JPH1021908A - Active material for battery, and battery - Google Patents
Active material for battery, and batteryInfo
- Publication number
- JPH1021908A JPH1021908A JP8195511A JP19551196A JPH1021908A JP H1021908 A JPH1021908 A JP H1021908A JP 8195511 A JP8195511 A JP 8195511A JP 19551196 A JP19551196 A JP 19551196A JP H1021908 A JPH1021908 A JP H1021908A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- active material
- hydrogen storage
- electrode
- storage alloy
- 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
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
- 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
【０００１】[0001]
【発明が属する技術分野】本発明は、電池用活物質およ
び電池、特に、水素吸蔵合金を含む電池用活物質および
そのような電池用活物質を用いた電池に関する。The present invention relates to an active material for a battery and a battery, and more particularly to an active material for a battery containing a hydrogen storage alloy and a battery using such an active material for a battery.
【０００２】[0002]
【従来の技術とその課題】水素の吸蔵と放出とを可逆的
に行うことが可能な水素吸蔵合金を用いた電極を負極と
し、カドミウムを含まない水酸化ニッケル電極を正極と
して用いたアルカリ蓄電池が知られている。この種のア
ルカリ蓄電池は、従来のニッケル−カドミウム蓄電池に
比べて高いエネルギー密度を有し、しかも低公害性であ
ることから、ポータブル機器用や電気自動車用の電源と
しての利用が期待されている。2. Description of the Related Art An alkaline storage battery using an electrode using a hydrogen storage alloy capable of reversibly storing and releasing hydrogen as a negative electrode and a nickel hydroxide electrode containing no cadmium as a positive electrode is known. Are known. This type of alkaline storage battery has a higher energy density than conventional nickel-cadmium storage batteries, and has low pollution, so that it is expected to be used as a power source for portable devices and electric vehicles.
【０００３】ところで、このようなアルカリ蓄電池は、
寒冷地や冬期などの低温下において、容量が著しく低下
し、結果的に電圧低下を引き起こす場合が多い。電池電
圧が低下した場合は、所要の電池特性が得られないた
め、当該電池を搭載した機器が正常に作動しないおそれ
がある。[0003] By the way, such an alkaline storage battery,
Under low temperatures, such as in a cold region or in winter, the capacity is significantly reduced, often resulting in a voltage drop. If the battery voltage decreases, the required battery characteristics cannot be obtained, and the device equipped with the battery may not operate normally.
【０００４】本発明の目的は、低温下における電池特性
を改善することにある。An object of the present invention is to improve battery characteristics at low temperatures.
【０００５】[0005]
【課題を解決するための手段】本発明に係る電池用活物
質は、イッテルビウムおよびイットリウムからなる群か
ら選ばれた少なくとも１つの元素の化合物と、水素吸蔵
合金とを含んでいる。ここで、当該電池用活物質は、例
えば、前記元素の化合物を０．２〜１．０重量％含んで
いる。The active material for a battery according to the present invention contains a compound of at least one element selected from the group consisting of ytterbium and yttrium, and a hydrogen storage alloy. Here, the active material for a battery contains, for example, 0.2 to 1.0% by weight of a compound of the element.
【０００６】また、本発明の電池用活物質は、例えば、
一酸化コバルトをさらに含んでいてもよい。この場合、
当該電池用活物質は、一酸化コバルトを例えば０．２〜
１．５重量％含んでいる。The active material for a battery according to the present invention is, for example,
It may further contain cobalt monoxide. in this case,
The battery active material may contain cobalt monoxide, for example, from 0.2 to
Contains 1.5% by weight.
【０００７】さらに、本発明の電池は、イッテルビウム
およびイットリウムからなる群から選ばれた少なくとも
１つの元素の化合物および水素吸蔵合金を含む負極用活
物質を用いた負極と、正極用活物質を用いた正極と、電
解質とを備えている。Furthermore, the battery of the present invention uses a negative electrode using a negative electrode active material containing a compound of at least one element selected from the group consisting of ytterbium and yttrium and a hydrogen storage alloy, and a positive electrode active material. It has a positive electrode and an electrolyte.
