Apple Inc. (Cupertino, CA)
Cathode active materials are used to store and release cations within lithium batteries. These cathode active substances can comprise transition metal oxides as well as phosphates. These are employed to exchange lithium cations with an electrolyte. Transition metal oxides and phosphates with superior performances as cathode-active substances are, however, increasingly reaching their performance limits. To enable lithium batteries with more energy density, one way is to increase the thickness of the cathode. Cathodes with thicker walls are proven to enhance cell polarization as well as the underutilization of active materials. Electronic conductivity influences the first while the dispersion of lithium ions into active materials may influence the latter. Therefore, it is still essential to create cathode material that meets the requirements for the thickness of (5-50 um for electrolyte that is solid) and ultra-thick (>150 um for liquid electrolyte)cathodes in addition to allowing high energy density and high-rate capability.
Herein are disclosed ways to make a cathode that can be used in the lithium-ion battery. They include lithium transition-metal-based particles made from lithium transition metal oxides and phosphates. In addition silicon carbideparticles located at the boundaries of the grains of lithium transition metal-based particles create conductor pathways.
Every silicon carbide particle may have a length less than 100 nanometers.
The silicon carbide particles could be less than 10 wt. percent of the cathode material.
The silicon carbide particles may not be more than 1 wt. The cathode materials comprise a .
The silicon carbide particles can have an aspect ratio of 1 to 25.
Nanofiber particles are made from silicon carbide particles.
The aspect ratio of the nanofiber silicon carbide particles may range between 5 to 25 including.
The cathode material disclosed herein may have a pore volume of between 0 and 50 percent.
The cathode materials and lithium batteries are disclosed in this document. The lithium battery could be a lithium-metal battery with one or more lithium metal batteries. The lithium ion battery may comprise one or more lithium-ion cells.Click here to view the patent on USPTO website.
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What is a patent?
A patent is granted by the government to protect an invention. It grants the inventor the rights to develop, use and market the invention. Society gains when new technologies are brought to the market. The benefits may be direct terms, as it can allow individuals to achieve previously impossible things. Or indirectly, through the economic opportunities (business growth and employment) that the innovation offers.
Many drug companies and university researchers seek protection under patents for their research and developments. Patents may cover a physical or abstract product or process, or the method or composition of material unique to the field. Patent protection is granted to any invention that is valuable, novel, and not yet known by other people in the same field.
Patents give inventors a chance to be recognized for commercially viable inventions. They provide a reason for inventors to come up with new ideas. Patents enable inventors and small companies to know that there is an excellent chance that they will be paid back for their time, effort, and money invested in the development of technology. They can make a living by their work.
Businesses with the ability to:
Create and protect innovative products and services;
Improve the value, the popularity, and appeal of your products market;
Make your company and products stand out from others;
Get technical and business information.
Beware of the possibility of accidentally making use of proprietary content created by third parties or losing important data, creative outputs, or other creative output.
Patents convert knowledge of the inventor into an asset that can be sold, which opens up new opportunities for employment creation through joint ventures and licensing.
Small businesses that have patent protection are more attractive to investors in the commercialization of technology.
Patenting may lead to innovative ideas and inventions. This information could encourage innovation and may qualify for patent protection.
Patents can be used to stop untrustworthy third parties from profiting from the invention’s efforts.
Commercially successful patent-protected technology revenues can be used to finance the development of technology through research and development (R&D), which will boost the likelihood of improved technology in the near future.
It is possible to use the intellectual property rights of your company to convince investors and lenders that your product has real commercial potential. One powerful patent may provide numerous financing options. Patents can be used along with other IP assets as collateral or security to secure financing. You can also show investors your patent assets to increase company valuation. Forbes and other sources have pointed out that each patent can increase anywhere from $500,000 to one million dollars to your company’s valuation.
A properly-crafted business plan is vital for start-ups. It must be built on IP and demonstrate the way your product or service is distinctive. Investors will also be impressed if you can demonstrate that your IP rights are secured or is in the process of becoming secure and that they support your business strategy.
It is important to keep your invention secret until you submit for patent protection. The public disclosure of an invention before filing it is often detrimental to its novelty and render it unpatentable. Disclosures that are filed prior to filing, like for investors, test marketing, or other business partners should be done only after signing a confidentiality contract.
There are several types of patents and knowing them is essential to protecting your invention. Patents for utility cover processes and machine creations. Design patents cover ornamental designs. Utility patents are the best because they shield the proprietor from copycats and other competition. They are typically issued to improve or alter existing inventions. Utility patents can also be used to enhance or modify existing inventions. For example, a procedure patent will be able to cover actions or methods for performing one specific thing, while chemical compositions are a mixture of ingredients.
