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1. 发明专利

JP2005050822A Lithium secondary cell 审中-公开
标题翻译：锂二次细胞
公开(公告)号：JP2005050822A
公开(公告)日：2005-02-24
申请号：JP2004279352
申请日：2004-09-27
申请人： Hitachi Chem Co Ltd , Hitachi Ltd , 日立化成工業株式会社 , 株式会社日立製作所
发明人： HONBOU HIDETOSHI , TAKEUCHI SEIJI , MOMOSE HIDETO , HORIBA TATSUO , MURANAKA TADASHI , ISHII YOSHITO
IPC分类号： C01B31/04 , H01M4/02 , H01M4/36 , H01M4/587 , H01M10/05 , H01M10/0525 , H01M4/58 , H01M10/40
CPC分类号： Y02E60/122
摘要： PROBLEM TO BE SOLVED: To provide a carbon material having large lithium storage/release capacity and its manufacturing method, as well as a nonaqueous system secondary cell having high capacity using above and a good rapid charge and discharge property. SOLUTION: The nonaqueous system secondary cell is structured using graphite powder with a particle diameter of 100μm or less and a rhombohedral structure ratio existing in a crystal structure of 20% or less as a negative electrode active material. The graphite powder like this can be obtained by carrying out a heating process at a temperature of 900°C or more after the graphite is pulverized by a jet mill. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供具有大的锂储存/释放能力的碳材料及其制造方法，以及具有高容量并且具有良好快速充放电性能的非水系二次电池。解决方案：非水系二次电池使用粒径为100μm以下的石墨粉末和晶体结构中存在的菱形结构比例为20％以下，作为负极活性物质。这样的石墨粉末可以通过在喷射磨机粉碎石墨之后在900℃以上的温度下进行加热处理而获得。版权所有（C）2005，JPO＆NCIPI

2. 发明专利

JPH11126585A BATTERY PACK AND ELECTRIC APPLIANCE USING IT 失效
公开(公告)号：JPH11126585A
公开(公告)日：1999-05-11
申请号：JP29123397
申请日：1997-10-23
申请人： HITACHI LTD , SHIN KOBE ELECTRIC MACHINERY
发明人： NISHIMURA KATSUNORI , YOSHIKAWA MASANORI , ANDO HISASHI , MURANAKA TADASHI , KOSEKI MITSURU , HORIBA TATSUO , ISHIZU TAKENORI , HASHIMOTO SHUICHI
IPC分类号： H01M2/02 , H01M2/10 , H01M10/05 , H01M10/0566 , H01M10/058 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a battery pack in which decrease in the weight energy density of battery is suppressed and the cooling efficiency is enhanced. SOLUTION: A plurality of rectangular nonaqueous electrolyte secondary unit cells equipped with a positive electrode, negative electrode, electrolyte, battery vessel, and battery lid, are arranged and electrically connected in series and/or in parallel, so that they become a battery. In this battery spacers 44 made of insulative plastics or rubber are sandwiched between the side faces of the unit cells 43 to connect them/into the battery pack.

3. 发明专利

JPH09200906A HYBRID ENGINE VEHICLE 失效
公开(公告)号：JPH09200906A
公开(公告)日：1997-07-31
申请号：JP581596
申请日：1996-01-17
申请人： HITACHI LTD
发明人： YAMAUCHI TERUO , KURATA KENICHIRO , KANEKO SATORU , HORIBA TATSUO
IPC分类号： B60K17/04 , B60K6/20 , B60K6/442 , B60K6/46 , B60L50/15 , B60W10/06 , B60W10/26 , B60W20/00 , B60L11/12 , B60K6/00 , B60K8/00
摘要： PROBLEM TO BE SOLVED: To provide an engine vehicle which can always discriminate an urban area from a suburban area positively with a simple structure and exhibit its performance sufficiently by suppressing potential pollution. SOLUTION: The accelerator open signal θTH of an accelerator pedal 10 and a brake operating signal BS of a brake pedal 11 are inputted into a frequency calculating circuit 14, and an accelerator opening change frequency FθTH and a brake operating frequency FBS which are outputted from the frequency calculating circuit 14 are incorporated into a calculating circuit 14. Determination of FθTH>=A or FBs >=B is conducted using prescribed constants A, B which are set and stored in a ROM 15. When the result of the determination is NO (negative), the driving environment of a vehicle is considered to be an urban area and driving is switched into driving with power of a battery 6. When the result is YES (affirmative), the driving environment is considered to be a suburban area and driving is switched into driving with power obtained by driving a generator 5 with an engine 4.