【０００８】[0008]
【発明の実施の形態】電池用活物質 本発明に係る電池用活物質は、上述のようにイッテルビ
ウムおよびイットリウムからなる群から選ばれた少なく
とも１つの元素の化合物と、水素吸蔵合金とを主に含ん
でいる。BEST MODE FOR CARRYING OUT THE INVENTION The active material for a battery according to the present invention mainly comprises a compound of at least one element selected from the group consisting of ytterbium and yttrium and a hydrogen storage alloy as described above. Contains.
【０００９】ここで用いられる上述の元素の化合物は、
特に限定されるものではないが、例えば水酸化化合物が
好ましい。なお、イッテルビウムの水酸化化合物は、Ｙ
ｂ（ＯＨ）3 で示される化合物であり、一方、イットリ
ウムの水酸化化合物は、Ｙ（ＯＨ）3 で示される化合物
である。これらの化合物は、それぞれ単独で用いられて
もよいし、混合して用いられてもよい。The compounds of the above-mentioned elements used herein are:
Although not particularly limited, for example, a hydroxyl compound is preferable. The ytterbium hydroxide compound is represented by Y
A compound represented by b (OH) 3 , while a hydroxylated compound of yttrium is a compound represented by Y (OH) 3 . These compounds may be used alone or as a mixture.
【００１０】一方、本発明で用いられる水素吸蔵合金
は、特に限定されるものではなく、従来からの電池用に
用いられている公知の種々のものである。水素吸蔵合金
としては、ミッシュメタル（Ｍｍ）を含む合金、例え
ば、ＭｍＮｉＡｌＣｏ系やＭｍＮｉＡｌＣｏＭｎ系の合
金を挙げることができる。なお、ミッシュメタルは、Ｌ
ａ、Ｃｅ、Ｐｒ、Ｎｄなどの希土類元素の複合体であ
り、市販されている。このような合金は、例えばミッシ
ュメタル、Ｎｉ、Ａｌ、ＣｏおよびＭｎを所定量秤量
し、これらを不活性ガス雰囲気下で高周波溶解炉を用い
て溶融させると製造することができる。On the other hand, the hydrogen storage alloy used in the present invention is not particularly limited, and may be various known ones used for conventional batteries. Examples of the hydrogen storage alloy include alloys containing misch metal (Mm), for example, MmNiAlCo-based and MmNiAlCoMn-based alloys. The misch metal is L
It is a composite of rare earth elements such as a, Ce, Pr, and Nd and is commercially available. Such an alloy can be produced, for example, by weighing a predetermined amount of misch metal, Ni, Al, Co, and Mn and melting them using an induction melting furnace in an inert gas atmosphere.
【００１１】なお、本発明に係る電池用活物質には、必
要に応じて一酸化コバルト（ＣｏＯ）をさらに含んでい
てもよい。本発明の電池用活物質がこのような一酸化コ
バルトをさらに含む場合は、当該活物質を採用した電池
の低温下における電池特性をより効果的に改善すること
ができる。The active material for a battery according to the present invention may further contain cobalt monoxide (CoO) if necessary. When the battery active material of the present invention further contains such cobalt monoxide, the battery characteristics of the battery employing the active material at low temperatures can be more effectively improved.
【００１２】本発明の電池用活物質は、上述の元素の化
合物を０．２〜１．０重量％含むのが好ましく、０．２
〜０．５重量％含むのがより好ましい。当該元素の化合
物の含有量が０．２重量％未満の場合は、当該電池用活
物質を用いた電池について、低温下における電池特性を
効果的に改善することができない場合がある。逆に、
１．０重量％を超える場合は、含有量に比例した効果が
得られずに経済的でないばかりではなく、却って電池容
量が低下し、電池の効率が損なわれる場合がある。The active material for a battery according to the present invention preferably contains the compound of the above-mentioned element in an amount of 0.2 to 1.0% by weight.
More preferably, the content is 0.5% by weight. When the content of the compound of the element is less than 0.2% by weight, it may not be possible to effectively improve the battery characteristics at a low temperature of the battery using the battery active material. vice versa,
If the content exceeds 1.0% by weight, the effect in proportion to the content cannot be obtained, which is not only economical, but also lowers the battery capacity and may impair the efficiency of the battery.
