RELEASE: Lithium Ion Battery Using X-SEPA(TM) from 3DOM Alliance: Long Life at High Temperature (2)

-Lithium-ion battery using 3DOM Alliance's X-SEPA(TM) achieves long life in high-temperature conditions, exceeding conventional battery life in normal temperature.

RELEASE: Lithium Ion Battery Using X-SEPA(TM) from 3DOM Alliance: Long Life at High Temperature (2)

-Lithium-ion battery using 3DOM Alliance's X-SEPA(TM) achieves long life in high-temperature conditions, exceeding conventional battery life in normal temperature

Aims to boost electrification in the hottest regions of the world with a battery life of approximately 9,000 cycles at 60℃

TOKYO, April 18, 2023 /PRNewswire/ -- 3DOM Alliance Inc. ("3DOM Alliance") today announced the development of a lithium-ion battery with the company's proprietary X-SEPA™ separator and high-temperature resistant electrolyte Optimized for use in high temperature environments. Data from charge and discharge cycle life tests show that the battery life under high temperature conditions exceeds that of conventional batteries under normal temperature conditions. The 3DOM Alliance expects the useful life to reach approximately 9,000 cycles.

Developed by the 3DOM Alliance, the X-SEPA™ is comprised of multiple layers of 3DOM (Three-Dimensional Ordered Macroporous) separators, which are highly heat-resistant polyimide membranes containing a uniform three-dimensional matrix of pores. This contributes to longer battery life, as well as increased reliability, heat resistance, and high-speed charging and discharging. Preparing for mass production, the 3DOM Alliance began providing X-SEPA™ samples in February 2023.

The global decarbonization movement has raised the growing need for electric mobility solutions, especially in developing countries, many of which are among the hottest regions in the world. However, high temperatures cause degradation of the general purpose electrolyte, significantly reducing battery life. This hinders the practicality of battery electrification and contributes to increased manufacturing, waste, and costs.

In response to market needs in high-temperature regions, the 3DOM Alliance has developed a lithium-ion battery with long life in high-temperature conditions by using X-SEPA™ in combination with a high-temperature resistant electrolyte. . The high-temperature resistant electrolyte suppresses degradation in high-temperature environments due to its high viscosity and high boiling point, but it has been difficult to use in lithium-ion batteries because its high viscosity makes it incompatible with high-temperature polypropylene separators. general use. In contrast, the highly porous structure of X-SEPA™ and the high wettability of its polyimide material to organic electrolytes allow the use of electrolytes with high viscosity and high boiling points.

3DOM Alliance conducted a 60℃ charge-discharge cycle life test to assess the life and durability of batteries equipped with X-SEPA™ and high-temperature resistant electrolyte compared to batteries using a general purpose separator and electrolyte. As shown in Figure 1, interim results from ongoing tests show that the battery equipped with X-SEPA™ and high temperature resistant electrolyte demonstrates significantly higher capacity retention. Even under high temperature conditions, the charge-discharge cycle life of this battery exceeds the charge-discharge cycle life of conventional batteries in a normal temperature environment.

As shown in Figure 2, 3DOM Alliance estimates that the battery equipped with X-SEPA™ and high temperature resistant electrolyte can achieve a charge and discharge life cycle of approximately 9,000 cycles when the end of life is set to a retention capacity of 60%. The 3DOM Alliance plans to verify this through ongoing testing and announce more results as they become available.

3DOM Alliance subsidiary noco-noco Pte. Ltd. ("noco-noco"), a Singapore-based decarbonization solutions provider, plans to provide X-SEPATM-equipped batteries through services that take advantage of the features of the resulting battery, including long life in high temperature conditions. Noco-noco is currently working to introduce 3DOM Alliance's battery technology into mobility applications through multiple projects in Southeast Asia, including an electric minibus project with Assemblepoint Co., Ltd. announced earlier this month. Using X-SEPA™, noco-noco aims to address the need for batteries that can achieve higher performance and sustainability in hot climates to accelerate electrification in target markets such as South and Southeast Asia.

About 3DOM Alliance Inc.

Established in Japan in 2014, 3DOM Alliance Inc. strives to solve environmental problems through research and development of cutting-edge technologies and business models that promote decarbonization and green conservation. For more information about 3DOM Alliance Inc., please visit

About noco-noco Pte. Ltd.

noco-noco Pte. Ltd. is a decarbonisation solutions provider working to accelerate the global transformation towards a carbon neutral economy and an affiliate of the 3DOM Alliance. By using X-SEPA™, a proprietary multi-layer battery separator, and by providing sustainable mobility services and an innovative energy management platform, noco-noco addresses the need for clean, affordable and sustainable energy solutions. For more information on noco-noco, visit