4. 发明专利

JPH0992280A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JPH0992280A
公开(公告)日：1997-04-04
申请号：JP24137895
申请日：1995-09-20
申请人： HITACHI LTD
发明人： ARAI JUICHI , ITO YUTAKA , IMAZEKI SHUJI , NISHIMURA KATSUNORI , HORIBA TATSUO
IPC分类号： H01M10/05 , C01B31/02 , H01M4/131 , H01M4/133 , H01M4/134 , H01M4/60 , H01M4/62 , H01M10/0569 , H01M4/58 , H01M4/02 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To retard the electrode reaction of a nonaqueous electrolyte and lengthen the cycle life and the storage life by covering the surface of a negative electrode or a positive electrode on the side coming in contact with the nonaqueous electrolyte with an electrode protecting film formed with a fluorinated anion surfactant. SOLUTION: A molecule adsorption film 7 of a fluorinated anion surfactant is formed as an electrode protecting film on at least the surface on the side coming in contact with a nonaqueous electrolyte of an electrode 6 of a lithium secondary battery. In addition, the molecule adsorption film 7 is formed as a first protecting film, and a lithium salt 8 containing fluorine is used as a supporting salt in the electrolyte. By utilizing the fact that the cohesive power between a fluorine group - a fluorine group is higher than that between the fluorine group - a hydrocarbon group, a lithium salt 8 or a dissociation anion 9 of the lithium salt, or both of the lithium salt 8 and the dissociation anion 9 are naturally adsorbed on the surface of the first protecting film after the electrolyte is poured to form a second protecting film.

5. 发明专利

JPH0927343A NONAQUEOUS SECONDARY BATTERY AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH0927343A
公开(公告)日：1997-01-28
申请号：JP17371895
申请日：1995-07-10
申请人： HITACHI LTD
发明人： FUKADA SHINICHI , HORIBA TATSUO
IPC分类号： H01M4/02 , B60L11/18 , H01M2/10 , H01M4/04 , H01M4/131 , H01M4/133 , H01M10/05 , H01M10/058 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery capable of sealing an organic electrolyte on the inside and easily adapting to an assembled battery by stacking a positive active material film, a negative active material film, and a current collector film on each surface of a porous separator base plate, and covering them with an insulator film. SOLUTION: A positive active material film 2 using a lithium cobalt compound oxide as the active material and a negative active material film 3 using graphite as the active material are formed on each surface of a separator base plate 1 made of porous glass through which an electrolyte in an electrolyte solution can move between positive and negative electrodes. A positive current collector film 4 made of aluminum is formed on the positive active material film 2 and a negative current collector film 5 made of copper is formed on the negative active material film 3. The positive and negative current collector films 4, 5 are completely covered with an insulating film 6 made of epoxy resin except for opening parts 7 of positive terminals 8, 9 for taking out current to the outside, and an organic electrolyte is sealed on the inside of the insulating film 6. A nonaqueous secondary battery with high safety and easy handling capability is obtained, and taking out, replacement, and reassembling of a unit cell within an assembled battery are freely made.

