JP2001006660A - Nonaqueous secondary battery - Google Patents
Nonaqueous secondary batteryInfo
- Publication number
- JP2001006660A JP2001006660A JP11179167A JP17916799A JP2001006660A JP 2001006660 A JP2001006660 A JP 2001006660A JP 11179167 A JP11179167 A JP 11179167A JP 17916799 A JP17916799 A JP 17916799A JP 2001006660 A JP2001006660 A JP 2001006660A
- Authority
- JP
- Japan
- Prior art keywords
- amount
- negative electrode
- positive electrode
- lithium
- anion
- 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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Classifications
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- 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
Landscapes
- Secondary Cells (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、非水二次電池に関
するものであり、特に炭素材料を負極に用いたリチウム
イオン電池に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-aqueous secondary battery, and more particularly to a lithium ion battery using a carbon material for a negative electrode.
【０００２】[0002]
【従来の技術】近年、電子機器の小型軽量化が急速に進
展している。それに伴い、それら電子機器の電源として
使用される電池についても、小型軽量化、高エネルギー
密度化の要求がますます増加してきている。2. Description of the Related Art In recent years, the reduction in size and weight of electronic devices has been rapidly progressing. Along with this, demands for smaller and lighter batteries and higher energy densities of batteries used as power supplies for these electronic devices are increasing more and more.
【０００３】このような要求を満たすものとして、リチ
ウムイオン電池が急速に普及しつつある。リチウムイオ
ン電池は、黒鉛などのリチウム吸蔵放出可能な炭素材料
を負極に用い、ＬｉＣｏＯ2 、ＬｉＮｉＯ2 、ＬｉＭｎ
Ｏ2 等のリチウムと遷移金属との複合酸化物を正極に用
いて構成されている。[0003] Lithium-ion batteries are rapidly spreading to satisfy such demands. Lithium-ion batteries use a carbon material capable of storing and releasing lithium such as graphite for the negative electrode, and use LiCoO 2 , LiNiO 2 , and LiMn.
It is configured using a composite oxide of lithium and a transition metal such as O 2 for the positive electrode.
【０００４】炭素材料を負極に用いたリチウムイオン電
池においては、最初の充電過程で、活物質であるリチウ
ムイオンが正極から負極へ供給される。しかし、次の放
電過程で負極から正極へ戻るリチウムイオンの量は、先
に正極から供給された量の約７０〜９０％である。これ
は、先に正極から供給されたリチウムイオンの約１０〜
３０％が、主に負極で生じる不可逆な化学反応によっ
て、不活性なリチウム化合物に変化するためである。こ
のように、最初の１サイクルの充放電過程で、負極で不
活性化するリチウムイオンのロス量を負極のリテンショ
ン量といい、この分、電池の容量が小さくなるという問
題があった。In a lithium ion battery using a carbon material for a negative electrode, lithium ions as an active material are supplied from a positive electrode to a negative electrode in a first charging step. However, the amount of lithium ions returning from the negative electrode to the positive electrode in the next discharge process is about 70 to 90% of the amount previously supplied from the positive electrode. This is about 10 to 10 of the lithium ions previously supplied from the positive electrode.
This is because 30% is changed to an inactive lithium compound mainly by an irreversible chemical reaction occurring at the negative electrode. As described above, in the charge / discharge process of the first one cycle, the loss amount of lithium ions inactivated at the negative electrode is called the retention amount of the negative electrode, and there has been a problem that the capacity of the battery is reduced accordingly.
【０００５】上記リチウムのロスを補う方策として、負
極にリチウムをあらかじめ吸蔵させておく方法がある。
特開平４―７３８６２号、特開平５−２３４６２２号に
は、負極に金属リチウムを接触させた状態で電池を組み
立て、ロス分を補う方法が示されている。また、特開昭
６３―２２８５７３号、特開平２―２６５１６７号に
は、ＭｏＯ3 やＬｉＭｎＯ2 のような、主活物質よりも
卑な電位でリチウムを放出する物質を正極に添加し、ロ
ス分を補う方法が示されている。As a measure for compensating for the loss of lithium, there is a method in which lithium is stored in the negative electrode in advance.
