会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明申请
    • LITHIUM IRON PHOSPHATE HAVING AN OLIVINE STRUCTURE, AND PREPARATION METHOD THEREOF
    • 具有OLIVINE结构的锂铁磷酸盐及其制备方法
    • WO2010047524A3
    • 2010-07-29
    • PCT/KR2009006084
    • 2009-10-21
    • LG CHEMICAL LTDCHOY SANGHOONLEE YONG TAEPARK HONG-KYUPARK SOO MINLEE JI EUN
    • CHOY SANGHOONLEE YONG TAEPARK HONG-KYUPARK SOO MINLEE JI EUN
    • C01B25/30
    • C01B25/45H01M4/043H01M4/131H01M4/5825H01M2004/021
    • The present invention relates to a lithium iron phosphate having an olivine crystal structure, and more particularly, to an olivine lithium iron phosphate which consists of secondary particles having a mean diameter (D50) of 5~100 µm where primary particles having a mean diameter (D50) of 50~550 nm are agglomerated, the primary particles and the secondary particles have compositions of chemical formula (1) Li1+a Fe1-x Mx(PO4-b) Xb (where M, X, a, x, and b are as defined in the specification), and the secondary particles have a porosity of 15~40%. The lithium iron phosphate according to the present invention has the form of secondary particles, and thus can be produced into an electrode for a lithium secondary battery having a high volume density. The lithium iron phosphate of the present invention shortens mixing time to improve process efficiency. Further, the lithium iron phosphate of the present invention has a high porosity, and therefore at least a part of secondary particles collapses and is particulated into primary particles during the compression process for manufacturing an electrode, thus preventing the degradation of ionic conductivity caused by large particle size.
    • 本发明涉及具有橄榄石晶体结构的磷酸铁锂,更具体地说,涉及一种平均直径(D50)为5〜100μm的二次粒子的橄榄石磷酸铁锂,其中一次粒子的平均直径( D50)为50〜550nm附聚,初级粒子和二次粒子具有化学式(1)Li1 + a Fe1-xMx(PO4-b)Xb(其中M,X,a,x和b 如本说明书中所定义),二次颗粒的孔隙率为15〜40%。 根据本发明的磷酸铁锂具有二次粒子的形式,因此可以制成具有高体积密度的锂二次电池用电极。 本发明的磷酸铁锂缩短混合时间以提高加工效率。 此外,本发明的磷酸铁锂具有高孔隙率,因此在制造电极的压缩过程中至少一部分二次粒子塌陷并被微粒化成一次粒子,从而防止由于大的电极引起的离子导电性的降低 粒度。
    • 10. 发明申请
    • ON-CHANNEL REPEATER AND ON-CHANNEL REPEATING METHOD
    • 通道重发器和通道重复方法
    • WO2008140163A1
    • 2008-11-20
    • PCT/KR2007/005647
    • 2007-11-09
    • ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTEPARK, Sung-IkKIM, Heung-MookLEE, Jae-YoungSEO, Jae-HyunEUM, Ho-MinLEE, Yong-TaeLIM, Jong-SooLEE, Soo-In
    • PARK, Sung-IkKIM, Heung-MookLEE, Jae-YoungSEO, Jae-HyunEUM, Ho-MinLEE, Yong-TaeLIM, Jong-SooLEE, Soo-In
    • H04B7/14
    • H04B7/15585
    • Provided is an on-channel repeater, which removes feedback signals caused due to low isolation of transmission/reception antennas and a method thereof. The on-channel repeater includes : a receiver for receiving radio frequency (RF) signals and converting them into baseband signals; a subtractor for subtracting replicas of feedback signals from the baseband signals to thereby produce signals whose feedback signals are primarily removed; a demodulator for demodulating the signals which include the remaining feedback signals; an equalizer for equalizing the demodulated signals to thereby produce equalized signals; a transmitter for modulating the equalized signals to thereby produce modulated signals, converting the modulated signals into RF signals, and transmitting the RF signals in the air; a down-converter for down-converting the RF signals into baseband signals; and a replica generator for calculating the replicas based on the baseband signals of the down- converter and the signals without feedback signals of the subtractor, and feeding back them to the subtractor.
    • 提供一种同信道中继器,其消除由于发送/接收天线的低隔离引起的反馈信号及其方法。 同频中继器包括:用于接收射频(RF)信号并将其转换成基带信号的接收机; 减法器,用于从基带信号减去反馈信号的副本,从而产生其反馈信号被主要去除的信号; 解调器,用于解调包括剩余反馈信号的信号; 均衡器,用于均衡解调的信号,从而产生均衡的信号; 用于调制均衡信号从而产生调制信号的发射机,将调制信号转换为RF信号,并在空中传送RF信号; 用于将RF信号下变频为基带信号的下变频器; 以及用于基于下变频器的基带信号和没有减法器的反馈信号的信号来计算副本的副本生成器,并将其反馈到减法器。