News on China's scientific and technological development.

tphuang

Lieutenant General
Staff member
Super Moderator
VIP Professional
Registered Member
s_77237f1a169f4a8aa79e93f042702f62.jpg

Huawei to unveil freebuds pro 3 ear bud. Supports NearLink communication. When paired with Mate 60, can achieve 1.5 Mbps lossless sound quality, verified in Huawei lab
Please, Log in or Register to view URLs content!

compared to BT, NearLink also reduces power consumption to 60%, 6x data transfer, 1/30 delay & 10x connection

The reduced power consumption allows for 33 hour continuous usage, supports wireless charging, Charging box can also support pairing with devices.
 

SanWenYu

Captain
Registered Member
China-SAE (
Please, Log in or Register to view URLs content!
) released the nominations for its "scientific and technological awards" of year 2023. Here we can see some of the directions the auto industry is moving towards and the key players that are leading the force.

The top 2 are from BYD and CATL, namely BYD's "cell-to-body platform and key technologies" and CATL's "key technologies in mass production of power batteries".

Please, Log in or Register to view URLs content!
 

Attachments

  • 2023年中国汽车工程学会科学技术奖拟授项目奖公示(1).pdf
    424.1 KB · Views: 4

SanWenYu

Captain
Registered Member
China spent a little more than 3 trillion yuans on R&D in 2022, 10.1% increase YOY. The expenditure was 2.54% of the GDP of 2022 while in 2021 it was 2.43% of the GDP.

Expenditure on fundamental research is 202 billion yuans, 11.4% increase YOY. This amounts to 6.57% of the total R&D expense while in 2021 it was 6.50%.

The business sectors contributed the lion's share of the total R&D expenditure in 2022, about 2.39 trillion yuans and 11.4% increase YOY.

Business in the high-tech manufacturing spent 650 billion yuans on R&D. This amounts to 2.91% of their total revenue. In 2021, it was 2.71%. There are 7 segments that spent more than 100 billion yuans on R&D in 2022 while there were 5 in 2021. The top 3 are ICT (409 billions), electricity equipment manufacturing (209), auto (165).

The more economically developed regions in eastern China, with the exception of Beijing, lead in expenditure on R&D. 12 provincial regions spent more than 100 billion yuans on R&D in 2022. The top 5 are Guandong (441 billions), Jiangshu (384), Beijing (284), Zhejiang (241), Shandong (218). Beijing has the highest ration of R&D by GDP of 6.83%, followed by Shanghai (4.44%) and Tianjing (3.49%).

Please, Log in or Register to view URLs content!

2022年,全国共投入研究与试验发展(R&D)经费30782.9亿元,比上年增加2826.6亿元,增长10.1%;研究与试验发展(R&D)经费投入强度(与国内生产总值之比)为2.54%,比上年提高0.11个百分点。按研究与试验发展(R&D)人员全时工作量计算的人均经费为48.4万元,比上年下降0.5万元。

分活动类型看,全国基础研究经费2023.5亿元,比上年增长11.4%;应用研究经费3482.5亿元,增长10.7%;试验发展经费25276.9亿元,增长9.9%。基础研究经费所占比重为6.57%,比上年提升0.07个百分点;应用研究和试验发展经费所占比重分别为11.3%和82.1%。

分活动主体看,各类企业研究与试验发展(R&D)经费23878.6亿元,比上年增长11.0%;政府属研究机构经费3814.4亿元,增长2.6%;高等学校经费2412.4亿元,增长10.6%;其他主体经费677.5亿元,增长22.3%。企业、政府属研究机构、高等学校经费所占比重分别为77.6%、12.4%和7.8%。

分产业部门看,高技术制造业研究与试验发展(R&D)经费6507.7亿元,投入强度(与营业收入之比)为2.91%,比上年提高0.20个百分点。在规模以上工业企业中,研究与试验发展(R&D)经费投入超过千亿元的行业大类有7个,比上年增加2个,这7个行业的经费占全部规模以上工业企业研究与试验发展(R&D)经费的比重为63.2%(详见附表1)。