Japanese Patent Application Laid-Open Nos. 4-73662 and 5-234622 disclose a method of assembling a battery in a state in which metallic lithium is in contact with a negative electrode to compensate for the loss. Further, JP-A-63-228573 and JP-A-2-265167 disclose that a substance which releases lithium at a lower potential than the main active material, such as MoO 3 or LiMnO 2 , is added to the positive electrode, and the loss component is reduced. Is shown.
【０００６】一方、上記問題の解決とは目的が異なる
が、正極に導電性高分子を添加する方法が特開平６−２
７５３２３号、特開平１０−１８８９８５号に示されて
いる。On the other hand, although the purpose is different from the solution of the above problem, a method of adding a conductive polymer to the positive electrode has been disclosed in Japanese Patent Laid-Open No. 6-2 / 1994.
75323 and JP-A-10-188895.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、これら
の方法では工程が煩雑であり、炭素材料にあらかじめド
ープされているリチウムは空気中で不安定であるため取
り扱いが難しく、放出できるリチウム量が不十分となり
やすいといった問題があった。However, in these methods, the steps are complicated, and the lithium doped in advance in the carbon material is unstable in the air, so it is difficult to handle and the amount of lithium that can be released is insufficient. There was a problem that it was easy to become.
【０００８】本発明は上記問題点に鑑み、なされたもの
であって、負極が例えば炭素材料のようなリチウムを吸
蔵放出可能な物質、正極がリチウムを吸蔵放出可能な遷
移金属酸化物からなる非水二次電池において、特に同一
サイズにおいて従来電池に比べ放電容量の大きな電池を
提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and has been made in view of the above-mentioned problems. The negative electrode is made of a material capable of storing and releasing lithium such as a carbon material, and the positive electrode is formed of a transition metal oxide capable of storing and releasing lithium. An object of the present invention is to provide a water secondary battery having a larger discharge capacity than a conventional battery, particularly in the same size.
【０００９】[0009]
【課題を解決するための手段】本発明は、上記問題点を
解決するため、負極にリチウムを吸蔵放出可能な材料を
用い、正極にリチウムを吸蔵放出可能な遷移金属酸化物
を用いる電池において、該正極はアニオンを吸蔵する能
力を持つアニオン吸蔵物質を含み、該アニオン吸蔵物質
のアニオン吸蔵量は、負極のリチウムリテンション量と
電気量換算でおよそ等量であり、かつ、該アニオン吸蔵
量の等量を超える量の電解質を電池内に内蔵することを
特徴とする非水二次電池である。また、前記アニオン吸
蔵物質が、ポリアニリン、ポリピロール、ポリチオフェ
ン、ポリアセン、または活性炭のうちから選ばれた少な
くとも一種である非水二次電池である。また、前記遷移
金属酸化物が、リチウムとＣｏ、Ｎｉ、Ｍｎの中の少な
くとも１種を含む複合酸化物である非水二次電池であ
る。SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a battery using a material capable of inserting and extracting lithium as a negative electrode and a transition metal oxide capable of inserting and extracting lithium as a positive electrode. The positive electrode includes an anion storage material having an ability to store an anion. The anion storage amount of the anion storage material is approximately equivalent to the lithium retention amount of the negative electrode in terms of electric quantity, and A non-aqueous secondary battery characterized by incorporating an amount of electrolyte exceeding the amount in the battery. Further, in the non-aqueous secondary battery, the anion storage material is at least one selected from polyaniline, polypyrrole, polythiophene, polyacene, and activated carbon. Further, in the non-aqueous secondary battery, the transition metal oxide is a composite oxide containing lithium and at least one of Co, Ni, and Mn.
