Device for controlling alkali storage battery
US-2016315357-A1 · Oct 27, 2016 · US
Nickel-metal hydride battery
US2016285087A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016285087-A1 |
| Application number | US-201514836932-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 26, 2015 |
| Priority date | Mar 27, 2015 |
| Publication date | Sep 29, 2016 |
| Grant date | — |
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Abstract
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A nickel-metal hydride battery includes a positive electrode and a negative electrode, which includes a hydrogen-absorbing alloy that includes first and second hydrogen-absorbing alloys. The negative electrode has a capacitance including a negative electrode main body capacitance, which corresponds to a capacitance of the positive electrode, and a discharge reserve, which is a capacitance added to the negative electrode main body capacitance. The first hydrogen-absorbing alloy has a lower hydrogen equilibrium dissociation pressure than the second hydrogen-absorbing alloy and a higher pulverization capacity, which indicates how easy pulverization occurs, than the second hydrogen-absorbing alloy.
First claim
Opening claim text (preview).
1 . A nickel-metal hydride battery comprising: a positive electrode; and a negative electrode including a hydrogen-absorbing alloy that includes a first hydrogen-absorbing alloy and a second hydrogen-absorbing alloy, wherein the negative electrode has a capacitance including a negative electrode main body capacitance, which corresponds to a capacitance of the positive electrode, and a discharge reserve, which is a capacitance added to the negative electrode main body capacitance; the first hydrogen-absorbing alloy has a lower hydrogen equilibrium dissociation pressure than the second hydrogen-absorbing alloy and a higher pulverization capacity, which indicates how easy pulverization occurs, than the second hydrogen-absorbing alloy; the positive electrode has a state of charge with a lower limit value of 0% or greater; and a ratio of the first hydrogen-absorbing alloy relative to the entire hydrogen-absorbing alloy is less than a ratio obtained by adding a ratio of the discharge reserve relative to the capacitance of the negative electrode and a ratio of a capacitance corresponding to the lower limit value of the state of charge of the positive electrode in the negative electrode main body capacitance relative to the capacitance of the negative electrode. 2 . The nickel-metal hydride battery according to claim 1 , wherein the ratio of the first hydrogen-absorbing alloy relative to the entire hydrogen-absorbing alloy is greater than or equal to the ratio of the discharge reserve relative to the capacitance of the negative electrode. 3 . The nickel-metal hydride battery according to claim 1 , wherein the ratio of the first hydrogen-absorbing alloy relative to the entire hydrogen-absorbing alloy is less than the ratio of a capacitance of the discharge reserve relative to the capacitance of the negative electrode. 4 . The nickel-metal hydride battery according to claim 1 , wherein the lower limit value is the lower limit value of the state of charge of the positive electrode when the nickel-metal hydride battery is used as a power supply. 5 . The nickel-metal hydride battery according to claim 1 , wherein the lower limit value is 40%. 6 . The nickel-metal hydride battery according to claim 1 , wherein a difference in the hydrogen equilibrium dissociation pressure between the second hydrogen-absorbing alloy and the first hydrogen-absorbing alloy under a temperature of 45° C. is 0.01 MPa or greater. 7 . The nickel-metal hydride battery according to claim 1 , further comprising a resin case that accommodates the positive electrode and the negative electrode.
Assignees
Inventors
Classifications
Organic material · CPC title
Batteries in portable systems, e.g. mobile phone, laptop · CPC title
Electricity · mapped topic
- H01M4/383Primary
Hydrogen absorbing alloys · CPC title
Electricity · mapped topic
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Frequently asked questions
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- What does patent US2016285087A1 cover?
- A nickel-metal hydride battery includes a positive electrode and a negative electrode, which includes a hydrogen-absorbing alloy that includes first and second hydrogen-absorbing alloys. The negative electrode has a capacitance including a negative electrode main body capacitance, which corresponds to a capacitance of the positive electrode, and a discharge reserve, which is a capacitance added…
- Who is the assignee on this patent?
- Primearth Ev Energy Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/383. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).