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1. 发明专利

JPH1021959A NONAQUEOUS ELECTROLYTE, AND LITHIUM SECONDARY BATTERY USING THE SAME 失效
公开(公告)号：JPH1021959A
公开(公告)日：1998-01-23
申请号：JP19154096
申请日：1996-07-01
申请人： MITSUBISHI CABLE IND LTD
发明人： SOEJIMA HIROSHI
IPC分类号： H01M10/05 , H01M10/052 , H01M10/0525 , H01M10/0567 , H01M10/0569 , H01M10/40
摘要： PROBLEM TO BE SOLVED: To provide nonaqueous electrolyte of excellent safety and battery characteristics, and a lithium secondary battery using that. SOLUTION: In nonaqueous electrolyte including organic solvent including cyclic formal and lithium salt electrolyte, polymerization catalyst to polymerizer the organic solvent is additionally included. Above catalyst is other than lithium salt electrolyte, that is microcapsuled LiClO4 , for example, so in the nonaqueous electrolyte, the organic solvent can be speedily polymerized vrithout blending lithium salt electrolyte in large quantity, thereby excellent safety and excellent battery characteristics can be provided.

2. 发明专利

JPH05331248A CROWN-BASED POLYMER AND SOLID ELECTROLYTE 失效
公开(公告)号：JPH05331248A
公开(公告)日：1993-12-14
申请号：JP16434992
申请日：1992-05-28
申请人： MITSUBISHI CABLE IND LTD
发明人： SOEJIMA HIROSHI
IPC分类号： C08F8/00 , C08F30/08 , C08F290/00 , C08F299/00 , C08L57/00 , H01B1/06 , H01M6/18
摘要： PURPOSE:To obtain a solid electrolyte having excellent conductivity of carrier ion of base polymer, showing excellent ionic conductivity at room temperature. CONSTITUTION:A crown-based polymer comprises a crown ether-based compound containing a polymerizable organic group as a structure wherein a polyether-based cyclic part (2) is configurated and maintained through a polymerization chain (1, 3) in a tunneled state. A solid electrolyte comprises a mixture of the crown-based polymer, an electrolyte and a hydrogel. Carrier ions can be transferred through a polyether-based cyclic part arranged in a tunneled state in the crown-based polymer to a state where the carrier ions hardly cause an energy loss by collision with molecular chains. Ionic conductivity is improved by using the hydrogel besides the crown-based polymer.

3. 发明专利

JPH05325631A SOLID ELECTROLYTE 失效
公开(公告)号：JPH05325631A
公开(公告)日：1993-12-10
申请号：JP12459292
申请日：1992-05-18
申请人： MITSUBISHI CABLE IND LTD
发明人： SOEJIMA HIROSHI
IPC分类号： H01B1/06 , H01M6/18 , H01M10/05 , H01M10/0565 , H01M10/40
摘要： PURPOSE:To provide a solid electrolyte with high ionic conductivity from which substantial driving force can be obtained. CONSTITUTION:This is a solid electrolyte 1 formed between a pair of electrodes 2, 3, wherein the solid electrolyte has a difference in the percentage content of a lone electron pair (x) in a molecule from a negative electrode 2 side to a positive electrode 3 side and is constituted by laminating a substrate polymer P into three layers or more so as to sequentially increase the percentage content of a lone electron pair and then doping an ion carrier therein. Thereby, the gradient of concentration of alkali metal ions is formed within a solid electrolyte, so that the dissolution of negative electrode alkali metal is accelerated to provide a large driving force whereby a solid electrolyte having high ion conductivity may be obtained. Also, a solid electrolyte with the desired ionic conductivity may be easily obtained by changing the percentage content of the lone electron pair within the substrate polymer.