【００１０】即ち、負極で生じるリチウムのロスを補う
ため、ロス量に相当するリチウムを電解質として内在さ
せ、該電解質のリチウムカチオンと対を成すアニオンを
正極に取り込む構成にすることにより、上記課題を解決
しようとするものである。That is, in order to compensate for the loss of lithium generated in the negative electrode, the above problem is solved by incorporating lithium corresponding to the loss amount as an electrolyte and incorporating an anion paired with the lithium cation of the electrolyte into the positive electrode. That is what we are trying to solve.
【００１１】[0011]
【発明の実施の形態】図１は、本発明の実施の一形態を
示す電池の断面図である。正極１は、正極集電体である
アルミニウム箔２の面上に担持されている。負極３は、
負極集電体である銅箔４の面上に担持されている。セパ
レータ５は、ポリエチレンやポリプロピレン等の微多孔
フィルムであり、正極１と負極３の間に狭まれている。FIG. 1 is a sectional view of a battery showing an embodiment of the present invention. The positive electrode 1 is supported on a surface of an aluminum foil 2 which is a positive electrode current collector. The negative electrode 3 is
It is carried on the surface of a copper foil 4 which is a negative electrode current collector. The separator 5 is a microporous film such as polyethylene or polypropylene, and is narrowed between the positive electrode 1 and the negative electrode 3.
【００１２】正極１、負極３およびセパレータ５は電解
液を含んでいる。６は正極リード端子、７は負極リード
端子である。８は負極端子を兼ねるパッケージ、９は正
極端子、１０は安全弁である。The positive electrode 1, the negative electrode 3, and the separator 5 contain an electrolytic solution. Reference numeral 6 denotes a positive lead terminal, and 7 denotes a negative lead terminal. Reference numeral 8 denotes a package also serving as a negative electrode terminal, 9 denotes a positive electrode terminal, and 10 denotes a safety valve.
【００１３】正極１は、活物質、アニオン吸蔵物質、導
電剤およびバインダー樹脂で構成される。活物質は、例
えばＬｉＣｏＯ2 を用いることができる。導電剤は、例
えばアセチレンブラックを用いることができる。バイン
ダーは、例えばポリフッ化ビニリデン（ＰＶＤＦ）を用
いることができる。正極中に導電剤およびバインダーが
占める割合は、３〜１０重量％とした。アニオン吸蔵物
質は、単位重量当たりおよび単位体積当たりの吸蔵量が
多いものが望ましく、吸蔵時の電位が正極活物質の放電
電位よりも卑であり、負極集電体である銅の析出電位よ
りも貴であるもの、即ちＬｉ／Ｌｉ＋基準電位に対して
２．５〜３．５Ｖであるものが望ましい。具体的にはポ
リアニリン、ポリピロール、ポリチオフェン、ポリアセ
ン等の導電性ポリマーや活性炭等を用いることができ
る。アニオン吸蔵物質の添加量は、負極におけるリチウ
ムリテンション量とおよそ等量のアニオンを吸蔵できる
量とする。The positive electrode 1 is composed of an active material, an anion storage material, a conductive agent and a binder resin. As the active material, for example, LiCoO 2 can be used. As the conductive agent, for example, acetylene black can be used. As the binder, for example, polyvinylidene fluoride (PVDF) can be used. The proportion occupied by the conductive agent and the binder in the positive electrode was 3 to 10% by weight. It is desirable that the anion occluding substance has a large amount of occlusion per unit weight and per unit volume. A noble material, that is, a material having a voltage of 2.5 to 3.5 V with respect to Li / Li + reference potential is desirable. Specifically, conductive polymers such as polyaniline, polypyrrole, polythiophene, and polyacene, activated carbon, and the like can be used. The addition amount of the anion storage material is set to an amount capable of storing an anion equivalent to the amount of lithium retention in the negative electrode.
