JP2000331709A5 - - Google Patents
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- JP2000331709A5 JP2000331709A5 JP1999138065A JP13806599A JP2000331709A5 JP 2000331709 A5 JP2000331709 A5 JP 2000331709A5 JP 1999138065 A JP1999138065 A JP 1999138065A JP 13806599 A JP13806599 A JP 13806599A JP 2000331709 A5 JP2000331709 A5 JP 2000331709A5
- Authority
- JP
- Japan
- Prior art keywords
- secondary battery
- electrolyte secondary
- aqueous electrolyte
- negative electrode
- aqueous
- 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
- 239000003125 aqueous solvent Substances 0.000 description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 239000007773 negative electrode material Substances 0.000 description 6
- 229910002804 graphite Inorganic materials 0.000 description 5
- 239000010439 graphite Substances 0.000 description 5
- 125000004432 carbon atoms Chemical group C* 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 150000005678 chain carbonates Chemical class 0.000 description 2
- 150000005676 cyclic carbonates 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
- 239000002253 acid Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- -1 alkylene carbonate Chemical compound 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 150000001280 alpha hydroxy acids Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 125000004435 hydrogen atoms Chemical group [H]* 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
- 239000000126 substance Substances 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０．１〜１０重量％の下記一般式（１）で示される構造を有するα−ヒドロキシ酸の縮合物を含有することを特徴とする非水系電解液二次電池。
【化１】
（式中、Ｒは、水素原子、炭素数１〜４のアルキル基又は炭素数１〜４のアルコキシ基を表す）
【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】 請求項１ないし６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. In α-hydroxy, 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 structure represented by the following general formula (1) of 0.1 to 10% by weight. A non-aqueous electrolyte secondary battery characterized by containing a condensate of an acid.
[Chemical 1]
(In the formula, R represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or an alkoxy group having 1 to 4 carbon atoms).
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 comprises a cyclic carbonate selected from the group consisting of an alkylene carbonate having 2 to 4 carbon atoms in an alkylene group and a group consisting of a dialkyl carbonate having an alkyl group having 1 to 4 carbon atoms. The non-aqueous electrolyte secondary battery according to claim 2, wherein each of the selected 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 nonaqueous electrolyte used in the non-aqueous electrolyte secondary battery according to any one of claims 1 to 6.
【０００１】
【発明の属する技術分野】
本発明は、非水系電解液二次電池に関する。詳しくは、特定のα−ヒドロキシ酸の縮合物を含む電解液を用いる非水系電解液二次電池の改良に関する。
本発明の電池は、充放電効率が向上し、サイクル特性が優れているので、非水系二次電池の小型化、高性能化に寄与することができる。
[0001]
[Technical field to which the invention belongs]
The present invention relates to a non-aqueous electrolyte secondary battery. More specifically, the present invention relates to an improvement of a non-aqueous electrolyte secondary battery using an electrolyte containing a condensate of a specific α-hydroxy acid.
Since the battery of the present invention has improved charge / discharge efficiency and excellent cycle characteristics, it can contribute to miniaturization and high performance of non-aqueous secondary batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11138065A JP2000331709A (en) | 1999-05-19 | 1999-05-19 | Nonaqueous electrolyte secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11138065A JP2000331709A (en) | 1999-05-19 | 1999-05-19 | Nonaqueous electrolyte secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000331709A JP2000331709A (en) | 2000-11-30 |
| JP2000331709A5 true JP2000331709A5 (en) | 2006-06-29 |
Family
ID=15213167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11138065A Pending JP2000331709A (en) | 1999-05-19 | 1999-05-19 | Nonaqueous electrolyte secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000331709A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971409A (en) * | 2008-03-13 | 2011-02-09 | 宇部兴产株式会社 | Non-aqueous electrolyte for a lithium battery, lithium battery wherein said electrolyte is used, and hydroxy-acid derivative for use in said electrolyte |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100683666B1 (en) | 2004-02-04 | 2007-02-20 | 삼성에스디아이 주식회사 | Organic electrolytic solution and lithium battery employing the same |
| KR100725704B1 (en) | 2005-07-01 | 2007-06-07 | 주식회사 엘지화학 | Additive for nonaqueous electrolyte and secondary battery using the same |
| TWI350605B (en) * | 2006-08-25 | 2011-10-11 | Lg Chemical Ltd | Non-aqueous electrolyte and secondary battery using the same |
| FR3063578A1 (en) * | 2017-03-03 | 2018-09-07 | Arkema France | POLYMERIC ELECTROLYTE COMPOSITION FOR USE IN A BATTERY |
| CN114730879B (en) * | 2019-11-27 | 2024-04-05 | 株式会社村田制作所 | Secondary battery |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3229635B2 (en) * | 1991-11-12 | 2001-11-19 | 三洋電機株式会社 | Lithium secondary battery |
| JP3530544B2 (en) * | 1992-09-14 | 2004-05-24 | キヤノン株式会社 | Rechargeable battery |
| JP3291758B2 (en) * | 1992-06-02 | 2002-06-10 | 三菱化学株式会社 | Non-aqueous solvent secondary battery and its electrode material |
| JP3060796B2 (en) * | 1993-09-08 | 2000-07-10 | 松下電器産業株式会社 | Lithium secondary battery |
| JPH07192761A (en) * | 1993-12-27 | 1995-07-28 | Sanyo Electric Co Ltd | Nonaqueous system electrolyte battery |
| CA2197056A1 (en) * | 1997-02-07 | 1998-08-07 | Hydro-Quebec | New ionically conductive material with improved conductivity and stability |
-
1999
- 1999-05-19 JP JP11138065A patent/JP2000331709A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101971409A (en) * | 2008-03-13 | 2011-02-09 | 宇部兴产株式会社 | Non-aqueous electrolyte for a lithium battery, lithium battery wherein said electrolyte is used, and hydroxy-acid derivative for use in said electrolyte |
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