分地区看,研究与试验发展(R&D)经费投入超过千亿元的省(市)有12个,分别为广东(4411.9亿元)、江苏(3835.4亿元)、北京(2843.3亿元)、浙江(2416.8亿元)、山东(2180.4亿元)、上海(1981.6亿元)、湖北(1254.7亿元)、四川(1215亿元)、湖南(1175.3亿元)、安徽(1152.5亿元)、河南(1143.3亿元)和福建(1082.1亿元)。研究与试验发展(R&D)经费投入强度(与地区生产总值之比)超过全国平均水平的省(市)有7个,依次为北京(6.83%)、上海(4.44%)、天津(3.49%)、广东(3.42%)、江苏(3.12%)、浙江(3.11%)和安徽(2.56%)(详见附表2)。
 

SanWenYu

Captain
Registered Member
Chinese scientists from Zijin Mining Group and South China University of Technology created a new material based on Cesium that can dramatically increase current density in electrolysis of water, reducing electricity needed in hydrogen production. This can potentially lower the cost of hydrogen as a source of energy.

Zijin has rich reserve of Cesium and Rubidium, as noted by the lead scientist of this invention. Rubidium is another element that his team will focus on.

Please, Log in or Register to view URLs content!

我国科研人员突破电解制氢高能耗难题​

一直以来,电解水制氢的方式都存在电能消耗高、制氢成本高等问题,制约着号称“终极能源”的氢能源的推广应用。9月18日,记者从湖南长沙湘江新区获悉,紫金矿业新能源新材料科技(长沙)有限公司刘瑛博士团队,联合华南理工大学陈宇教授团队,研发了一种含铯元素的新材料,可使固体氧化物电解水制氢的产氢速率较传统电解水制氢技术得到较大提升,有望为氢能高效低能耗制取提供新路径。这一成果,日前发布在国际能源学类期刊《美国化学学会能源快报》上。

氢能是我国能源体系的重要组成部分和实现绿色低碳转型的重要载体。我国目前利用最多的方式为化石能源制氢。作为最清洁的制氢技术和储能形式的电解水制氢,因电能消耗高、制氢成本高等原因,使用占比仅为1%。如何降低电解水制氢成本,是行业面临的一大挑战,也是真正实现能源零碳转型的关键。

刘瑛团队着力于将紫金矿业的铷、铯等资源优势应用到新能源领域。他提出,铷、铯具有很强的化学活性和优异的光电效应性能,有望在电解水制氢的过程中发挥这些特性。经与华南理工大学陈宇教授团队合作,反复比对、尝试摸索,项目团队合成了全新化合物材料。实验发现,这种铯掺杂新电极材料表现出了极高的电化学反应活性,从而使得电解过程在中低温环境下运行成为可能,极大提高了电解制氢的电化学性能和稳定性,从而大幅度降低运行成本。

“传统电解制氢技术如碱性和质子膜电解池普遍的电流密度为0.5~1.5安培每平方厘米,但此次试验成果提升到了2.85安培每平方厘米,有望显著降低电解池材料的消耗和生产成本,延长使用寿命,为加快氢能高效制取提供极大助力。”刘瑛说。同时他表示,紫金矿业拥有的位于湖南道县的湘源硬岩锂多金属矿,伴生氧化铷49万吨,伴生氧化铯达8000吨。如果能将这一研究成果广泛应用,可有效解决铷、铯小金属资源利用问题。

据介绍,后续,紫金长沙新能源科技公司还将进一步研究铷元素在电解水制氢中的试验情况,以及铷、铯在钙钛矿太阳能电池中的应用情况。
 

broadsword

Brigadier
View attachment 118986

Huawei to unveil freebuds pro 3 ear bud. Supports NearLink communication. When paired with Mate 60, can achieve 1.5 Mbps lossless sound quality, verified in Huawei lab
Please, Log in or Register to view URLs content!

compared to BT, NearLink also reduces power consumption to 60%, 6x data transfer, 1/30 delay & 10x connection

The reduced power consumption allows for 33 hour continuous usage, supports wireless charging, Charging box can also support pairing with devices.

Nearlink with latency of 1/30ms, compared with the World's fastest robot, the Qibbot with 12ms.

That's also orders of magnitude faster than the widely-available Qualcomm's aptx.

That's a game-changer and I think hardcore gamers and people with serious aficionados in Huawei-banned places would not mind taking the plunge to own a Huawei gig.
 
Top