JP2000353545A5 - - Google Patents
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- JP2000353545A5 JP2000353545A5 JP1999346733A JP34673399A JP2000353545A5 JP 2000353545 A5 JP2000353545 A5 JP 2000353545A5 JP 1999346733 A JP1999346733 A JP 1999346733A JP 34673399 A JP34673399 A JP 34673399A JP 2000353545 A5 JP2000353545 A5 JP 2000353545A5
- Authority
- JP
- Japan
- Prior art keywords
- aqueous electrolyte
- negative electrode
- secondary battery
- electrode material
- electrolyte secondary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000011255 nonaqueous electrolyte Substances 0.000 description 11
- 239000007773 negative electrode material Substances 0.000 description 8
- 239000003125 aqueous solvent Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 239000003575 carbonaceous material Substances 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 125000004432 carbon atoms Chemical group C* 0.000 description 2
- 150000005678 chain carbonates Chemical class 0.000 description 2
- 150000005676 cyclic carbonates Chemical class 0.000 description 2
- -1 cyclic sulfone Chemical class 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910000733 Li alloy Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000007561 laser diffraction method Methods 0.000 description 1
- 239000001989 lithium alloy Substances 0.000 description 1
- 229910003002 lithium salt Inorganic materials 0.000 description 1
- 159000000002 lithium salts Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000790 scattering method Methods 0.000 description 1
Description
【特許請求の範囲】
【請求項１】 リチウムを吸蔵・放出することが可能な負極材として黒鉛を含む負極、正極及び非水溶媒にリチウム塩を溶解してなる電解液から少なくとも構成される非水系電解液二次電池において、非水溶媒が環状カーボネート及び鎖状カーボネートを含有する混合非水溶媒であり、且つ非水溶媒が０．１容量％以上、５容量％未満の環内に炭素−炭素二重結合を有する環状スルホンを含有することを特徴とする非水系電解液二次電池。
【請求項２】 混合非水溶媒の７０容量％以上がカーボネートであることを特徴とする請求項１に記載の非水系電解液二次電池。
【請求項３】 混合非水溶媒が、アルキレン基の炭素数が２〜４のアルキレンカーボネートからなる群から選ばれる環状カーボネートとアルキル基の炭素数が１〜４であるジアルキルカーボネートからなる群から選ばれる鎖状カーボネートとをそれぞれ２０容量％以上含有し、且つ混合非水溶媒の７０容量％以上がこれらのカーボネートであることを特徴とする請求項１または２に記載の非水系電解液二次電池。
【請求項４】 負極材が、黒鉛のみからなる負極材、又はリチウムを吸蔵・放出することが可能な非黒鉛系炭素、リチウム、リチウム合金、及び金属酸化物からなる群から選ばれる少なくとも一種と黒鉛とを混合してなる負極材であることを特徴とする請求項１ないし３のいずれかに記載の非水系電解液二次電池。
【請求項５】 負極材が、Ｘ線回折における格子面（００２面）のｄ値が０．３３５〜０．３４ｎｍであり、且つ結晶子サイズ（Ｌｃ）が３０ｎｍ以上の炭素材料を含むことを特徴とする請求項１ないし４のいずれかに記載の非水系電解液二次電池。
【請求項６】 負極材が、Ｘ線回折における格子面（００２面）のｄ値が０．３３５〜０．３３７ｎｍであり、且つ結晶子サイズ（Ｌｃ）が５０ｎｍ以上の炭素材料からなることを特徴とする請求項５に記載の非水系電解液二次電池。
【請求項７】 負極材が、Ｘ線回折における格子面（００２面）のｄ値が０．３３５〜０．３３７ｎｍであり、且つ結晶子サイズ（Ｌｃ）が１００ｎｍ以上の炭素材料からなることを特徴とする請求項６に記載の非水系電解液二次電池。
【請求項８】 負極材が、レーザー回折・散乱法によるメジアン径が、７〜３０μｍである炭素材料からなることを特徴とする請求項１ないし７のいずれかに記載の非水系電解液二次電池。
【請求項９】 請求項１ないし８のいずれかに記載の非水系電解液二次電池に用いる非水系電解液。
[Claims]
1. A non-aqueous electrolyte secondary battery composed of at least a negative electrode containing graphite as a negative electrode material capable of occluding and releasing lithium, a positive electrode, and an electrolytic solution obtained by dissolving a lithium salt in a non-aqueous solvent. The non-aqueous solvent is a mixed non-aqueous solvent containing a cyclic carbonate and a chain carbonate, and the non-aqueous solvent has a carbon-carbon double bond in a ring of 0.1% by volume or more and less than 5% by volume. A non-aqueous electrolyte secondary battery characterized by containing a cyclic sulfone.
