JPS63121272A - Chargeable electrochemical device - Google Patents
Chargeable electrochemical deviceInfo
- Publication number
- JPS63121272A JPS63121272A JP61266910A JP26691086A JPS63121272A JP S63121272 A JPS63121272 A JP S63121272A JP 61266910 A JP61266910 A JP 61266910A JP 26691086 A JP26691086 A JP 26691086A JP S63121272 A JPS63121272 A JP S63121272A
- Authority
- JP
- Japan
- Prior art keywords
- current collector
- positive electrode
- case
- carbon
- metal current
- 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.)
- Pending
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052751 metal Inorganic materials 0.000 claims abstract description 12
- 239000002184 metal Substances 0.000 claims abstract description 12
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000010936 titanium Substances 0.000 claims abstract description 6
- 229910000733 Li alloy Inorganic materials 0.000 claims abstract description 5
- 239000001989 lithium alloy Substances 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 5
- 239000011230 binding agent Substances 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 3
- 239000000956 alloy Substances 0.000 claims abstract description 3
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910003002 lithium salt Inorganic materials 0.000 claims abstract 2
- 159000000002 lithium salts Chemical class 0.000 claims abstract 2
- 239000004020 conductor Substances 0.000 claims description 3
- 239000008151 electrolyte solution Substances 0.000 claims description 2
- 239000003125 aqueous solvent Substances 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 2
- 239000006258 conductive agent Substances 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 6
- 239000012298 atmosphere Substances 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
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910052793 cadmium Inorganic materials 0.000 description 2
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 2
- 239000011162 core material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 241000272814 Anser sp. Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 229910001200 Ferrotitanium Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011356 non-aqueous organic solvent Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は移動用直流電源、バックアップ用電源などに用
いる充電可能な電気化学装置忙関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a rechargeable electrochemical device for use as a mobile DC power source, backup power source, or the like.
従来の技術
充電可能な電気化学装置として、正極に主に電気に重層
を利用した活性炭、負極にリチウム合金、電解液に非水
系の有機溶媒を用いた装置が知られている。BACKGROUND OF THE INVENTION As a rechargeable electrochemical device, a device is known that uses activated carbon, which mainly uses multilayer electricity, for the positive electrode, a lithium alloy for the negative electrode, and a non-aqueous organic solvent for the electrolyte.
形状はコイン・形のような偏平型のものが多いが、この
場合、ガスケットを装置のケース底面周縁部へ押し込み
、ケースの底面をガスケットの座とする構造が採られて
いる。このため正極はケースの底面とのみ接触するため
、正極とケースの電気的接触を十分に確保する必要があ
る。特許パルス放電のような強負荷放電を要求されるも
のにおいては、装置の内部抵抗をできるだけ下げる必要
がある。そのため、集電体としてケース内面にチタンあ
るいはステンレス鋼製の平板あるいはラス状金属板を電
気溶接し、ケース開口部の封口の際の加圧力によシ、正
極と集電体を密着させる構造を採っている。Most gaskets are flat, coin-shaped, and in this case, the gasket is pushed into the periphery of the bottom of the device's case, and the bottom of the case serves as a seat for the gasket. Therefore, since the positive electrode contacts only the bottom surface of the case, it is necessary to ensure sufficient electrical contact between the positive electrode and the case. In applications requiring heavy load discharge such as patent pulse discharge, it is necessary to reduce the internal resistance of the device as much as possible. Therefore, we created a structure in which a titanium or stainless steel flat plate or lath metal plate is electrically welded to the inner surface of the case as a current collector, and the positive electrode and current collector are brought into close contact by the pressure applied when sealing the case opening. I'm picking it up.
発明が解決しようとする問題点
この従来の構成からなる装置において、種々の調査を行
ったところ、高温雰囲気中で、装置に一定電圧を印加し
た状態で保存した場合の特性（以下、高温負荷特性と呼
ぶ）において、装置の内部抵抗の異常増加がみられ、電
気容量が著しく低下することが判明した。Problems to be Solved by the Invention We conducted various investigations on the device with this conventional configuration, and found that the characteristics (hereinafter referred to as high-temperature load characteristics) when stored in a high-temperature atmosphere with a constant voltage applied to the device ), an abnormal increase in the internal resistance of the device was observed, and it was found that the capacitance decreased significantly.