【００１４】さらに、これらの物質は、アニオンを吸蔵
した状態において良好な電子伝導性を有するため、正極
中に添加するべき導電材の役割を兼ね備えることができ
るので、その分アセチレンブラック等の導電剤の添加量
を低減させることができ、電池のエネルギー密度の増大
に有効である。Further, since these substances have good electron conductivity in the state where anions are occluded, they can also serve as a conductive material to be added to the positive electrode, and accordingly, a conductive agent such as acetylene black can be used. Can be reduced, which is effective for increasing the energy density of the battery.
【００１５】負極３は、リチウムを吸蔵放出可能な活物
質とバインダー樹脂で構成される。活物質は、例えば黒
鉛を用いることができる。バインダーは、例えばポリフ
ッ化ビニリデン（ＰＶＤＦ）を用いることができる。負
極中にバインダーが占める割合は、２〜８重量％とし
た。The negative electrode 3 is composed of an active material capable of inserting and extracting lithium and a binder resin. As the active material, for example, graphite can be used. As the binder, for example, polyvinylidene fluoride (PVDF) can be used. The ratio of the binder in the negative electrode was 2 to 8% by weight.
【００１６】電解液は、例えばエチレンカーボネート等
の環状炭酸エステル類、エチルメチルカーボネート等の
鎖状炭酸エステル類、γ―ブチロラクトン等のラクトン
類等からなる単独または混合溶媒に、六フッ化燐酸リチ
ウム（ＬｉＰＦ6 ）や四フッ化硼酸リチウム（ＬｉＢＦ
4 ）等のリチウム塩を溶解させた溶液を用いることがで
きる。The electrolytic solution may be a mixture of a cyclic carbonate such as ethylene carbonate, a chain carbonate such as ethyl methyl carbonate, a lactone such as γ-butyrolactone, or a mixed solvent comprising lithium hexafluorophosphate ( LiPF 6 ) and lithium tetrafluoroborate (LiBF)
A solution in which a lithium salt such as 4 ) is dissolved can be used.
【００１７】正極活物質および負極活物質の量は、充放
電電気量においておよそ等量を電池に内包している。負
極のリテンション量は、負極の材料物性や電解液の組成
等により左右されるが、黒鉛を負極活物質に用いた場合
には、少なくとも黒鉛の放電容量の５〜１５％である。
非晶質炭素材料を負極活物質に用いた場合には、約３０
％に達する場合がある。The amount of the positive electrode active material and the amount of the negative electrode active material are included in the battery in approximately equal amounts in terms of charge and discharge electricity. The retention amount of the negative electrode depends on the material properties of the negative electrode, the composition of the electrolytic solution, and the like, but when graphite is used as the negative electrode active material, it is at least 5 to 15% of the discharge capacity of graphite.
When an amorphous carbon material is used for the negative electrode active material, about 30
%.
【００１８】正極に添加するアニオン吸蔵物質の量は、
負極のリテンション量とおよそ等量のアニオンを吸蔵で
きる量とする。例えば、正極にＬｉＣｏＯ2 、負極に黒
鉛、アニオン吸蔵物質にポリアセンやポリアニリンを用
いた場合には、必要とするアニオン吸蔵物質の比率は正
極ＬｉＣｏＯ2 に対して７〜１８重量％である。The amount of the anion storage substance to be added to the positive electrode is
The amount is such that an anion equivalent to the amount of retention of the negative electrode can be absorbed. For example, when LiCoO 2 is used for the positive electrode, graphite is used for the negative electrode, and polyacene or polyaniline is used for the anion-occluding material, the required ratio of the anion-occluding material is 7 to 18% by weight based on the positive electrode LiCoO 2 .