【００１３】また、本発明の電池用活物質が一酸化コバ
ルトを含有する場合、その含有量は０．２〜１．５重量
％に設定するのが好ましく、０．８〜１．５重量％に設
定するのがより好ましい。この含有量が０．８重量％未
満の場合は、一酸化コバルトを含有することによる効果
が得られない場合がある。逆に、１．５重量％を超える
場合は、含有量に比例した効果が得られずに経済的でな
いばかりではなく、却って電池容量が低下し、電池の効
率が損なわれる場合がある。When the active material for a battery of the present invention contains cobalt monoxide, its content is preferably set to 0.2 to 1.5% by weight, and more preferably 0.8 to 1.5% by weight. Is more preferably set to. If the content is less than 0.8% by weight, the effect of containing cobalt monoxide may not be obtained. On the other hand, when the content exceeds 1.5% by weight, the effect in proportion to the content is not obtained, so that not only is it not economical, but also the battery capacity is rather lowered and the efficiency of the battery is sometimes impaired.
【００１４】本発明の電池用活物質を製造する場合は、
上述の水素吸蔵合金の粉末を用意し、これに上述の元素
の化合物の粉末および必要に応じて一酸化コバルトの粉
末を添加して十分に混合する。こうして得られた電池用
活物質は、通常、カルボキシメチルセルロースなどの増
粘剤を加えてペースト状に調製され、電池用電極の基板
に塗布、充填される。When producing the active material for a battery of the present invention,
A powder of the above-described hydrogen storage alloy is prepared, and a powder of a compound of the above-described element and, if necessary, a powder of cobalt monoxide are added thereto and mixed well. The battery active material thus obtained is usually prepared into a paste by adding a thickener such as carboxymethylcellulose, and applied and filled on a substrate of a battery electrode.
【００１５】なお、上述の電池用活物質は、必要に応じ
て他の成分を含んでいてもよい。他の成分としては、例
えば、密閉型電池の内部圧力の上昇を抑制することを目
的として添加される、希土類元素の単体またはその化合
物を挙げることができる。The above-mentioned active material for a battery may contain other components as necessary. As another component, for example, a single element of a rare earth element or a compound thereof, which is added for the purpose of suppressing an increase in the internal pressure of the sealed battery, can be given.
【００１６】本発明に係る電池用活物質は、上述のよう
にイッテルビウムおよびイットリウムからなる群から選
ばれた少なくとも１つの元素の化合物を含んでいるの
で、低温下における電池特性、特に電池容量が改善され
た電池を実現することができる。Since the active material for a battery according to the present invention contains a compound of at least one element selected from the group consisting of ytterbium and yttrium as described above, the battery characteristics at low temperatures, particularly the battery capacity, are improved. Battery can be realized.
【００１７】電池 本発明に係る電池は、例えばニッケル水素電池であり、
負極、正極および電解質を主に備えている。このような
本発明の電池で用いられる負極は、上述の本発明に係る
電池用活物質のペーストを基材に塗布、充填したもので
ある。なお、基材としては、例えばニッケル穿孔鋼板が
用いられる。 Battery The battery according to the present invention is, for example, a nickel hydride battery,
It mainly comprises a negative electrode, a positive electrode and an electrolyte. The negative electrode used in such a battery of the present invention is one obtained by applying and filling the above-described paste of the active material for a battery according to the present invention to a base material. In addition, as a base material, a nickel perforated steel plate is used, for example.
【００１８】また、正極は、例えば、正極用活物質のペ
ーストを基材に塗布、充填したものである。ここで、正
極用活物質としては、例えば、亜鉛が固溶体化された高
密度水酸化ニッケル粉末を挙げることができる。一方、
基材としては、例えばニッケル繊維基板が用いられる。The positive electrode is obtained by, for example, applying and filling a base material with a paste of a positive electrode active material. Here, as the active material for the positive electrode, for example, a high-density nickel hydroxide powder in which zinc is made a solid solution can be given. on the other hand,
As the base material, for example, a nickel fiber substrate is used.
