Battery heating system, battery pack, and electrical apparatus
US-2024429483-A1 · Dec 26, 2024 · US
Cordless tool system
US8963497B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8963497-B2 |
| Application number | US-201213405700-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 27, 2012 |
| Priority date | Mar 8, 2011 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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Abstract
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A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. The ratio of the discharging time to the charging time is approximately 25:35.
First claim
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What is claimed is: 1. A cordless tool system, comprising: a tool; a lithium based battery pack for supplying power to the tool; and a heat absorbing device operably coupled to the lithium based battery pack, wherein the heat absorbing device comprises a phase-change material, the phase-change material comprising a mixture of 80%-90% sodium acetate, 1%-5% sodium dodecyl benzene sulfonate, 1%-5% carboxymethyl cellulose, and 1%-5% sodium carbonate, wherein the tool has a power o…
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Frequently asked questions
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- What does patent US8963497B2 cover?
- A tool discharges one battery pack and a charger simultaneously charges another battery pack to provide for continuous and circular operation of the tool. The ratio of the discharging time to the charging time is approximately 25:35.
- Who is the assignee on this patent?
- Yang Dezhong, Zhang Qichun, Xu Haishen, and 3 more
- What technology area does this patent fall under?
- Primary CPC classification H02J7/50. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).