【００１９】電解液中の電解質（リチウム塩）濃度は、
従来のリチウムイオン電池においては１Ｍ前後を用いて
いる。本発明電池においては、少なくとも上記負極のリ
テンション量を越える電解質を内包しなければならず、
従来電池の電解質量に上記リチウムロス量を加えた量を
内包することが望ましい。具体的には、１．５〜２．５
Ｍである。The electrolyte (lithium salt) concentration in the electrolyte is
A conventional lithium ion battery uses about 1M. In the battery of the present invention, it is necessary to include at least an electrolyte exceeding the retention amount of the negative electrode,
It is desirable to include the amount obtained by adding the amount of lithium loss to the electrolytic mass of the conventional battery. Specifically, 1.5 to 2.5
M.
【００２０】以上、正極活物質にＬｉＣｏＯ2 を用い、
負極活物質に黒鉛を用いた場合を例に挙げて説明した
が、本発明電池に適用できる正極活物質は、放電電位が
アニオン吸蔵物質の吸蔵電位よりも貴であればよく、特
に限定されるものではない。また負極についても、黒鉛
以外の炭素材料、金属酸化物、ポリマー材料等も用いる
ことができ、これらの記述に限定されるものではない。
電解液についても、高分子ゲルや高分子固体電解質をこ
れに代えて用いることができる。As described above, LiCoO 2 is used as the positive electrode active material,
Although the case where graphite is used as the negative electrode active material has been described as an example, the positive electrode active material applicable to the battery of the present invention is not particularly limited as long as the discharge potential is more noble than the storage potential of the anion storage material. Not something. Also for the negative electrode, carbon materials other than graphite, metal oxides, polymer materials, and the like can be used, and the present invention is not limited to these descriptions.
As the electrolytic solution, a polymer gel or a polymer solid electrolyte can be used instead.
【００２１】[0021]
【実施例】以下、実施例に基づき、本発明を説明する。The present invention will be described below with reference to examples.
【００２２】（本発明）正極は、１００重量部のＬｉＣ
ｏＯ2 、１０重量部のポリアニリンおよび２重量部のア
セチレンブラックをポリフッ化ビニリデンの溶液でペー
スト状とし、アルミニウム箔上に塗布し、乾燥した。負
極は、黒鉛をポリフッ化ビニリデンの溶液でペースト状
とし、銅箔上に塗布し、乾燥した。角形電池に組み込ん
だ後、電解液を注液した。用いた電解液は、γ- ブチロ
ラクトンとエチレンカーボネートを３対２の割合で混合
した溶媒に１．７Ｍの六フッ化燐酸リチウムを溶解した
ものである。電池サイズは、巾２２．５ｍｍ、高さ４
８．０ｍｍ、厚さ６．１ｍｍである。これを本発明電池
とする。(Invention) The positive electrode is composed of 100 parts by weight of LiC
oO 2 , 10 parts by weight of polyaniline and 2 parts by weight of acetylene black were made into a paste with a solution of polyvinylidene fluoride, applied on an aluminum foil, and dried. For the negative electrode, graphite was made into a paste with a solution of polyvinylidene fluoride, applied on a copper foil, and dried. After being incorporated in the prismatic battery, an electrolyte was injected. The electrolytic solution used was one in which 1.7 M lithium hexafluorophosphate was dissolved in a solvent in which γ-butyrolactone and ethylene carbonate were mixed at a ratio of 3: 2. Battery size is width 22.5mm, height 4
It is 8.0 mm and 6.1 mm thick. This is referred to as the battery of the present invention.
【００２３】（比較例）正極は、１００重量部のＬｉＣ
ｏＯ2 、および６重量部のアセチレンブラックをポリフ
ッ化ビニリデンの溶液でペースト状とし、アルミニウム
箔上に塗布し、乾燥した。負極は、黒鉛をポリフッ化ビ
ニリデンの溶液でペースト状とし、銅箔上に塗布し、乾
燥した。角形電池に組み込んだ後、電解液を注液した。
用いた電解液は、γ- ブチロラクトンとエチレンカーボ
ネートを３対２の割合で混合した溶媒に１．０Ｍの六フ
ッ化燐酸リチウムを溶解したものである。電池サイズ
は、巾２２．５ｍｍ、高さ４８．０ｍｍ、厚さ６．１ｍ
ｍである。これを比較電池とする。(Comparative Example) The positive electrode was 100 parts by weight of LiC
oO 2 and 6 parts by weight of acetylene black were pasted with a solution of polyvinylidene fluoride, applied on an aluminum foil, and dried. For the negative electrode, graphite was made into a paste with a solution of polyvinylidene fluoride, applied on a copper foil, and dried. After being incorporated in the prismatic battery, an electrolyte was injected.