【００１９】さらに、電解質としては、アルカリ金属の
水酸化物、例えば水酸化カリウムや水酸化リチウムなど
が用いられる。なお、電解質は、電池の種類や形態に応
じて、固体状のもの、或いは水溶液状のものが用いられ
る。Further, as the electrolyte, a hydroxide of an alkali metal such as potassium hydroxide or lithium hydroxide is used. The electrolyte may be a solid electrolyte or an aqueous electrolyte depending on the type and form of the battery.
【００２０】なお、本発明の電池の大きさおよび形状
は、特に限定されるものではなく、例えば、角型や円筒
型などの種々に構成し得る。したがって、上述の負極、
正極および電解質を内臓するための容器は、目的とする
電池の大きさや形状に応じて種々のものを用いることが
できる。また、本発明の電池において、正極および負極
が互いに重ね合わされて折り畳まれたり巻回されている
場合は、正極と負極との接触を回避するためのセパレー
ターが用いられる。セパレーターとしては、絶縁性樹脂
の不織布、例えばポリアミド樹脂やポリプロピレン樹脂
の不織布を用いることができる。The size and shape of the battery of the present invention are not particularly limited, and may be variously configured, for example, a square type or a cylindrical type. Therefore, the negative electrode described above,
Various containers can be used as the container for housing the positive electrode and the electrolyte depending on the size and shape of the intended battery. In the battery of the present invention, when the positive electrode and the negative electrode are overlapped with each other and are folded or wound, a separator for avoiding contact between the positive electrode and the negative electrode is used. As the separator, a nonwoven fabric of an insulating resin, for example, a nonwoven fabric of a polyamide resin or a polypropylene resin can be used.
【００２１】本発明に係る上述の電池は、負極用の活物
質として上述の本発明に係るものを用いているので、低
温下での電池特性、特に電池容量が従来の電池に比べて
良好である。したがって、このような本発明の電池を用
いれば、冬期や寒冷地などの低温下においても機器を正
常に作動させることができる。Since the above-mentioned battery according to the present invention uses the above-mentioned battery according to the present invention as an active material for a negative electrode, the battery characteristics at low temperatures, particularly the battery capacity, are better than those of conventional batteries. is there. Therefore, by using such a battery of the present invention, the device can be normally operated even in a low temperature such as a winter or a cold region.
【００２２】[0022]
【実施例】実施例１ Ｌａ、Ｃｅ、ＰｒおよびＮｄなどの希土類元素の複合体
である市販のミッシュメタル（Ｍｍ）、並びにＮｉ、Ａ
ｌ、Ｃｏ、Ｍｎを所定量秤量し、これらを不活性ガス雰
囲気下で高周波溶解炉を用いて溶解してＭｍＮｉ3.8Ａ
ｌ0.3Ｃｏ0.7Ｍｎ0.2の組成の合金を作成した。【Example】Example 1 Composite of rare earth elements such as La, Ce, Pr and Nd
Commercially available misch metal (Mm), and Ni, A
l, Co, and Mn are weighed in predetermined amounts, and these are weighed in an inert gas atmosphere.
Melt using high-frequency melting furnace under ambient atmosphere3.8A
l0.3Co0.7Mn0.2An alloy having the following composition was prepared.
【００２３】次に、得られた合金を機械粉砕し、この合
金粉末にＹｂ（ＯＨ）3 粉末０．５重量％と一酸化コバ
ルト１．０重量％とを混合した。この混合物を乳鉢を用
いて十分に混ぜ合わせ、電池用活物質を得た。得られた
電池用活物質に増粘剤を加えてペースト状にし、このペ
ーストをニッケル穿孔鋼板に塗布、充填した。これを乾
燥後にプレスして電極を得た。Next, the obtained alloy was mechanically pulverized, and 0.5% by weight of Yb (OH) 3 powder and 1.0% by weight of cobalt monoxide were mixed with the alloy powder. This mixture was sufficiently mixed using a mortar to obtain an active material for a battery. A thickener was added to the obtained battery active material to form a paste, and the paste was applied and filled on a nickel-perforated steel sheet. This was dried and pressed to obtain an electrode.
【００２４】実施例２ Ｙｂ（ＯＨ）3 粉末０．５重量％に代えてＹ（ＯＨ）3
粉末０．５重量％を用い、他は実施例１と同様にして電
極を得た。 Example 2 Y (OH) 3 instead of 0.5% by weight of Yb (OH) 3 powder
An electrode was obtained in the same manner as in Example 1 except that 0.5% by weight of the powder was used.