この理由として、長期に高電圧を印加した場合、金属集
電体の表面に酸化被膜等の絶縁被膜を形成し、内部抵抗
が上昇する。そして、その傾向は高温において著しいと
考えられる。The reason for this is that when a high voltage is applied for a long period of time, an insulating film such as an oxide film is formed on the surface of the metal current collector, and the internal resistance increases. This tendency is considered to be more pronounced at high temperatures.
本発明は、前述の問題点を改善し、従来の性能を損うこ
となく、高温負荷特性を向上させることを目的とする。The present invention aims to improve the above-mentioned problems and improve high-temperature load characteristics without impairing conventional performance.
問題点を解決するための手段
この問題点を解決するために、本発明はケース内面に溶
接した金属集電体の表面に、カーボンを導電材とする導
電性被膜を形成したものである。Means for Solving the Problems In order to solve this problem, the present invention forms a conductive film made of carbon as a conductive material on the surface of a metal current collector welded to the inner surface of the case.
作 用
この［を成によれば、金属集電体の表面を導電性被膜で
被覆するため、正極との接触面に絶縁性被膜を形成する
ことがない。その結果、正極とケースの接触が良好に保
たれ、高温負荷特性を向上させることができる。According to this method, since the surface of the metal current collector is coated with a conductive film, no insulating film is formed on the contact surface with the positive electrode. As a result, good contact between the positive electrode and the case is maintained, and high temperature load characteristics can be improved.
実施例
以下、本発明の実施例を第１図〜第４図を参照して説明
する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 4.
第１図は正極に活性炭、負極にリチウム合金を用いた充
電可能な電２化学装置を示す。図中１は正極端子を兼ね
たステンレス鋼製ケース、２はケースと同材料を打ち抜
き加工した負極端子を兼ねる封口板、３はケースと封口
板を絶縁するポリプロピレン製ガスケット、４は正極で
あり、活性炭粉末７０重量部、導電材であるアセチレン
ブラック１０重量部及びバインダーであるフッ素樹脂の
水性ディスパージョン（固形分比約６Ｑ％）を固形分で
２０重量部混練し、２本のロール間を通してシート状に
成型した後、芯材５となる厚さ０．４団のチタンラス板
に転写したものであシ、この後１５０℃の真空下で１２
時間乾燥した後、厚さ１．０ｍ＋ｎ にそろえ、直後１
４．０ｍのペレット状に打ち抜いた。６は正極集電体で
、チタンラス板を直径１４．０間の大きさに打ち抜き、
ケースの内面中央部にスポット溶接し、その表面を、水
ガラスをバインダーとした導電性カーボン塗料で被覆し
た。その後、ケース１とともに８６℃の真空下で１２時
間乾燥し、水分を十分に除去した。この正極集電体上に
前述の正極４を載置し、ケース開口部の封口の際の加圧
力により正極４と正極集電体６を一体化密着させた。FIG. 1 shows a rechargeable electrochemical device using activated carbon as a positive electrode and a lithium alloy as a negative electrode. In the figure, 1 is a stainless steel case that also serves as a positive electrode terminal, 2 is a sealing plate that is punched out of the same material as the case and serves as a negative electrode terminal, 3 is a polypropylene gasket that insulates the case and the sealing plate, and 4 is a positive electrode. 70 parts by weight of activated carbon powder, 10 parts by weight of acetylene black as a conductive material, and 20 parts by weight of an aqueous dispersion of fluororesin as a binder (solid content ratio approximately 6Q%) are kneaded, and the mixture is passed between two rolls to form a sheet. After molding into a shape, it was transferred to a titanium lath plate with a thickness of 0.4 to become the core material 5. After this, it was molded in a vacuum at 150°C for 12 hours.
After drying for an hour, arrange the thickness to 1.0m+n, and immediately after
It was punched into a 4.0 m pellet. 6 is a positive electrode current collector, which is punched out of a titanium lath plate to a size of 14.0 mm in diameter.
