KR970060553A - Nickel electrode active material, production method thereof, and nickel electrode employing the same - Google Patents

Nickel electrode active material, production method thereof, and nickel electrode employing the same Download PDF

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Publication number
KR970060553A
KR970060553A KR1019960001025A KR19960001025A KR970060553A KR 970060553 A KR970060553 A KR 970060553A KR 1019960001025 A KR1019960001025 A KR 1019960001025A KR 19960001025 A KR19960001025 A KR 19960001025A KR 970060553 A KR970060553 A KR 970060553A
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South Korea
Prior art keywords
nickel
nickel electrode
active material
electrode active
precipitate
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KR1019960001025A
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Korean (ko)
Inventor
손영수
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김광호
삼성전자 주식회사
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Priority to KR1019960001025A priority Critical patent/KR970060553A/en
Publication of KR970060553A publication Critical patent/KR970060553A/en

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Abstract

본 발명은 니켈을 기준으로 하여 1~10원자%의 알루미늄과 1~10원자%의 코발트가 함유되어 있는 수산화니켈과, 이를 기준으로 하여 1 내지 20중량%의 전도성 향상제를 포함하고 있는 것을 특징으로 하는 니켈 전극 활물질, 그 제조방법 및 이를 채용하고 있는 니켈 전극을 제공한다. 본 발명에 따르면, 충전효율이 증가됨과 동시에 반복적인 충방전시 내압 상승이 억제되고 방전용량이 우수한 니켈전극을 얻을 수 있다.The present invention is characterized by comprising nickel hydroxide containing 1 to 10 atomic% of aluminum and 1 to 10 atomic% of cobalt based on nickel and 1 to 20% by weight of a conductivity enhancer based thereon And a nickel electrode employing the nickel electrode active material. According to the present invention, it is possible to obtain a nickel electrode having an increased charging efficiency, suppressing an increase in internal pressure during repetitive charging and discharging, and excellent discharge capacity.

Description

니켈 전극 활물질, 그 제조방법 및 이를 채용하고 있는 니켈 전극Nickel electrode active material, production method thereof, and nickel electrode employing the same

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.

제1도는 실시예 및 비교예에 따라 제조된 니켈아연전지의 방전용량에 따른 포텐셜을 도시한 도면이다.FIG. 1 is a view showing potentials according to discharge capacities of a nickel zinc battery produced according to Examples and Comparative Examples. FIG.

제2도는 실시예 및 비교예에 따라 제조된 니켈아연전지의 싸이클 횟수에 따른 내압변화를 도시한 그래프이다.FIG. 2 is a graph showing changes in internal pressure according to the number of cycles of a nickel zinc battery produced according to Examples and Comparative Examples.

Claims (6)

니켈을 기준으로 하여 1~10원자%의 알루미늄과1~10원자%의 코발트가 함유되어 있는 수산화니켈과, 이를 기준으로 하여 1 내지 20중량%의 전도성 향상제를 포함하고 있는 것을 특징으로 하는 니켈 전극 활물질.A nickel hydroxide containing 1 to 10 atomic% of aluminum and 1 to 10 atomic% of cobalt based on nickel and 1 to 20% by weight of a conductivity enhancer based on the nickel hydroxide; Active material. 제1항에 있어서, 상기 전도성 향상제가 Co, Co(OH)2및 CoO로 이루어진 군으로부터 선택되는 것을 특징으로 하는 니켈 전극 활물질.The nickel electrode active material according to claim 1, wherein the conductivity enhancer is selected from the group consisting of Co, Co (OH) 2 and CoO. 질산니켈과, 이를 기준으로 하여 1내지 10몰%의 질산알루미늄과 1 내지 10몰%의 질산코발트를 혼합하는 단계; 수산화칼륨과 탄산칼륨의 4 : 1 내지 14 : 1 몰비의 혼합 수용액에 상기 혼합물을 적하하고, 혼합물의 pH를 10 내지 12로 유지하여 수산화니켈을 석출시키는 단계; 상기 석출물을 건조, 분쇄한 다음, 이를 기준으로 하여 1 내지 20중량%의 전도성 향상제와 혼합하는 단계를 포함하는 것을 특징으로 하는 니켈 전극 활물질의 제조방법.Mixing nickel nitrate with 1 to 10 mol% aluminum nitrate and 1 to 10 mol% cobalt nitrate based on the same; Dropping the mixture into an aqueous mixed solution of potassium hydroxide and potassium carbonate in a molar ratio of 4: 1 to 14: 1, and maintaining the pH of the mixture at 10 to 12 to precipitate nickel hydroxide; And drying and pulverizing the precipitate, and mixing the precipitate with a conductive enhancer of 1 to 20 wt% based on the dried precipitate. 제3항에 있어서, 상기 수산화니켈을 석출시키는 온도가 60~80℃인 것을 특징으로 하는 니켈 전극 활물질의 제조방법.The method of manufacturing a nickel electrode active material according to claim 3, wherein the nickel hydroxide is precipitated at a temperature of 60 to 80 ° C. 제3항에 있어서, 상기 전도성 향상제가 Co, Co(OH)2및 CoO로 이루어진 군으로부터 선택되는 것을 특징으로 하는 니켈 전극 활물질의 제조방법.The method according to claim 3, wherein the conductivity enhancer is selected from the group consisting of Co, Co (OH) 2 and CoO. 제3항 내지 제5항중 어느 한 항에 따라 제조된 니켈 전극 활물질을 채용하고 있는 니켈 전극.A nickel electrode employing a nickel electrode active material produced according to any one of claims 3 to 5. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: It is disclosed by the contents of the first application.
KR1019960001025A 1996-01-18 1996-01-18 Nickel electrode active material, production method thereof, and nickel electrode employing the same KR970060553A (en)

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KR1019960001025A KR970060553A (en) 1996-01-18 1996-01-18 Nickel electrode active material, production method thereof, and nickel electrode employing the same

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KR1019960001025A KR970060553A (en) 1996-01-18 1996-01-18 Nickel electrode active material, production method thereof, and nickel electrode employing the same

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101982546B1 (en) * 2017-12-27 2019-05-27 울산과학기술원 Manufacturing method of cathode of the Na secondary battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101982546B1 (en) * 2017-12-27 2019-05-27 울산과학기술원 Manufacturing method of cathode of the Na secondary battery

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