【００２５】比較例１ Ｙｂ（ＯＨ）3 粉末を添加しない以外は実施例１と同様
にして電極を得た。 Comparative Example 1 An electrode was obtained in the same manner as in Example 1 except that the Yb (OH) 3 powder was not added.
【００２６】実施例３ 一酸化コバルトの使用量を０〜１．０重量％の範囲で変
更し、他は実施例１の場合と同様にして電極を得た。得
られた電極について、充放電サイクル試験を実施した。
この際、充電は０．１ＣｍＡで１６時間実施し、また、
放電は０．２ＣｍＡで０．１７Ｖまで行った。結果を図
１に示す。図１より、一酸化コバルトの含有量に比例し
て容量が高まることがわかる。なお、参照電極として
は、Ｃｄ／Ｃｄ（ＯＨ）2 極を用いた。 Example 3 An electrode was obtained in the same manner as in Example 1 except that the amount of cobalt monoxide used was changed in the range of 0 to 1.0% by weight. A charge / discharge cycle test was performed on the obtained electrode.
At this time, charging was performed at 0.1 CmA for 16 hours.
Discharge was performed at 0.2 CmA to 0.17 V. The results are shown in FIG. FIG. 1 shows that the capacity increases in proportion to the content of cobalt monoxide. Note that a Cd / Cd (OH) 2 electrode was used as a reference electrode.
【００２７】実施例４ 一酸化コバルトの使用量を０〜１．０重量％の範囲で変
更し、他は実施例２の場合と同様にして電極を得た。得
られた電極について、充放電サイクル試験を実施した。
なお、試験条件は実施例３の場合と同様に設定した。結
果を図１に示す。図１より、一酸化コバルトの含有量に
比例して容量が高まることがわかる。 Example 4 An electrode was obtained in the same manner as in Example 2 except that the amount of cobalt monoxide used was changed in the range of 0 to 1.0% by weight. A charge / discharge cycle test was performed on the obtained electrode.
The test conditions were set in the same manner as in Example 3. The results are shown in FIG. FIG. 1 shows that the capacity increases in proportion to the content of cobalt monoxide.
【００２８】実施例５ 高密度粉末水酸化ニッケル活物質のペーストをニッケル
繊維板に塗布、充填し、これを乾燥後にプレスして電極
を得た。得られた電極を正極に、また、実施例１で得ら
れた電極を負極にそれぞれ用い、さらに電解液として比
重が１．２８の水酸化カリウム水溶液を用いて公称容量
が２，１００ｍＡｈの密閉電池を作成した。 Example 5 A paste of a high-density powdered nickel hydroxide active material was applied to a nickel fiber plate, filled, dried, and pressed to obtain an electrode. A sealed battery having a nominal capacity of 2,100 mAh using the obtained electrode as a positive electrode and the electrode obtained in Example 1 as a negative electrode, and further using a potassium hydroxide aqueous solution having a specific gravity of 1.28 as an electrolytic solution. It was created.
【００２９】得られた電池について充放電サイクル試験
を実施し、５℃下での放電時間と電池電圧との関係を調
べた。なお、充放電サイクル試験においては、充電は
１．０ＣｍＡで１時間１２分実施し、また、放電は２．
０ＣｍＡで１．０Ｖまで行い、充電と放電との間の休止
時間を１時間に設定した。結果を図２に示す。また、得
られた電池を５℃から４５℃までの温度環境下におき、
電池容量の変化を調べた。結果を図３に示す。A charge / discharge cycle test was performed on the obtained battery, and the relationship between the discharge time at 5 ° C. and the battery voltage was examined. In the charge / discharge cycle test, charging was performed at 1.0 CmA for 1 hour and 12 minutes.
The operation was performed at 1.0 mA at 0 CmA, and the rest time between charging and discharging was set to 1 hour. The results are shown in FIG. Further, the obtained battery is placed in a temperature environment of 5 ° C. to 45 ° C.,
The change in battery capacity was examined. The results are shown in FIG.