It was spot welded to the center of the inner surface of the case, and its surface was coated with conductive carbon paint using water glass as a binder. Thereafter, it was dried together with Case 1 under vacuum at 86° C. for 12 hours to sufficiently remove moisture. The above-mentioned positive electrode 4 was placed on this positive electrode current collector, and the positive electrode 4 and the positive electrode current collector 6 were brought into close contact with each other by applying pressure when sealing the case opening.
７は負極のリチウム合金で、鉛６０重量部、カドミウム
４７ｆｆｉ量部、リチウム３重量部をアルゴン雰囲気中
で融解合金化し、同雰囲気中で厚さ０．１門に圧延して
、ステンレス鋼製ネット８に転写した。7 is a lithium alloy for the negative electrode. 60 parts by weight of lead, 47 parts by weight of cadmium, and 3 parts by weight of lithium are melted and alloyed in an argon atmosphere, rolled to a thickness of 0.1 mm in the same atmosphere, and made into a stainless steel net. Transferred to 8.
その後、直径１６μｍに打ち抜き、封口板２の裏面にネ
ット８を溶接した。９はポリプロピレン製不識布からな
るセパレータ。Thereafter, it was punched out to a diameter of 16 μm, and a net 8 was welded to the back surface of the sealing plate 2. 9 is a separator made of non-woven polypropylene cloth.
また電解液にはグロピレンカーボネートと１．２−ジメ
トキシエタンとの等容積混合溶媒にホウフッ化リチウム
を１モル／ｊの割合で溶解したものを用いた。この電気
化学装置をＡとした。次に比較品として、前述の正極集
電体６に、導電性塗料を塗布していないチタンラスを用
いた従来構成の電気化学装置を作成し、これをＢとした
。また、ケース内面に金属集電体を用いず、直接前述の
導電性被膜を形成し、これを正極集電体とした構成の装
置を作成しこれをＣとした。The electrolytic solution used was one in which lithium borofluoride was dissolved in a mixed solvent of equal volume of glopylene carbonate and 1,2-dimethoxyethane at a ratio of 1 mol/j. This electrochemical device was designated as A. Next, as a comparative product, an electrochemical device having a conventional configuration was created using a titanium lath to which no conductive paint was applied as the positive electrode current collector 6, and this was designated as B. In addition, a device was created in which the above-mentioned conductive film was directly formed on the inner surface of the case without using a metal current collector, and this was used as a positive electrode current collector, and this was designated as C.
尚、装置の大きさは直径２０ 、０ｔｒｖｎ 、厚さ２
．０ｍｍで容量は１ｖ当たり１ｍＡｈである。The size of the device is 20mm in diameter, 0trvn, and 2mm in thickness.
．． At 0 mm, the capacity is 1 mAh per 1 volt.
また実施例として負極合金には鉛、カドミウムを用いた
が、他にリチウム吸蔵能力を持つビスマス、インジウム
、アルミニウム等を用いても同様に適用できる。Further, although lead and cadmium were used as the negative electrode alloy in the embodiment, other materials such as bismuth, indium, and aluminum having lithium storage capacity may also be used.
これらの電気化学装置の組立直後と６０℃雰囲気中で、
各装置に３ｖの定電圧を印加した状態で２０日、４０日
、６０日保存した後の各装置の内部抵抗、及び２０℃雰
囲気中において１０にΩの定抵抗放電を行い３ｖから２
ｖまでの放電容量を求めた。その結果を第２図、第３図
に示す。また組立直後において、２０℃雰囲気中で、１
６にΩ。Immediately after assembly of these electrochemical devices and in an atmosphere of 60℃,
The internal resistance of each device after being stored for 20, 40, and 60 days with a constant voltage of 3V applied to each device, and the internal resistance of each device after being stored for 20 days, 40 days, and 60 days with a constant voltage of 3V applied to each device, and the internal resistance of each device from 3V to 2
The discharge capacity up to v was determined. The results are shown in FIGS. 2 and 3. In addition, immediately after assembly, 1
Ω to 6.