6. 发明专利

JPH08273702A LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JPH08273702A
公开(公告)日：1996-10-18
申请号：JP1722096
申请日：1996-02-02
申请人： HITACHI LTD
发明人： TAKEUCHI SEIJI , HONBOU HIDETOSHI , YAMAGATA TAKEO , HORIBA TATSUO , MURANAKA TADASHI
IPC分类号： B62M6/55 , C01B31/02 , C01B31/04 , H01M4/38 , H01M4/58 , H01M10/05 , H01M10/40 , B62M23/02 , H01M4/02
摘要： PURPOSE: To provide a lithium secondary battery with high discharge capacity, high output density, and excellent cycle characteristics by constituting a negative electrode of a unit cell by holding carbon particles on which a metal forming an alloy with lithium is carried in a current collector. CONSTITUTION: A lithium secondary battery having a capacity of 0.5wh-50kwh is obtained by winding a negative electrode 17 and a positive electrode 15 using LiCoO2 or the like as an active material around a positive terminal 16 through a separator 19. The negative electrode 17 is formed by applying carbon particles such as artificial graphite on which a metal capable of alloying with lithium, such as silver is carried to a current collector such as a copper foil. The carbon particles are preferable to have a spacing of planes (d002) as determined by X-ray diffraction of 3.354-3.369Å, a crystalline size in the direction of c axis (Lc) of 300Å or more, and a specific surface area of 0.1-30m /g or more. Particle size of the metal is preferable to be 1000Å or less, and the metal is fixed on the carbon particle for carrying. Energy density of 350w/kg of more and energy density of 30w/l at a charge/discharge rate of 1C or more can be obtained.

7. 发明专利

JPH08138654A NON-AQUEOUS SECONDARY BATTERY 失效
公开(公告)号：JPH08138654A
公开(公告)日：1996-05-31
申请号：JP28186594
申请日：1994-11-16
申请人： HITACHI LTD
发明人： TAKEUCHI SEIJI , HONBOU HIDETOSHI , HORIBA TATSUO , KAMO YUICHI , MIYADERA HIROSHI
IPC分类号： H01M10/05 , C01B31/02 , H01M4/02 , H01M4/36 , H01M4/587 , H01M4/62 , H01M4/64 , H01M4/66 , H01M10/0525 , H01M10/0566 , H01M4/58 , H01M10/40
摘要： PURPOSE: To extend the life of a lithium secondary battery based on the life extension of a negative electrode by providing a negative electrode composed of a Li7 Pb2 alloy powder and furnace black at a specified weight ratio and also an organic binder in a specified % of the total amount of the powder and the furnace black. CONSTITUTION: To produce an anode, a Li alloy powder and carbon powder are sufficiently mixed and ethylene-propylene ter polymer (EPDM) dissolved in xylene is so added to the mixture as to make the content of the EPDM be a prescribed weight percentage. An electric collector is coated with the obtained paste or filled with the paste and after being dried, the paste is formed by prescribed pressure. The metal with which Li metal is alloyed is preferably Pb and the preferable amount of the binder is 2-6%. Furnace black with about 0.1-30μm size is preferable as the carbon powder and the mixing weight ratio of the carbon powder to the Li alloy powder is preferably (90:8)-(68:30) and the balance should be the organic binder. The carbon among alloy powder particles decreases the inner resistance of the negative electrode and suppresses the formation of low alloy phase.