【００３０】実施例６ 負極として実施例２で得られたものを用い、他は実施例
５の場合と同様にして電池を作成した。得られた電池に
ついて、実施例５の場合と同様にして放電時間と電池電
圧との関係および電池容量の変化を調べた。結果を図２
および図３に示す。 Example 6 A battery was prepared in the same manner as in Example 5 except that the negative electrode obtained in Example 2 was used. For the obtained battery, the relationship between the discharge time and the battery voltage and the change in the battery capacity were examined in the same manner as in Example 5. Figure 2 shows the results.
And FIG.
【００３１】比較例２ 負極として比較例１で得られたものを用い、他は実施例
５の場合と同様にして電池を作成した。得られた電池に
ついて、実施例５の場合と同様にして放電時間と電池電
圧との関係および電池容量の変化を調べた。結果を図２
および図３に示す。 Comparative Example 2 A battery was prepared in the same manner as in Example 5 except that the negative electrode obtained in Comparative Example 1 was used. For the obtained battery, the relationship between the discharge time and the battery voltage and the change in the battery capacity were examined in the same manner as in Example 5. Figure 2 shows the results.
And FIG.
【００３２】図２から、実施例５および６の場合は、比
較例２の場合に比べて電池電圧が低下しにくいことがわ
かる。また、図３から、２５℃を境として、比較例２の
場合は、実施例５、６に比べて低温下での電池容量が極
端に低下していることがわかる。言い替えると、実施例
５、６の場合は、比較例２に比べて２５℃以下での電池
容量が格段に良好なことがわかる。FIG. 2 shows that in the case of Examples 5 and 6, the battery voltage is less likely to decrease than in the case of Comparative Example 2. Also, from FIG. 3, it can be seen that in the case of Comparative Example 2 at 25 ° C., the battery capacity at low temperatures is extremely lower than in Examples 5 and 6. In other words, in the case of Examples 5 and 6, the battery capacity at 25 ° C. or lower is much better than that of Comparative Example 2.
【００３３】[0033]
【発明の効果】本発明の電池用活物質は、イッテルビウ
ムおよびイットリウムからなる群から選ばれた少なくと
も１つの元素の化合物を水素吸蔵合金に添加しているの
で、低温下における電池特性を改善することができる。According to the battery active material of the present invention, the compound of at least one element selected from the group consisting of ytterbium and yttrium is added to the hydrogen storage alloy, so that the battery characteristics at low temperatures can be improved. Can be.
【００３４】また、本発明に係る電池は、上述の本発明
に係る電池用活物質を負極に用いているので、低温下に
おける電池特性が良好である。The battery according to the present invention has good battery characteristics at low temperatures because the above-mentioned active material for a battery according to the present invention is used for the negative electrode.
【図１】実施例３および実施例４で得られた電極につい
ての一酸化コバルトの含有量と容量との関係を示す図。FIG. 1 is a graph showing the relationship between the content of cobalt monoxide and the capacity of the electrodes obtained in Examples 3 and 4.
【図２】実施例５、実施例６および比較例２で得られた
電池の５℃下での放電時間と電池電圧との関係を示す
図。FIG. 2 is a diagram showing the relationship between the discharge time at 5 ° C. and the battery voltage of the batteries obtained in Example 5, Example 6, and Comparative Example 2.
【図３】実施例５、実施例６および比較例２で得られた
電池についての電池容量と温度との関係を示す図。FIG. 3 is a diagram showing the relationship between the battery capacity and the temperature of the batteries obtained in Example 5, Example 6, and Comparative Example 2.
Claims (5)
る群から選ばれた少なくとも１つの元素の化合物と、 水素吸蔵合金と、を含む電池用活物質。An active material for a battery, comprising: a compound of at least one element selected from the group consisting of ytterbium and yttrium; and a hydrogen storage alloy.
含んでいる、請求項１に記載の電池用活物質。2. A compound of said element in an amount of 0.2 to 1.0% by weight.
The active material for a battery according to claim 1, comprising:
項１または２に記載の電池用活物質。3. The active material for a battery according to claim 1, further comprising cobalt monoxide.
％含んでいる、請求項３に記載の電池用活物質。4. The active material for a battery according to claim 3, comprising 0.2 to 1.5% by weight of said cobalt monoxide.