4. 发明专利

JPH04134061A CYCLOBUTENE DERIVATIVE, PRODUCTION AND USE THEREOF 失效
公开(公告)号：JPH04134061A
公开(公告)日：1992-05-07
申请号：JP25293790
申请日：1990-09-21
申请人： MITSUBISHI CABLE IND LTD , MATSUOKA MASARU
发明人： MATSUOKA MASARU , SOEJIMA HIROSHI
IPC分类号： C07D333/22 , C07D207/333 , C07D209/12 , C07D307/38 , C07D307/40 , C07D307/80 , C07D333/56 , C07D487/04 , C07D493/04 , C07D495/04 , C09K9/02
摘要： NEW MATERIAL:A cyclobutene derivative shown by formula I {Z1 and Z2 are O or S; phi1 and phi2 are group shown by formula II [X is O, S, alkyl or N containing H; R1 is alkyl or H; R2 and R3 are R1, alicyclic or aromatic hydrocarbon group, aliphatic or aromatic heterocyclic group (which may contain substituent group on ring) or R2 and R3 are the same as R2 or R3 except R1] or phi1 and phi2 are subjected to ring closure to form ortho condensation heterocyclic ring. EXAMPLE:3,4-Di[1,2,5-trimethylpyrrolyl]-3-cyclobutene-1,2-dione. USE:A dyestuff material soluble in various kinds of solvents, not showing ionicity like a conventional squarylium dyestuff, nonionic and especially useful as a functional dyestuff having especially photochromic properties. The dyestuff material made into a thin film state has absorption in an ultraviolet light range and optimum as a sunglass. PREPARATION:A compound shown by formula III (X1 and X2 are F or Cl) is reacted with a compound shown by formula IV to readily give a compound shown by formula I.

5. 发明专利

JPH08180853A SEPARATOR AND LITHIUM SECONDARY BATTERY 失效
公开(公告)号：JPH08180853A
公开(公告)日：1996-07-12
申请号：JP33605294
申请日：1994-12-21
申请人： MITSUBISHI CABLE IND LTD
发明人： TAKADA YOSHINORI , SOEJIMA HIROSHI
IPC分类号： H01M2/16 , H01M10/05 , H01M10/052 , H01M10/0566 , H01M10/40
摘要： PURPOSE: To provide a Li secondary battery excellent in charging and discharg ing cycle life and excellent in long-term keeping property with high charging and discharging capacity, and a separator therefor. CONSTITUTION: A Li secondary battery has a Li secondary battery forming separator 4 having porous insulating films 42 having electrolyte holding property on both side of a Li-ion permeable metal film 41, a positive electrode layer 3 provided on one side of the separator 4 for holding an electrolyte consisting of an organic solvent solution of Li salt and a Li alloy negative electrode layer 5 provided on the other side. The metal film 41 of the separator 3 functions as a Li-ion permeable bipolar electrode, and also functions to moderate the local current collection to the negative electrode surface protruding part derived from the change with the lapse of time of the negative electrode surface by charge and discharge, and the local pulverization of the negative electrode and the generation of dendrite are suppressed.

6. 发明专利

JPH07326344A NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY USING THE SAME 失效
公开(公告)号：JPH07326344A
公开(公告)日：1995-12-12
申请号：JP11789494
申请日：1994-05-31
申请人： MITSUBISHI CABLE IND LTD
发明人： SOEJIMA HIROSHI , TAKADA YOSHINORI
IPC分类号： H01M4/62 , H01M4/134 , H01M10/05 , H01M4/02 , H01M10/40
摘要： PURPOSE:To provide a negative electrode for lithium secondary battery which has a large charge/discharge capacity and a high electromotive force, and is minimized in the deterioration by repeat of charge/discharge, and also provide an excellent lithium secondary battery by use of this negative electrode. CONSTITUTION:This negative electrode A for lithium secondary battery has a cover layer 2 permeable to at least Li ion formed on the surface of an active material layer 1 consisting of a Li metal, and this lithium secondary battery has the above negative electrode. Examples of the cover layer 2 include a one consisting of a polymer permeable to an electrolyte 3 and Li ion such as polyethylene oxide and polyether urethane acrylate. The mechanical strength of the cover layer is preferably higher than the mechanical strength of metal Li.

7. 发明专利

JPH07326340A NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY USING THE SAME 失效
公开(公告)号：JPH07326340A
公开(公告)日：1995-12-12
申请号：JP11629294
申请日：1994-05-30
申请人： MITSUBISHI CABLE IND LTD
发明人： SOEJIMA HIROSHI , TAKADA YOSHINORI
IPC分类号： H01M4/62 , H01M4/134 , H01M4/36 , H01M4/587 , H01M4/74 , H01M10/05 , H01M4/02 , H01M10/40
摘要： PURPOSE:To provide a negative electrode for lithium secondary battery which has a large charge/discharge capacity and a high electromotive force, and is minimized in the deterioration by repeat of charge/discharge, and a lithium secondary battery using this negative electrode. CONSTITUTION:This negative electrode for lithium secondary battery has a woven fabric or nonwoven fabric 2 formed of a fiber 1 containing Li or Li alloy and carbon. The material of the fiber 1 is preferably in the state where carbon particles are dispersed in Li or Li alloy, and as the Li alloy, Li-Ag-Te alloy is particularly preferred. The carbon content in the material is preferably about 10-10 volume ppm. This lithium secondary battery is formed by use of the above negative electrode A for lithium secondary battery.