8. 发明专利

JPH0689745A SECONDARY BATTERY SYSTEM 失效
公开(公告)号：JPH0689745A
公开(公告)日：1994-03-29
申请号：JP24035692
申请日：1992-09-09
申请人： HITACHI LTD
发明人： MIZUMOTO MAMORU , HONBOU HIDETOSHI , GOTO AKIHIRO , NISHIMURA KATSUNORI , HORIBA TATSUO
IPC分类号： G01R31/36 , H01M10/48
摘要： PURPOSE:To give information about the number of charging cycles admitted till the battery replacement or the date of it previously and prevent occurrence of accident by furnishing a current sensor, cumulator, counter, memory part, calculation part, and display part. CONSTITUTION:When operation of the system is started, the discharging capacity during discharging period is cumulated via a current sensor 11, counter 12, and cumulator 13 installed in series to a pack of batteries and is stored in a memory part 14. A calculation part 51 determines the factor while the discharge capacity per cycle is used as a function of the number of cycles, and the number of cycles until the minimum guaranteed discharge capacity of the secondary battery system as the object is attained, is calculated by means of extrapolation, and the anticipated lifetime is given on a display part 52. As this anticipation of the system lifetime allows knowing in advance the timing of battery replacement, it is practicable to operate the system with well-prepared schedule, and the coordination with the load side using secondary battery can be enhanced. It is also possible to prevent occurrence of accident by sensing failure in advance in the system.

9. 发明专利

JPH0643225A SECONDARY BATTERY DEVICE 失效
公开(公告)号：JPH0643225A
公开(公告)日：1994-02-18
申请号：JP19673892
申请日：1992-07-23
申请人： HITACHI LTD
发明人： HORIBA TATSUO , IGAWA MICHIKO , MIZUMOTO MAMORU
IPC分类号： G01R31/36
摘要： PURPOSE:To clearly detect the charged state of a battery by utilizing three kinds of detection signals including the change quantity of the internal resistance of the battery, the electricity quantity charged into and discharged from the battery, and the absolute value of the internal resistance of the battery. CONSTITUTION:The change quantity of the internal resistance is utilized for detecting the capacity at the discharge terminal state of a secondary battery 11, and the integrated value of the electricity quantity charged into and discharged from the battery 11 is utilized for detecting the capacity at the relatively high charged state. A high-frequency current is fed to a resistance measurement section 13 from a high-frequency power source section 14 to measure the internal resistance of the battery 11, the electricity quantity charged into and discharged from the battery 11 is detected by an electricity quantity detection section 15, and the temperature of the battery 11 is detected by a temperature sensor 12. An arithmetic section 16 calculates the residual capacity of the battery 11 based on these measured data. The change of the residual capacity at the high charged state can be nearly quantitatively grasped, and the charged state of the battery 11 can be detected in advance even when the residual capacity is less than that estimated from the integrated value of the electricity quantity and an electric discharge is quickly disabled due to the effect of the self-discharge, temperature characteristic, and deterioration of the battery 11.

10. 发明专利

JPH05137211A CHARGED STATE INDICATOR OF BATTERY FOR ELECTRIC AUTOMOBILE 失效
公开(公告)号：JPH05137211A
公开(公告)日：1993-06-01
申请号：JP28267491
申请日：1991-10-29
申请人： HITACHI LTD
发明人： HORIBA TATSUO , MURANAKA TADASHI , NISHIMURA SHIGEOKI
IPC分类号： B60L11/18 , B60L3/00 , H02J7/00
摘要： PURPOSE:To provide an indication of the charged state of battery as clear as that in a conventional gasoline engine vehicle by taking account of leaving conditions, discharge conditions, and the history of battery in addition to precise monitoring of electric amounts entering into and feeding out of the power supply of an electric automobile. CONSTITUTION:Upon provision of a start command, a register at an ALU section 6 is loaded to prepare for monitoring of the charged state of a battery 1. Charging operation is sustained by means of a charger 2 upto the end of charging operation under predetermined charging conditions depending on the capacity, voltage, and the like, of the battery. At the end of charging operation, charging times are counted through arithmetic operation. An electric charging amount is then determined based on a conduction amount, from the start to the end of charging operation, measured by means of an electric amount meter 10. Thus determined electric amount is then subjected to charging rate correction to obtain a charging capacity. Charging times is then read out and in case of charging operation of second or following time, a travelable distance is indicated on a travelable distance meter 11. According to the constitution, such trouble as an electric automobile becomes untravelable at a place difficult to charge the battery, e.g. on a road, can be avoided positively.

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