６にΩ、１にΩの各抵抗値で定抵抗放電を行った場合の
３ｖから２ｖまでの放電容量を比較しその結果を第４図
に示す。各位はいずれも２０個の平均値である。The discharge capacity from 3v to 2v when constant resistance discharge was performed with each resistance value of 6Ω and 1Ω was compared, and the results are shown in FIG. Each position is the average value of 20 values.
第２図、第３図から、本発明の装置は従来の装置に比べ
、高温雰囲気中で一定電圧を臼加した状態で保存した場
合でも、内部抵抗の増加が小さくその結果、容量の劣下
が少ない。また、第４図から正極と集電体の密着性が非
常に良いため、強負荷放電においても優れている。From Figures 2 and 3, it can be seen that compared to conventional devices, the device of the present invention has a smaller increase in internal resistance even when stored under a constant voltage in a high temperature atmosphere, resulting in a decrease in capacity. Less is. Furthermore, as shown in FIG. 4, the adhesion between the positive electrode and the current collector is very good, so it is excellent even in heavy load discharge.
発明の効果
以上の説明から明らかなように、ケース内面に溶接した
金属集電体を導電性カーボン被膜で被覆することによシ
、従来の性能を損うことなく高温負荷特性を向上させる
ことができ、優れた電気化学装置を得ることができる。Effects of the Invention As is clear from the above explanation, by coating the metal current collector welded to the inner surface of the case with a conductive carbon film, the high temperature load characteristics can be improved without impairing the conventional performance. Therefore, an excellent electrochemical device can be obtained.
第１図は本発明の実施例における充電可能な電気化学装
置の縦断面図、第２図から第４図は本発明の実施例にお
ける電気化学装置の試験結果を示す図であ−る。
１・・・・・・ケース、２・・・・・・封口板、３・・
・・・・ガスケット、４・・・・・・正極、６・・・・
・・正極芯材、６・・・・・・正極集電体、７・・・・
・・負極、８・・・・・・負極集電体、９・・・・・・
セパレータ。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名ｆ−
グース
第２図
６θｔ」呆Ｊ１Ｂ嵜く（Ｂ）
第 ３ 図
６０”（、ａ、件’ＥＥ攻（Ｔ３＞
第４図FIG. 1 is a longitudinal sectional view of a rechargeable electrochemical device according to an embodiment of the present invention, and FIGS. 2 to 4 are diagrams showing test results of the electrochemical device according to an embodiment of the present invention. 1... Case, 2... Sealing plate, 3...
...Gasket, 4...Positive electrode, 6...
...Positive electrode core material, 6...Positive electrode current collector, 7...
...Negative electrode, 8...Negative electrode current collector, 9...
Separator. Name of agent: Patent attorney Toshio Nakao and 1 other person f-
Goose Fig. 2 6θt'' J1B Saki (B) Fig. 3 60'' (,a, case'EE attack (T3> Fig. 4)
Claims (3)
極と、リチウム塩を溶解した非水溶媒からなる電解液と
から構成される電気化学装置であって、ケース内面に溶
接された金属集電体を有し、この金属集電体の表面上に
、導電性被膜を有する充電可能な電気化学装置。(1) An electrochemical device consisting of a positive electrode made of activated carbon, a negative electrode made of a lithium alloy, and an electrolytic solution made of a non-aqueous solvent in which lithium salt is dissolved, with a metal current collector welded to the inner surface of the case. A rechargeable electrochemical device having a conductive coating on the surface of the metal current collector.
ムの単体、もしくはそれらの合金のいずれかよりなる特
許請求の範囲第１項記載の充電可能な電気化学装置。(2) The rechargeable electrochemical device according to claim 1, wherein the metal current collector is made of titanium, stainless steel, aluminum, or an alloy thereof.