2. The non-aqueous electrolyte secondary battery according to claim 1, wherein 70% by volume or more of the mixed non-aqueous solvent is carbonate.
3. The mixed non-aqueous solvent is selected from the group consisting of a cyclic carbonate selected from the group consisting of an alkylene carbonate having 2 to 4 carbon atoms in an alkylene group and a dialkyl carbonate having 1 to 4 carbon atoms in an alkyl group. The non-aqueous electrolyte secondary battery according to claim 1 or 2, wherein each of the chain carbonates is contained in an amount of 20% by volume or more, and 70% by volume or more of the mixed non-aqueous solvent is these carbonates. ..
4. The negative electrode material is at least one selected from the group consisting of a negative electrode material consisting only of graphite, or a non-graphite carbon, lithium, lithium alloy, and a metal oxide capable of occluding and releasing lithium. The non-aqueous electrolyte secondary battery according to any one of claims 1 to 3, wherein the negative electrode material is a mixture of graphite and graphite.
5. The negative electrode material contains a carbon material having a d value of a lattice plane (002 plane) of 0.335 to 0.34 nm and a crystallite size (Lc) of 30 nm or more in X-ray diffraction. The non-aqueous electrolyte secondary battery according to any one of claims 1 to 4.
6. The negative electrode material is made of a carbon material having a lattice plane (002 plane) having a d value of 0.335 to 0.337 nm and a crystallite size (Lc) of 50 nm or more in X-ray diffraction. The non-aqueous electrolyte secondary battery according to claim 5.
7. The negative electrode material is made of a carbon material having a lattice plane (002 plane) having a d value of 0.335 to 0.337 nm and a crystallite size (Lc) of 100 nm or more in X-ray diffraction. The non-aqueous electrolyte secondary battery according to claim 6.
8. The secondary non-aqueous electrolyte solution according to claim 1, wherein the negative electrode material is made of a carbon material having a median diameter of 7 to 30 μm by a laser diffraction / scattering method. battery.
9. Non-aqueous electrolyte solution according to any one of claims 1 to 8. A non-aqueous electrolyte solution used for a secondary battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34673399A JP4706088B2 (en) | 1999-12-06 | 1999-12-06 | Non-aqueous electrolyte secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34673399A JP4706088B2 (en) | 1999-12-06 | 1999-12-06 | Non-aqueous electrolyte secondary battery |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11163682 Division | 1999-06-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2000353545A JP2000353545A (en) | 2000-12-19 |
| JP2000353545A5 true JP2000353545A5 (en) | 2006-06-29 |
| JP4706088B2 JP4706088B2 (en) | 2011-06-22 |
Family
ID=18385458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34673399A Expired - Fee Related JP4706088B2 (en) | 1999-12-06 | 1999-12-06 | Non-aqueous electrolyte secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4706088B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002025613A (en) * | 2000-07-10 | 2002-01-25 | Hitachi Maxell Ltd | Nonaqueous secondary battery |
| JP4140222B2 (en) | 2001-04-09 | 2008-08-27 | ソニー株式会社 | Negative electrode, non-aqueous electrolyte secondary battery, and negative electrode manufacturing method |
| JP5044967B2 (en) * | 2006-03-31 | 2012-10-10 | ソニー株式会社 | Secondary battery electrolyte and secondary battery |
| EP2378602B1 (en) | 2007-04-05 | 2018-12-19 | Mitsubishi Chemical Corporation | Nonaqueous electrolyte for secondary battery and nonaqueous-electrolyte secondary battery employing the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3229757B2 (en) * | 1994-09-05 | 2001-11-19 | 三洋電機株式会社 | Lithium secondary battery |
| JPH09147913A (en) * | 1995-11-22 | 1997-06-06 | Sanyo Electric Co Ltd | Nonaqueous electrolyte battery |
| DE69840833D1 (en) * | 1997-09-19 | 2009-06-25 | Mitsubishi Chem Corp | NON-AQUEOUS ELECTROLYTIC CELL |
| JP2000294278A (en) * | 1999-04-02 | 2000-10-20 | Mitsui Chemicals Inc | Nonaqueous electrolyte and secondary battery using it |
-
1999
- 1999-12-06 JP JP34673399A patent/JP4706088B2/en not_active Expired - Fee Related
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