Important information and where to find it

On December 29, 2022, Prime Number Holding Limited, an exempt company limited by shares incorporated under the laws of the Cayman Islands ("PubCo"), Prime Number Acquisition I Corp. ("PNAC"), Prime Number Merger Sub Inc. , a Delaware corporation and a wholly owned direct subsidiary of PubCo, Prime Number New Sub Pte. Ltd., a Singapore private company limited by shares and a wholly owned direct subsidiary of PubCo, noco-noco and certain shareholders of noco -noco, which collectively hold a majority interest, have entered into a business combination agreement, pursuant to which PNAC proposes to enter into a business combination with noco-noco involving a merger and share exchange. This press release does not contain all the information that should be considered in connection with the proposed business combination and is not intended to form the basis of any investment decision or any other decision with respect to the business combination. PNAC shareholders and other interested persons are encouraged to read, where available, the proxy statement/prospectus and amendments thereto and other documents filed in connection with the proposed business combination, as these materials will contain important information regarding noco-noco, PNAC and the proposed business combination. When available, the proxy/prospectus statement and other materials relevant to the proposed business combination will be mailed to PNAC shareholders beginning on a record date to be set for voting on the proposed business combination. Such shareholders may also obtain copies of the proxy/prospectus statement and other documents filed with the Securities and Exchange Commission (the "SEC"), free of charge, once they become available, on the SEC's website at www., or by directing a request to PNAC at its main executive offices at c/o 1129 Northern Blvd, Suite 404, Manhasset, NY 11030, United States.

forward-looking statements

This press release contains forward-looking statements within the meaning of section 27A of the US Securities Act of 1933, as amended (the "Securities Act"), and section 21E of the Securities Exchange Act. of the USA of 1934 ("Stock Exchange Act") which are based on beliefs and assumptions and on information currently available to noco-noco and PNAC. In some cases, you can identify forward-looking statements with the following words: "may", "will", "could", "should", "expects", "intends", "plans", "anticipates", "believes" , "estimate", "predict", "project", "potential", "continue", "ongoing", "target", "seek" or the negative or plural of these words, or other similar expressions that are predictions or indicate future events or prospects, although not all forward-looking statements contain these words. Any statements that refer to expectations, projections or other characterizations of future events or circumstances, including the proposed business combination, the benefits and synergies of the proposed business combination, the markets in which noco-noco operates, as well as any information about possible or assumed future results of operations of the combined company after consummation of the proposed business combination are also forward-looking statements. These statements involve risks, uncertainties and other factors that may cause actual results, activity levels, performance or achievements to differ materially from those expressed or implied by these forward-looking statements. Although both noco-noco and PNAC believe that they have a reasonable basis for each forward-looking statement contained in this release, both noco-noco and PNAC caution you that these statements are based on a combination of currently known facts and factors and future projections, which they are inherently uncertain. Neither noco-noco nor PNAC can assure you that forward-looking statements in this release will be accurate. These forward-looking statements are subject to a number of risks and uncertainties, including, but not limited to, the ability to complete the business combination due to the inability to obtain PNAC shareholder approval or satisfy other closing conditions in the business combination, the occurrence of any event that could lead to the termination of the business combination agreement, the ability to recognize the anticipated benefits of the business combination, the number of redemption requests made by PNAC's public shareholders , costs related to the transaction, the impact of the global COVID-19 pandemic, the risk that the transaction will disrupt current plans and operations as a result of the announcement and consummation of the transaction, the result of any potential litigation, proceedings governmental or regulatory and other risks and uncertainties. There may be additional risks that neither noco-noco nor PNAC is currently aware of or that noco-noco and PNAC currently believe are irrelevant and could also cause actual results to differ from those contained in forward-looking statements. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by noco-noco, PNAC and their respective directors, officers or employees or any other person that noco-noco and PNAC will achieve their objectives and plans in any or all specified time frames. Forward-looking statements in this press release represent the views of noco-noco and PNAC as of the date of this communication. Subsequent events and developments may cause those views to change. However, while noco-noco and PNAC may update these forward-looking statements in the future, there is currently no intention to do so, except to the extent required by applicable law. Therefore, you should not rely on these forward-looking statements to represent the views of noco-noco or PNAC as of any date after the date of this communication.

Neither offer nor request

This press release is not a proxy statement or solicitation of proxy, consent or authorization with respect to any security or with respect to the potential transaction and does not constitute an offer to sell or a solicitation of an offer to buy any security of noco- noco or PNAC, nor shall there be any sale of such securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction. No offering of securities will be made except by means of a prospectus that meets the requirements of the Securities Law.

Participants in the Application

noco-noco, PNAC, and their respective directors, executive officers, other members of management, and employees may, under SEC rules, be considered participants in PNAC's shareholder proxy solicitation in connection with the proposed transaction. Information about persons who, under SEC rules, may be considered participants in the PNAC shareholder solicitation in connection with the proposed business combination will be set forth in the proxy/prospectus statement on Form F-4 attached file with the SEC.

CONTACTO: 3DOM Alliance Inc. PR Team, E-mail:

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