出发吧爱情

金“蒜”盘闯出致富路_我的网站

一 | 《日报》全媒体记者张宝程　　3个月的生长期到了，6月11日一大早，李海山找来30多名帮手，到自家地块收获独头蒜。

Different types of consumer lithium primary batteries on display Photo: VCGChinese researchers have developed a new high-energy lithium primary battery that can deliver both long-lasting energy and strong bursts of power while maintaining stable performance at temperatures as low as -40 C, Science and Technology Daily reported on Monday.
A research team led by Chen Zhongwei at the Dalian Institute of Chemical Physics under the Chinese Academy of Sciences developed a 25-ampere-hour pouch-type lithium-metal primary battery. Tests conducted by the safety laboratory of the China Electronics Standardization Institute showed that the battery achieved an energy density of more than 750 Watt-hour per kilogram at a low discharge rate, according to the report.
Meanwhile its discharge rate can be increased by up to 100 times, enabling short bursts of high-current discharge at 10C. The "C" stands for C-rate, which is the charge and discharge rates of a battery. According to sector website Battery University, the capacity of a battery is commonly rated at 1C, meaning that a fully charged battery rated at 1Ah should provide 1A for one hour. The same battery discharging at 0.5C should provide 500mA for two hours, and at 2C it delivers 2A for 30 minutes.
The new battery puts China among the world's leading players in high-power primary battery technology.
Primary batteries offer high specific energy, long storage times and instant readiness, allowing them to be used immediately even after long storage.
Primaries play an important role, especially when charging is impractical or impossible, such as in military combat, rescue missions and forest-fire services, the article said.
Traditional lithium primary batteries can store large amounts of energy for long periods, but their ability to rapidly release that energy can be limited. The new battery is designed to combine high energy density with high power output, allowing it to both operate for extended periods and provide large amounts of power when needed.
The battery can deliver short bursts of high-current discharge at up to 10C and sustain discharge at 4C. At room temperature, its specific power reaches 4,487 Watts per kilogram, according to Science and Technology Daily.
The battery also maintains strong performance under extremely cold conditions. At -40 C, the battery retains an energy density of 447 Watt-hour per kilogram at a 1C discharge rate. Its annual self-discharge rate is below 1 percent, meaning that it loses relatively little stored energy during long periods of standby.
Such characteristics could make the battery suitable for equipment that needs both long-term energy storage and sudden high-power output, including drones, robots, spacecraft and sensors deployed in remote areas.
Chen said the team achieved a breakthrough in cathode materials by developing a high-entropy oxide material and has established a pilot production line with an annual capacity of 10 tons, linking material development with battery-cell production.
The battery has passed third-party testing and is now undergoing further validation for applications including drones, robots, spaceflight simulators and field sensor nodes, according to Chen.
Global Times
。“今年长势不错，估计一亩地能产两千多斤，市场行情也好，每斤6元左右，每亩毛钱能卖1.3万元，真是咱老百姓致富的金‘蒜’盘啊。” 　　绥中县塔山屯镇大施宝村地理位置优越，气候、土壤等均适合种植独头蒜。像其他种植户一样，依托国家的好政策，在当地政府大力扶持下，10余年来，李海山在种植独头蒜的道路上踏实前进。“一开始是几亩、十几亩，到现在70亩。这项产业让我尝到了甜头，家里以前破旧的房子变成现在的二层小楼，车也不缺，小日子红红火火。” 　　别看李海山说得轻巧，其实，在生产经营过程中，他与家人花费了很多心思和辛苦。

二 | 每年的9月份，从山东采购独头蒜种子，然后放在院子里的通风、阴凉处。到了寒冷时节，还得拿到屋子里，温度不能太高。

三 | “种子很娇气，存放时温度不能过高或过低，否则影响质量，来年开春种植后影响出苗率及产量。

四 | ” 　　每年的3月初，开始种植独头蒜。十余天里，李海山与家人非常忙，几乎每天都吃喝在地里，生怕耽搁了农时。种子下到地里，他还时时观察水分大小、温度高低，目的是让独头蒜茁壮成长。“功夫不负有心人，今年我家能产十五六万斤独头蒜，产值近100万元，纯利润将近40万元。” 　　种植、管理、收获等方面均科学规范、合理有序，当地的独头蒜个头大、颜色好、口感佳，十余年来，名声在外。

五 | 每当收获季来临，种植户通过自身的人脉资源或农村经纪人，联系上四川、云南、重庆等地的客商，对方开着大货车及时赶过来，种植户不用将独头蒜运回家，在田间地头就将产品卖掉，省去了脱水、储存等环节。　　据大施宝村村支书赵刚介绍，村民的市场嗅觉非常敏锐，加上村干部积极宣讲政策、大力帮扶、拓展市场，村民种植独头蒜的热情一年比一年高。“今年村里种植1000余亩独头蒜，村民还在临近村子承包了将近4000亩，共种植5000亩左右。产值能达到6000万元，纯利润2000余万元。” 　　为了让农业产业进一步“身价看涨”，塔山屯镇镇政府积极与有关部门联系，批复了几块大型晾晒场地，便于种植户晾晒独头蒜。该镇镇长孙雪说，受市场行情波动影响，有些种植户收获完不立即售卖，而是晾晒后储存在恒温库里。