The electrolytic solution used was prepared by dissolving 1.0 M lithium hexafluorophosphate in a solvent in which γ-butyrolactone and ethylene carbonate were mixed at a ratio of 3: 2. Battery size is width 22.5mm, height 48.0mm, thickness 6.1m
m. This is a comparative battery.
【００２４】上記二つの電池を充放電試験に供した。充
電条件は、定電流定電圧充電、２００ｍＡ、４．２Ｖ、
５時間とし、放電条件は、電流２００ｍＡ、終止電圧
２．７Ｖとした。試験温度は室温とした。１０サイクル
目の放電容量を比較して表１に示す。The above two batteries were subjected to a charge / discharge test. The charging conditions were constant current and constant voltage charging, 200 mA, 4.2 V,
5 hours, and the discharge conditions were a current of 200 mA and a cutoff voltage of 2.7 V. The test temperature was room temperature. Table 1 shows a comparison of the discharge capacity at the tenth cycle.
【００２５】[0025]
【表１】 [Table 1]
【００２６】本発明では、初期充電において負極で生じ
るリチウムロスを電池に内包するリチウム塩で補う。リ
チウム塩は電解質として電解液に溶解した状態では容積
をとらず、正極に内包されるアニオン吸蔵物質が導電剤
の役目を兼ね備えるので導電剤の比率を低減でき、その
分活物質充填量が大きくなり、従来電池に比べ、電池の
放電容量を大きくすることができる。In the present invention, lithium loss generated at the negative electrode during initial charging is supplemented by a lithium salt contained in the battery. Lithium salt does not take up volume when dissolved in the electrolyte as an electrolyte, and the anion-occluding substance contained in the positive electrode also functions as a conductive agent, so the ratio of the conductive agent can be reduced, and the amount of the active material charged increases. Further, the discharge capacity of the battery can be increased as compared with the conventional battery.
【００２７】さらに、従来電池では、過放電されると、
負極集電体である銅が溶解し、正極に銅がデンドライト
状に析出し、電池の短絡を引き起こす恐れがあった。し
かしながら本発明電池では、過放電されると、負極集電
体である銅が溶解するものの、正極ではアニオン吸蔵物
質がアニオンを放出し終わるまで銅の析出が起こらず、
短絡を引き起こしにくいので、安全面でも有利である。
また部品、製造工程に大きな変更を加えること無く電気
的特性の優れた電池を提供できる。Further, in the conventional battery, when overdischarged,
Copper, which is a negative electrode current collector, was dissolved, and copper was deposited on the positive electrode in a dendrite shape, possibly causing a short circuit of the battery. However, in the battery of the present invention, when overdischarged, although the copper serving as the negative electrode current collector is dissolved, copper deposition does not occur in the positive electrode until the anion-occluding substance has completely released the anion,
Since a short circuit is unlikely to occur, it is advantageous in terms of safety.
Also, a battery having excellent electrical characteristics can be provided without making significant changes in parts and manufacturing processes.
【００２８】[0028]
【発明の効果】以上詳述した如く、本発明は、電気的特
性が優れかつ安全な非水二次電池を従来と同様の部品を
適用し、大きな製造工程の変更を加えずに製造すること
ができるので、工業的価値は極めて大である。As described in detail above, the present invention is to manufacture a non-aqueous secondary battery having excellent electrical characteristics and safety by using the same parts as before and without making a major change in the manufacturing process. Therefore, the industrial value is extremely large.
