insulating layers are formed by mixing said soft magnetic particles with an insulating layer-forming solution which comprises a phosphating solution and a rust inhibitor, which is an organic compound containing at least one of nitrogen or sulfur having a lone pair of electrons suppressing the formation of iron oxide and surfactant, and drying the treated soft magnetic particles at a predetermined temperature. The soft magnetic powder composite core is excellent in iron loss and magnetic flux density.
摘要:
An electrochemical device of the present invention includes a positive electrode, a negative electrode, a non-aqueous electrolyte, and a separator. The separator includes a first porous layer composed mainly of a thermoplastic resin and a second porous layer composed mainly of insulating particles with a heat-resistant temperature of 150° C. or higher. The first porous layer is disposed to face the negative electrode.
摘要:
The separator for a battery according to the present invention is a separator for a battery including an insulator layer containing a fibrous material having a heat resistant temperature of equal to or higher than 150° C., insulating inorganic fine particles and a binder, or a separator for a battery including a porous layer formed of a thermal melting resin and an insulator layer containing insulating inorganic fine particles and a binder, wherein water content per unit volume is equal to or smaller than 1 mg/cm3 when the separator is held for 24 hours in an atmosphere with a relative humidity of 60% at 20° C. The use of the separator for a battery according to the present invention makes it possible to provide a lithium secondary battery that has favorable reliability and safety and is excellent in storage characteristics and charge-discharge cycle characteristics.
摘要翻译:根据本发明的电池用隔膜是一种电池用隔膜,其具有含有耐热温度为150℃以上的纤维材料的绝缘体层,绝缘性无机微粒和粘合剂,或 用于包括由热熔树脂形成的多孔层和包含绝缘无机细颗粒和粘合剂的绝缘体层的电池的隔板,其中当隔板保持24时,每单位体积的水含量等于或小于1mg / cm 3 在20℃下相对湿度为60%的气氛中的小时。使用根据本发明的电池用隔膜可以提供具有良好的可靠性和安全性并且存储特性优异的锂二次电池 和充放电循环特性。
摘要:
An electrochemical device having excellent safety at a high temperature is provided by using a separator for an electrochemical device, which is made of a porous film including a first separator layer and a second separator layer. The first separator layer includes, as a main ingredient, at least one kind of resin selected from the group consisting of resin A that has a melting point in a range of 80° C. to 130° C., and resin B that absorbs a nonaqueous electrolyte and swells due to heating and whose swelling degree is increased as the temperature rises, the second separator layer includes, as a main ingredient, a filler that has a heat-resistant temperature of not lower than 150° C., and at least one of the first separator layer and the second separator layer includes flakes.
摘要:
The separator for a battery according to the present invention is a separator for a battery including an insulator layer containing a fibrous material having a heat resistant temperature of equal to or higher than 150° C., insulating inorganic fine particles and a binder, or a separator for a battery including a porous layer formed of a thermal melting resin and an insulator layer containing insulating inorganic fine particles and a binder, wherein water content per unit volume is equal to or smaller than 1 mg/cm3 when the separator is held for 24 hours in an atmosphere with a relative humidity of 60% at 20° C. The use of the separator for a battery according to the present invention makes it possible to provide a lithium secondary battery that has favorable reliability and safety and is excellent in storage characteristics and charge-discharge cycle characteristics.
摘要翻译:根据本发明的电池用隔膜是一种电池用隔膜,其具有含有耐热温度为150℃以上的纤维材料的绝缘体层,绝缘性无机微粒和粘合剂,或 用于包括由热熔树脂形成的多孔层和包含绝缘无机细颗粒和粘合剂的绝缘体层的电池的隔板,其中当隔板保持24时,每单位体积的水含量等于或小于1mg / cm 3 在20℃下相对湿度为60%的气氛中的小时。使用根据本发明的电池用隔膜可以提供具有良好的可靠性和安全性并且存储特性优异的锂二次电池 和充放电循环特性。
摘要:
A separator for an electrochemical device of the present invention includes a porous film including: a filler; an organic binder; and at least one resin selected from resin A that has a melting point of 80 to 140° C. and resin B that absorbs a non-aqueous electrolyte and swells upon heating and whose swelling degree increases with increasing temperature, and the filler contains boehmite having a secondary particle structure in which primary particles are connected.
摘要:
Organic borates having the formula: The borates are highly soluble in solvent of low dielectric constant. Also disclosed are nonaqueous electrolytes made from these organic borates; lithium secondary batteries with improved high-temperature storage characteristics; and electric appliances that comprises the battery and are free of protection circuits.
摘要:
A lithium secondary battery which is capable of terminating its operation safely with no accompanying rapid change in appearance, no gas generation, nor pressure change when any of an overcharge, overdischarge, and abnormal temperature rise occurs in the secondary battery itself. The lithium secondary battery includes a negative electrode, which is capable of absorbing and desorbing lithium, a positive electrode, which is capable of absorbing and desorbing lithium, and a non-aqueous electrolyte, wherein the non-aqueous electrolyte is solidified by a thermal reaction at a designated temperature.