How long will a patent last? While utility patents are valid up to 20 years from their initial filing, they are able to be extended through delay in the Patent Office.
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When drafting an application for patents it is recommended to conduct an internet search for patents, since the search will give you an understanding of other people’s ideas. This allows you to restrict the potential of your invention. You can also discover the current latest developments in your area of invention. This will help you to know the extent of your invention as well as prepare you for filing the patent application.
How to Search for Patents
Patent searches are the first step towards obtaining your patent. You can do a google patent search or do a USPTO search. Once the patent application is filed, the item covered by the application can be referred to as patent-pending and you will be able to locate the patent application online on the public pair. After the patent office has approved the patent application, you will be able to conduct a patent number search to locate the issued patent. Your product will now be patented. Alongside the USPTO search engine, you may also use other search engines like espacenet, which is described below. A patent lawyer or patent attorney can advise you on the process. Patents granted in the United States are granted by the US trademark and patent office, also known as the United States patent office and trademark office. The office also examines trademark applications.
Are you interested in similar patents? These are the steps:
1. Brainstorm terms that describe your invention, based on its purpose, composition, and use.
Write down a concise and precise explanation of your invention. Avoid using generic terms like “device,” “process,” and “system.” Think about synonyms for the terms you picked initially. Also, keep track of important technical terms as well as key words.
To help you recognize the key words and concepts, try the questions below.
- What is the goal of the invention? Is it a utilitarian device or an ornamental design?
- Is inventing a method to make something or carry out some function? Is it an item?
- What is the structure of the invention? What is the physical composition of the invention?
- What’s the purpose of this invention?
- What are the technical terms and keywords that describe an invention’s nature? To assist you in finding the correct terms, consult a technical dictionary.
2. These terms allow you to search for relevant Cooperative Patent Classifications at Classification Search Tool. If you are unable to find the right classification for your invention, go through the Schemas of classes (class schedules). Think about substituting the words you use for describing your invention, if you do not get any results from the Classification Text Search with synonyms such as the terms you used in step 1.
3. Check 3. Check the CPC Classification Definition for confirmation of the CPC classification you found. The hyperlink to a CPC classification definition is given if the chosen classification title has a blue box that includes “D” to the left. CPC classification definitions will help identify the scope of the classification which is why you can be sure to select the most relevant. Additionally, these definitions can include some tips for searching and other information which could be helpful for further research.
4. Find patent documents that have the CPC classification from the Patents Full-Text and Image Database. You can search and select the relevant patent publications by choosing to focus first on abstract and the drawings that are representative.
5. This selection of patent publications is the best to check for similarities to your invention. Take note of the claims and specifications. You may find additional patents by referring to the patent examiner as well as the applicant.
6. It is possible to find patent applications published in the past that fit the CPC classification you picked in Step 3. You can use the same strategy of searching in Step 4 to narrow your search results to the most relevant patent applications through the abstract and representative drawings on each page. After that, you must review the patent applications that have been published carefully and pay particular attention to the claims and other drawings.
7. Find additional US patent publications using keyword searching in PatFT or AppFT databases, classification searches of non-U.S. patents according to below, and searching non-patent publications of inventions with web search engines. Here are some examples:
- Add keywords to your search. Keyword searches may turn up documents that are not well-categorized or have missed classifications during Step 2. For example, US patent examiners often supplement their classification searches with keyword searches. Think about the use of technical engineering terminology rather than everyday words.
- Search for foreign patents using the CPC classification. Then, re-run the search using international patent office search engines such as Espacenet, the European Patent Office’s worldwide patent publication database of over 130 million patent publications. Other national databases include:
- European Patent Office (EPO) provides esp@cenet to access a network of Europe’s patent databases with access to machine translation of European patents.
- Japan Patent Office (JPO) – with access to machine translations of Japanese patents.
- World Intellectual Property Organization (WIPO) offers PATENTSCOPE with a full-text search of published international patent applications and machine translations for some documents, as well as a list of international patent databases.
- Korean Intellectual Property Rights Information Service (KIPRIS)
- State Intellectual Property Office (SIPO) with machine translation of Chinese patents.
- Other International Intellectual Property Offices with online patent databases include Australia, Canada, Denmark, Finland, France, Germany, Great Britain, India, Israel, Netherlands, Norway, Sweden, Switzerland, and Taiwan.
- Search non-patent literature. Inventions can be made public in many non-patent publications. It is recommended that you search journals, books, websites, technical catalogs, conference proceedings, and other print and electronic publications.
To review your search, you can hire a registered patent attorney to assist. A preliminary search will help one better prepare to talk about their invention and other related inventions with a professional patent attorney. In addition, the attorney will not spend too much time or money on patenting basics.