【図１】本発明の実施の１形態を示す図である。FIG. 1 is a diagram showing one embodiment of the present invention.
１ 正極 ３ 負極 1 positive electrode 3 negative electrode
Claims (3)
用い、正極にリチウムを吸蔵放出可能な遷移金属酸化物
を用いる電池において、該正極はアニオンを吸蔵する能
力を持つアニオン吸蔵物質を含み、該アニオン吸蔵物質
のアニオン吸蔵量は、負極のリチウムリテンション量と
電気量換算でおよそ等量であり、かつ、該アニオン吸蔵
量の等量を超える量の電解質を電池内に内蔵することを
特徴とする非水二次電池。1. A battery using a material capable of storing and releasing lithium for a negative electrode and a transition metal oxide capable of storing and releasing lithium for a positive electrode, wherein the positive electrode includes an anion storing substance having an ability to store and store anions. The anion storage amount of the anion storage material is approximately equivalent to the amount of lithium retention of the negative electrode in terms of the amount of electricity, and an amount of electrolyte exceeding the equivalent amount of the anion storage amount is incorporated in the battery. Non-aqueous secondary battery.
ン、ポリピロール、ポリチオフェン、ポリアセン、およ
び活性炭のうちから選ばれた少なくとも一種である請求
項１記載の非水二次電池。2. The non-aqueous secondary battery according to claim 1, wherein the anion storage substance is at least one selected from polyaniline, polypyrrole, polythiophene, polyacene, and activated carbon.
ｏ、Ｎｉ、Ｍｎの中の少なくとも１種を含む複合酸化物
である請求項１又は２記載の非水二次電池。3. The method according to claim 2, wherein the transition metal oxide is lithium and C
3. The non-aqueous secondary battery according to claim 1, which is a composite oxide containing at least one of o, Ni, and Mn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11179167A JP2001006660A (en) | 1999-06-25 | 1999-06-25 | Nonaqueous secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11179167A JP2001006660A (en) | 1999-06-25 | 1999-06-25 | Nonaqueous secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001006660A true JP2001006660A (en) | 2001-01-12 |
Family
ID=16061120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11179167A Pending JP2001006660A (en) | 1999-06-25 | 1999-06-25 | Nonaqueous secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001006660A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009529222A (en) * | 2006-03-03 | 2009-08-13 | カリフォルニア・インスティテュート・オブ・テクノロジー | Fluoride ion electrochemical cell |
| US8377586B2 (en) | 2005-10-05 | 2013-02-19 | California Institute Of Technology | Fluoride ion electrochemical cell |
| JP2013145758A (en) * | 2006-03-03 | 2013-07-25 | California Inst Of Technology | Fluoride ion electrochemical cell |
| JP2017514278A (en) * | 2014-07-22 | 2017-06-01 | ジョン イー． スタウファーＪｏｈｎ Ｅ． Ｓｔａｕｆｆｅｒ | Lithium storage battery |
-
1999
- 1999-06-25 JP JP11179167A patent/JP2001006660A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8377586B2 (en) | 2005-10-05 | 2013-02-19 | California Institute Of Technology | Fluoride ion electrochemical cell |
| US8968921B2 (en) | 2005-10-05 | 2015-03-03 | California Institute Of Technology | Fluoride ion electrochemical cell |
| JP2009529222A (en) * | 2006-03-03 | 2009-08-13 | カリフォルニア・インスティテュート・オブ・テクノロジー | Fluoride ion electrochemical cell |
| JP2013145758A (en) * | 2006-03-03 | 2013-07-25 | California Inst Of Technology | Fluoride ion electrochemical cell |
| JP2017514278A (en) * | 2014-07-22 | 2017-06-01 | ジョン イー． スタウファーＪｏｈｎ Ｅ． Ｓｔａｕｆｆｅｒ | Lithium storage battery |
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