JPH02150760U - - Google Patents
Info
- Publication number
- JPH02150760U JPH02150760U JP1989060816U JP6081689U JPH02150760U JP H02150760 U JPH02150760 U JP H02150760U JP 1989060816 U JP1989060816 U JP 1989060816U JP 6081689 U JP6081689 U JP 6081689U JP H02150760 U JPH02150760 U JP H02150760U
- Authority
- JP
- Japan
- Prior art keywords
- protruding
- negative electrode
- positive electrode
- free end
- winding portion
- 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.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims description 10
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052744 lithium Inorganic materials 0.000 claims description 7
- 229910052723 transition metal Inorganic materials 0.000 claims 1
- 150000003624 transition metals Chemical class 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Secondary Cells (AREA)
Description
第１図〜第５図は本考案の一実施例によるリチ
ウム二次電池を示すものであつて、第１図はリチ
ウム二次電池に組み込まれる巻回電極体のセパレ
ータの両端部分を切り欠いた概略的な横断下面図
、第２図は第１図に示す巻回電極体を作成するの
に用いる積層電極体の中間部分を省略しかつセパ
レータの両端部分を切り欠いた概略的な斜視図、
第３図は第２図に示す積層電極体のセパレータを
省略した正面図、第４図は第１図に示す巻回電極
体を組み込んだリチウム二次電池の概略的な縦断
面図、第５図は巻回電極体のはみ出し部分の幅△
Ｗと放電容量との関係を示す図である。
なお、図面に用いられた符号において、１……
帯状正極、２……帯状負極、３……帯状セパレー
タ、１２……巻回電極体、１７……正極の最内周
の巻回部分、１８……負極の最内周の巻回部分、
１９……正極の最外周の巻回部分、２０……負極
の最外周の巻回部分、２３……第１のはみ出し部
分、２４……第２のはみ出し部分、３１……第３
のはみ出し部分、３２……第４のはみ出し部分、
である。
Figures 1 to 5 show a lithium secondary battery according to an embodiment of the present invention, and Figure 1 shows a lithium secondary battery in which both ends of a separator of a wound electrode body to be incorporated in the lithium secondary battery are cut away. FIG. 2 is a schematic cross-sectional bottom view; FIG. 2 is a schematic perspective view with the intermediate portion of the laminated electrode body used to create the wound electrode body shown in FIG. 1 omitted and both end portions of the separator cut away;
3 is a front view of the laminated electrode body shown in FIG. 2 with the separator omitted, FIG. 4 is a schematic vertical cross-sectional view of a lithium secondary battery incorporating the wound electrode body shown in FIG. 1, and FIG. The figure shows the width of the protruding part of the wound electrode body △
FIG. 3 is a diagram showing the relationship between W and discharge capacity. In addition, in the symbols used in the drawings, 1...
Band-shaped positive electrode, 2... Band-shaped negative electrode, 3... Band-shaped separator, 12... Winding electrode body, 17... Innermost winding portion of the positive electrode, 18... Innermost winding portion of the negative electrode,
19... Outermost winding part of positive electrode, 20... Outermost winding part of negative electrode, 23... First protruding part, 24... Second protruding part, 31... Third
The protruding part, 32...the fourth protruding part,
It is.
Claims (1)
負極と、Ｌｉｘ ＭＯ２（Ｍは１種または１種よ
りも多い遷移金属を表わし、０．０５≦ｘ≦１．
１０である）を用いた帯状の正極と、帯状のセパ
レータとがその長さ方向に沿つて渦巻状に巻回さ
れて、上記負極と上記正極との間に上記セパレー
タが介在するように構成された巻回電極体を具備
するリチウム二次電池において、 上記正極の最外周の巻回部分の更に外周に上記
負極の最外周の巻回部分を配置すると共に上記負
極の最外周の巻回部分の自由端部に上記正極の最
外周の巻回部分の自由端部からはみ出した第１の
はみ出し部分を設け、 上記正極の最内周の巻回部分の更に内周に上記
負極の最内周の巻回部分を配置すると共に上記負
極の最内周の巻回部分の自由端部に上記正極の最
内周の巻回部分の自由端部からはみ出した第２の
はみ出し部分を設け、 上記負極の幅方向の両端部に上記正極の幅方向
の両端部からはみ出した第３及び第４のはみ出し
部分をそれぞれ設けたことを特徴とするリチウム
二次電池。[Claims for Utility Model Registration] A strip-shaped negative electrode that can be doped and dedoped with lithium, Li x MO 2 (M represents one or more transition metals, and 0.05≦x≦1.