カーボンを用いたコロイダルカーボンからなる特許請求
の範囲第１項記載の充電可能な電気化学装置。(3) The rechargeable electrochemical device according to claim 1, wherein the conductive film is made of colloidal carbon using water glass as a binder and carbon as a conductive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61266910A JPS63121272A (en) | 1986-11-10 | 1986-11-10 | Chargeable electrochemical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61266910A JPS63121272A (en) | 1986-11-10 | 1986-11-10 | Chargeable electrochemical device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63121272A true JPS63121272A (en) | 1988-05-25 |
Family
ID=17437362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61266910A Pending JPS63121272A (en) | 1986-11-10 | 1986-11-10 | Chargeable electrochemical device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63121272A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0292664U (en) * | 1989-01-10 | 1990-07-23 | ||
| US5464056A (en) * | 1992-12-21 | 1995-11-07 | Calsonic Corporation | Housingless type oil cooler and method for producing the same |
| KR19980059084A (en) * | 1996-12-30 | 1998-10-07 | 손욱 | Pretreatment method of the electrode plate for lithium battery |
| JP2005525674A (en) * | 2001-07-27 | 2005-08-25 | マサチューセッツ インスティテュート オブ テクノロジー | Battery structure, self-organizing structure, and related method |
| US8277975B2 (en) | 2000-10-20 | 2012-10-02 | Massachusetts Intitute Of Technology | Reticulated and controlled porosity battery structures |
| US8999571B2 (en) | 2007-05-25 | 2015-04-07 | Massachusetts Institute Of Technology | Batteries and electrodes for use thereof |
| US9065093B2 (en) | 2011-04-07 | 2015-06-23 | Massachusetts Institute Of Technology | Controlled porosity in electrodes |
| US10569480B2 (en) | 2014-10-03 | 2020-02-25 | Massachusetts Institute Of Technology | Pore orientation using magnetic fields |
| US10675819B2 (en) | 2014-10-03 | 2020-06-09 | Massachusetts Institute Of Technology | Magnetic field alignment of emulsions to produce porous articles |
-
1986
- 1986-11-10 JP JP61266910A patent/JPS63121272A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0292664U (en) * | 1989-01-10 | 1990-07-23 | ||
| US5464056A (en) * | 1992-12-21 | 1995-11-07 | Calsonic Corporation | Housingless type oil cooler and method for producing the same |
| US5513702A (en) * | 1992-12-21 | 1996-05-07 | Calsonic Corporation | Housingless type oil cooler and method for producing the same |
| US5590709A (en) * | 1992-12-21 | 1997-01-07 | Calsonic Corporation | Housingless type oil cooler and method for producing the same |
| KR19980059084A (en) * | 1996-12-30 | 1998-10-07 | 손욱 | Pretreatment method of the electrode plate for lithium battery |
| US7988746B2 (en) | 2000-10-20 | 2011-08-02 | A123 Systems, Inc. | Battery structures, self-organizing structures and related methods |
| US8206468B2 (en) | 2000-10-20 | 2012-06-26 | Massachusetts Institute Of Technology | Battery structures, self-organizing structures and related methods |
| US8241789B2 (en) | 2000-10-20 | 2012-08-14 | Massachusetts Institute Of Technology | Battery structures, self-organizing structures and related methods |
| US8277975B2 (en) | 2000-10-20 | 2012-10-02 | Massachusetts Intitute Of Technology | Reticulated and controlled porosity battery structures |
| JP2005525674A (en) * | 2001-07-27 | 2005-08-25 | マサチューセッツ インスティテュート オブ テクノロジー | Battery structure, self-organizing structure, and related method |
| US8999571B2 (en) | 2007-05-25 | 2015-04-07 | Massachusetts Institute Of Technology | Batteries and electrodes for use thereof |
| US9065093B2 (en) | 2011-04-07 | 2015-06-23 | Massachusetts Institute Of Technology | Controlled porosity in electrodes |
| US10164242B2 (en) | 2011-04-07 | 2018-12-25 | Massachusetts Institute Of Technology | Controlled porosity in electrodes |
| US10569480B2 (en) | 2014-10-03 | 2020-02-25 | Massachusetts Institute Of Technology | Pore orientation using magnetic fields |
| US10675819B2 (en) | 2014-10-03 | 2020-06-09 | Massachusetts Institute Of Technology | Magnetic field alignment of emulsions to produce porous articles |
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