8. 发明专利

JPH06220208A PRODUCTION OF ORGANOGEL 失效
公开(公告)号：JPH06220208A
公开(公告)日：1994-08-09
申请号：JP2764793
申请日：1993-01-21
申请人： MITSUBISHI CABLE IND LTD
发明人： SOEJIMA HIROSHI
IPC分类号： B01J13/00 , C08J3/00 , C08L29/02 , C08L29/04 , C08L71/02
摘要： PURPOSE:To produce directly a silicon-rubber-like tough organogel comprising polyvinyl alcohol or/and polyolefin oxide and reduced in the formation of cracks and crazes by using an organic solvent. CONSTITUTION:An organogel is produced by dissolving polyvinyl alcohol or/and polyolefin oxide together with optionally a metal salt in an organic solvent of a relative dielectric constant of 30 or above and subjecting the obtained solution to a freezing and thowing treatment while slowing the temperature change during the freeze treatment or/and the thawing treatment. Alternatively, an organogel is produced by dissolving polyvinyl alcohol or/and polyolefin oxide together with optionally a metal salt in an organic solvent having a relative dielectric constant of 30 or above and containing a nonpolar organic solvent and subjecting the obtained solution to a feezing and thawing treatment. The obtained organogel or gel-like electrolyte has a very low impurity content and an excellent quality.

9. 发明专利

JPH06150939A POROUS ELECTROLYTE BASE, ITS MANUFACTURE, AND SOLID ELECTROLYTE 失效
公开(公告)号：JPH06150939A
公开(公告)日：1994-05-31
申请号：JP32255692
申请日：1992-11-05
申请人： MITSUBISHI CABLE IND LTD
发明人： SOEJIMA HIROSHI
IPC分类号： C08L101/00 , H01B1/06 , H01M6/18
摘要： PURPOSE:To provide solid electrolyte of a polymer base excellent in ion conductivity. CONSTITUTION:A porous electrolyte base composed of a porous body made of a polymer containing crosslinking treated polar unit, and the average pore diameter of the porous body is 50mum or less, and a composite polymer containing the polar unit-containing polymer and a non-polar polymer are formed, and after the polar unit-containing polymer is crosslinking treated under the existence of a crosslinking agent, the non-polar polymer is removed so as to manufacture the porous electrolyte base. The porous electrolyte base is made to contain electrolyte so as to form solid electrolyte. The solid electrolyte excellent in ion conductivity, and excellent also in mechanical strength and handling performance is obtained by using the polar unit-containing crosslinked polymer, having a dense porous structure, as the base.

10. 发明专利

JPH06145363A PRODUCTION OF POLYVINYL ALCOHOL GEL 失效
公开(公告)号：JPH06145363A
公开(公告)日：1994-05-24
申请号：JP32255792
申请日：1992-11-05
申请人： MITSUBISHI CABLE IND LTD
发明人： SOEJIMA HIROSHI
IPC分类号： C08F8/00 , C08J3/03 , C08K3/20 , C08K3/24 , C08L29/02 , C08L29/04
摘要： PURPOSE:To efficiently produce a gel from an aq. polyvinyl alcohol soln. CONSTITUTION:A polyvinyl alcohol gel is produced by cooling an aq. polyvinyl alcohol soln. contg. an alkali metal salt or a transition metal salt or/and a hardly water-sol. metal hydroxide, or by immersing, in an aq. alkali soln., an aq. polyvinyl alcohol soln. contg. a metal salt which forms a hardly water-sol. metal hydroxide and then cooling the polyvinyl alcohol soln. Thus is obtd. a gel excellent in environmental hygiene, durability, and resistance to electrical degradation and sometimes excellent in strengths or toughness. When a lithium salt is used, a gel electrolyte excellent in ion conductivity is produced efficiently.

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