る群から選ばれた少なくとも１つの元素の化合物と、水
素吸蔵合金とを含む負極用活物質を用いた負極と、 正極用活物質を用いた正極と、 電解質と、を備えた電池。5. A negative electrode using a negative electrode active material containing a compound of at least one element selected from the group consisting of ytterbium and yttrium, and a hydrogen storage alloy; a positive electrode using a positive electrode active material; And a battery comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19551196A JP3598665B2 (en) | 1996-07-05 | 1996-07-05 | Active materials for batteries and batteries |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19551196A JP3598665B2 (en) | 1996-07-05 | 1996-07-05 | Active materials for batteries and batteries |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004135522A Division JP2004259707A (en) | 2004-04-30 | 2004-04-30 | Active material for battery, and battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1021908A true JPH1021908A (en) | 1998-01-23 |
| JP3598665B2 JP3598665B2 (en) | 2004-12-08 |
Family
ID=16342303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19551196A Expired - Fee Related JP3598665B2 (en) | 1996-07-05 | 1996-07-05 | Active materials for batteries and batteries |
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| Country | Link |
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| JP (1) | JP3598665B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1100141A1 (en) * | 1999-11-12 | 2001-05-16 | Matsushita Electric Industrial Co., Ltd. | Nickel-metal hydride storage battery |
| JP2006107966A (en) * | 2004-10-07 | 2006-04-20 | Sanyo Electric Co Ltd | Nickel-hydrogen storage battery |
| EP1727229A1 (en) * | 2005-05-26 | 2006-11-29 | Saft | Active material composition and alkaline electrolyte accumulator |
| WO2014156512A1 (en) * | 2013-03-27 | 2014-10-02 | プライムアースＥｖエナジー株式会社 | Method for manufacturing nickel-hydrogen storage battery, nickel-hydrogen storage battery, and method for estimating concentration of dissolved yttrium ions |
| JPWO2015045315A1 (en) * | 2013-09-30 | 2017-03-09 | 三洋電機株式会社 | Positive electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery using the same |
| KR20190074328A (en) | 2017-12-19 | 2019-06-28 | 에스아이에스 주식회사 | Resets path and speed of automated guided vehicles with possible collisions |
-
1996
- 1996-07-05 JP JP19551196A patent/JP3598665B2/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1100141A1 (en) * | 1999-11-12 | 2001-05-16 | Matsushita Electric Industrial Co., Ltd. | Nickel-metal hydride storage battery |
| JP2006107966A (en) * | 2004-10-07 | 2006-04-20 | Sanyo Electric Co Ltd | Nickel-hydrogen storage battery |
| EP1727229A1 (en) * | 2005-05-26 | 2006-11-29 | Saft | Active material composition and alkaline electrolyte accumulator |
| FR2886462A1 (en) * | 2005-05-26 | 2006-12-01 | Accumulateurs Fixes | ACTIVE MATERIAL COMPOSITION AND ALKALINE ELECTROLYTE BATTERY |
| US7820325B2 (en) | 2005-05-26 | 2010-10-26 | Saft | Alkaline electrolyte storage battery having an anode formed of an active material composition |
| WO2014156512A1 (en) * | 2013-03-27 | 2014-10-02 | プライムアースＥｖエナジー株式会社 | Method for manufacturing nickel-hydrogen storage battery, nickel-hydrogen storage battery, and method for estimating concentration of dissolved yttrium ions |
| JP2014192032A (en) * | 2013-03-27 | 2014-10-06 | Primearth Ev Energy Co Ltd | Method of manufacturing nickel hydrogen storage battery, nickel hydrogen storage battery, and method of estimating dissolution concentration of yttrium ion |
| JPWO2015045315A1 (en) * | 2013-09-30 | 2017-03-09 | 三洋電機株式会社 | Positive electrode active material for non-aqueous electrolyte secondary battery and non-aqueous electrolyte secondary battery using the same |
| KR20190074328A (en) | 2017-12-19 | 2019-06-28 | 에스아이에스 주식회사 | Resets path and speed of automated guided vehicles with possible collisions |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3598665B2 (en) | 2004-12-08 |
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