10) and a strip-shaped separator are spirally wound along the length thereof, and the separator is interposed between the negative electrode and the positive electrode. In a lithium secondary battery having a wound electrode body, the outermost wound portion of the negative electrode is disposed further outside the outermost wound portion of the positive electrode, and the outermost wound portion of the negative electrode is A first protruding portion protruding from the free end of the outermost winding portion of the positive electrode is provided at the free end, and a first protruding portion of the innermost winding portion of the negative electrode is provided further inside the innermost winding portion of the positive electrode. a second protruding portion protruding from the free end of the innermost winding portion of the positive electrode at the free end of the innermost winding portion of the negative electrode; A lithium secondary battery characterized in that third and fourth protruding portions protruding from both widthwise ends of the positive electrode are provided at both widthwise ends, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989060816U JP2506572Y2 (en) | 1989-05-25 | 1989-05-25 | Lithium ion secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989060816U JP2506572Y2 (en) | 1989-05-25 | 1989-05-25 | Lithium ion secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02150760U true JPH02150760U (en) | 1990-12-27 |
| JP2506572Y2 JP2506572Y2 (en) | 1996-08-14 |
Family
ID=31588513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989060816U Expired - Lifetime JP2506572Y2 (en) | 1989-05-25 | 1989-05-25 | Lithium ion secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2506572Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998038688A1 (en) * | 1997-02-28 | 1998-09-03 | Asahi Kasei Kogyo Kabushiki Kaisha | Nonaqueous secondary battery and method for manufacturing the same |
| JP2000082495A (en) * | 1998-09-04 | 2000-03-21 | Sony Corp | Solid electrolyte battery |
| CN116914227A (en) * | 2023-09-13 | 2023-10-20 | 厦门海辰储能科技股份有限公司 | Electrode assembly, energy storage device and electric equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60112264A (en) * | 1983-11-18 | 1985-06-18 | Sanyo Chem Ind Ltd | Negative pole material and battery |
| JPS6369154A (en) * | 1986-09-11 | 1988-03-29 | Toshiba Battery Co Ltd | Nonaqueous electrolyte secondary battery |
| JPH01128370A (en) * | 1987-11-11 | 1989-05-22 | Nippon Telegr & Teleph Corp <Ntt> | Nonaqueous solvent secondary cell |
| JPH02262277A (en) * | 1989-03-31 | 1990-10-25 | Matsushita Electric Ind Co Ltd | Lithium secondary battery |
-
1989
- 1989-05-25 JP JP1989060816U patent/JP2506572Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60112264A (en) * | 1983-11-18 | 1985-06-18 | Sanyo Chem Ind Ltd | Negative pole material and battery |
| JPS6369154A (en) * | 1986-09-11 | 1988-03-29 | Toshiba Battery Co Ltd | Nonaqueous electrolyte secondary battery |
| JPH01128370A (en) * | 1987-11-11 | 1989-05-22 | Nippon Telegr & Teleph Corp <Ntt> | Nonaqueous solvent secondary cell |
| JPH02262277A (en) * | 1989-03-31 | 1990-10-25 | Matsushita Electric Ind Co Ltd | Lithium secondary battery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998038688A1 (en) * | 1997-02-28 | 1998-09-03 | Asahi Kasei Kogyo Kabushiki Kaisha | Nonaqueous secondary battery and method for manufacturing the same |
| US6387564B1 (en) | 1997-02-28 | 2002-05-14 | Asahi Kasei Kabushiki Kaisha | Non-aqueous secondary battery having an aggregation layer |
| JP2000082495A (en) * | 1998-09-04 | 2000-03-21 | Sony Corp | Solid electrolyte battery |
| CN116914227A (en) * | 2023-09-13 | 2023-10-20 | 厦门海辰储能科技股份有限公司 | Electrode assembly, energy storage device and electric equipment |
| CN116914227B (en) * | 2023-09-13 | 2023-12-26 | 厦门海辰储能科技股份有限公司 | Electrode assembly, energy storage device and electric equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2506572Y2 (en) | 1996-08-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |